Pub Date : 2021-09-01DOI: 10.21608/epsj.2021.195748
N. Boutrous
This experiment was conducted to study the effect of long term selection for breast circumference (BC) of Gimmizah (GM) chickens on some body measurements of males at 12, 25 and 45 weeks of age such as body weight (BW), BC, shank length (SL), and secondary sexual characters as comb length (CL) and wattle length (WL), besides fertility with hatchability and their genetic parameters. Two hundred and twenty GM hens with twenty males were randomly chosen and considered as base population (G0). Chicks produced from G0 were selected for BC at 12-wk of age and selected through additional five generations. The results revealed that selection for BC significantly increased BW at 12-wk of age for selected line compared to control one among 4 and 5 th generations. Comb length for selected lines had significantly increased compared to control lines for CL12 in G4 and G5. Wattle lengths for selected lines were increased (p˂0.05) in the last three generations compared to the rest ones among all the experimental ages. There were a significant improvement of fertility and hatchability of fertile eggs percentages among the subsequent selected generations. Most of heritability ( estimates for CL and WL were considered high and ranged between 0.50 and 0.78. Low estimates of were recorded for which ranged between 0.02 to 0.14 and for hatchability of fertile eggs between 0.02 and 0.05. Furthermore, CL represented high genetic correlation with fertility among the bird's ages and generations. In conclusion, body circumference could be used as selection tool for improving body weight and secondary sexual characters without detrimental effect on fertility, besides suggesting other body measurements as shank, comb and wattle lengths could be included in selection index.
{"title":"GENETIC RESPONSE OF BODY WEIGHT, SECONDARY SEXUAL CHARACTERS AND HATCHABILITY OF GIMMIZAH CHICKENS SELECTED FOR BREAST CIRCUMFERENCE","authors":"N. Boutrous","doi":"10.21608/epsj.2021.195748","DOIUrl":"https://doi.org/10.21608/epsj.2021.195748","url":null,"abstract":"This experiment was conducted to study the effect of long term selection for breast circumference (BC) of Gimmizah (GM) chickens on some body measurements of males at 12, 25 and 45 weeks of age such as body weight (BW), BC, shank length (SL), and secondary sexual characters as comb length (CL) and wattle length (WL), besides fertility with hatchability and their genetic parameters. Two hundred and twenty GM hens with twenty males were randomly chosen and considered as base population (G0). Chicks produced from G0 were selected for BC at 12-wk of age and selected through additional five generations. The results revealed that selection for BC significantly increased BW at 12-wk of age for selected line compared to control one among 4 and 5 th generations. Comb length for selected lines had significantly increased compared to control lines for CL12 in G4 and G5. Wattle lengths for selected lines were increased (p˂0.05) in the last three generations compared to the rest ones among all the experimental ages. There were a significant improvement of fertility and hatchability of fertile eggs percentages among the subsequent selected generations. Most of heritability ( estimates for CL and WL were considered high and ranged between 0.50 and 0.78. Low estimates of were recorded for which ranged between 0.02 to 0.14 and for hatchability of fertile eggs between 0.02 and 0.05. Furthermore, CL represented high genetic correlation with fertility among the bird's ages and generations. In conclusion, body circumference could be used as selection tool for improving body weight and secondary sexual characters without detrimental effect on fertility, besides suggesting other body measurements as shank, comb and wattle lengths could be included in selection index.","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83475226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-01DOI: 10.21608/epsj.2021.195783
F. Nassar
Transforming growth factor-β (TGF-β) genes considered as one of the large family of multifunctional growth factors that participate in the regulation of a broad range of biological processes in chicken. The current study was conducted to determine genetic polymorphisms of TGF-β2 gene by using PCR-RFLP method in Giza M-2 line which selected for high 6week live body weight (LBW) for seven generations compared to random bred control (RBC) line. Also, the association between TGF-β2 with productive performance was evaluated for each line. Results indicated that, Giza M-2 line had higher LBW at different ages, LBW at 6 week of age (LBW6), and carcass parts weights and percentages compared to RBC line. In addition, Giza M-2 line had high TGF-β2-BB genotype frequency value (0.80) which explains the positive effects of TGF-β2 gene on LBW and carcass traits in Giza M-2 line compared to RBC line. The current result conducts the broad significant effects of TGF-β2 gene on productive performance of chickens. In addition, the association between these valuable productive traits and TGF β2 gene will effectively develop the selection process by using MarkerAssisted Selection (MAS) in Giza M-2 line breeding program in the near future.
{"title":"GENOMIC ANALYSIS OF TRANSFORMING GROWTH FACTOR β2 GENE POLYMORPHISM ASSOCIATED WITH PRODUCTIVE PERFORMANCE IN GIZA M-2 CHICKEN LINE","authors":"F. Nassar","doi":"10.21608/epsj.2021.195783","DOIUrl":"https://doi.org/10.21608/epsj.2021.195783","url":null,"abstract":"Transforming growth factor-β (TGF-β) genes considered as one of the large family of multifunctional growth factors that participate in the regulation of a broad range of biological processes in chicken. The current study was conducted to determine genetic polymorphisms of TGF-β2 gene by using PCR-RFLP method in Giza M-2 line which selected for high 6week live body weight (LBW) for seven generations compared to random bred control (RBC) line. Also, the association between TGF-β2 with productive performance was evaluated for each line. Results indicated that, Giza M-2 line had higher LBW at different ages, LBW at 6 week of age (LBW6), and carcass parts weights and percentages compared to RBC line. In addition, Giza M-2 line had high TGF-β2-BB genotype frequency value (0.80) which explains the positive effects of TGF-β2 gene on LBW and carcass traits in Giza M-2 line compared to RBC line. The current result conducts the broad significant effects of TGF-β2 gene on productive performance of chickens. In addition, the association between these valuable productive traits and TGF β2 gene will effectively develop the selection process by using MarkerAssisted Selection (MAS) in Giza M-2 line breeding program in the near future.","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90619108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-01DOI: 10.21608/epsj.2021.197911
Naela Abdel-Monem, Azza Elsebai, S. Elnagar, A. A. Abd El-hady
This study aimed to evaluate the effect of different forms of Zinc oxide as bulk and nano particles supplemented diet on hematological profile, antioxidant status, liver and kidney functions of Alexandria chickens. A total of 150 females and 25 males of Alexandria chickens at an age of 32 weeks were randomly divided into five groups in each group 30 female and 5 male for 12 weeks. The first group served as control group. Birds of the 2 nd and 3 rd groups were fed basal diet containing 40 and 80 mg zinc oxide (Bulk shape, ZnO) per kg diet and the 4 th and 5 th groups were fed basal diet containing 40 and 80 mg zinc oxide (Nano shape, ZnO-NPs) per kg diet, respectively. The results indicated that Hb and MCHC were significantly increased with the dose of 40 mg/kg ZnO. Data obtained revealed that there is a significant effect of zinc oxide forms on antioxidant status. While, 80 mg/kg ZnO-NPs caused a significant increase on catalase (CAT), superoxide dismutase (SOD) and total antioxidant capacity (TAC), but malondialdehyde (MDA) concentration was the lowest with the dose of 80 mg/kg ZnO-NPs. Total protein and albumin were affected by zinc oxide forms, sex and the interaction between them, but globulin was not significantly affected. Also, zinc oxide forms supplementation had no significant effect on liver and kidney functions. Generally, it can be considered that zinc oxide nanoparticles (ZnO-NPs) at a dose of 80 mg/kg addition to Alexandria chickens’ diet can enhance physiological and antioxidant statuses.
{"title":"IMPACT OF DIETARY ZINC OXIDE NANO-PARTICLES ON ANTIOXIDANT STATUS, LIVER AND KIDNEY FUNCTIONS IN ALEXANDRIA CHICKENS","authors":"Naela Abdel-Monem, Azza Elsebai, S. Elnagar, A. A. Abd El-hady","doi":"10.21608/epsj.2021.197911","DOIUrl":"https://doi.org/10.21608/epsj.2021.197911","url":null,"abstract":"This study aimed to evaluate the effect of different forms of Zinc oxide as bulk and nano particles supplemented diet on hematological profile, antioxidant status, liver and kidney functions of Alexandria chickens. A total of 150 females and 25 males of Alexandria chickens at an age of 32 weeks were randomly divided into five groups in each group 30 female and 5 male for 12 weeks. The first group served as control group. Birds of the 2 nd and 3 rd groups were fed basal diet containing 40 and 80 mg zinc oxide (Bulk shape, ZnO) per kg diet and the 4 th and 5 th groups were fed basal diet containing 40 and 80 mg zinc oxide (Nano shape, ZnO-NPs) per kg diet, respectively. The results indicated that Hb and MCHC were significantly increased with the dose of 40 mg/kg ZnO. Data obtained revealed that there is a significant effect of zinc oxide forms on antioxidant status. While, 80 mg/kg ZnO-NPs caused a significant increase on catalase (CAT), superoxide dismutase (SOD) and total antioxidant capacity (TAC), but malondialdehyde (MDA) concentration was the lowest with the dose of 80 mg/kg ZnO-NPs. Total protein and albumin were affected by zinc oxide forms, sex and the interaction between them, but globulin was not significantly affected. Also, zinc oxide forms supplementation had no significant effect on liver and kidney functions. Generally, it can be considered that zinc oxide nanoparticles (ZnO-NPs) at a dose of 80 mg/kg addition to Alexandria chickens’ diet can enhance physiological and antioxidant statuses.","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78857622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-01DOI: 10.21608/epsj.2021.197896
mohamed ibrahim el-malky, M. Osman, Azza Elsebai, Mohamed H. Khalil, A. Safwat
The present study was performed to evaluate the untraditional natural additives (Melittin and Thepax) as prospective alternatives to classical therapy treatment through studying their effects on productive performance, carcass characteristics, meat composition and economic efficiency of broiler chicks. A total of 810 one-day old chicks, were randomly distributed into nine experimental groups of 90 birds in three replicates. The experimental treatments were: T1= Control, T2= Melittin (83.3 μg/L), T3= Melittin (166.6 μg/L), T4= Thepax (0.25 g/kg), T5= Thepax (0.5 g/kg), T6= Melittin (83.3 μg/L) + Thepax (0.25 g/kg), T7= Melittin (166.6 μg/L) + Thepax (0.25 g/kg), T8= Melittin (83.3 μg/L) + Thepax (0.5 g/kg), T9= Melittin (166.6 μg/L) + Thepax (0.5 g/kg). The results revealed that the highest BW and BWG were achieved by birds of T6 and T7 (with 8.84, 7.97% and 9.05, 8.13% higher than the control group, respectively). Moreover, birds treated with the various combinations of Thepax and Melittin (T6, T7, T8, and T9) had significantly the best FCR values (with 10.38% improvement, on average, compared to the control group). The same previous groups had significantly the lowest mortality rates. Birds of T6 recorded the highest European production efficiency factor being 376.73. Additionally, broilers treated with various combinations of Melittin and Thepax had significantly the highest carcass weight with the lowest abdominal fat percentages. It could be observed also that birds treated with higher Melittin level (T3, T7 or T9 groups) had significantly the lowest breast protein percentages and the highest fat composition. Finally, broilers of T6 obtained the best economic efficiency value. In conclusion, supplementing broilers with 83.3 μg Melittin /L water + 0.25 g Thepax /kg feed could be used to replace the classical veterinary treatments, that provides beneficial effects on productive performance, health status, and carcass quality of broilers with improving the economic efficiency of broiler production.
{"title":"EFFECT OF MELITTIN AND THEPAX AS NATURAL ALTERNATIVES TO TRADITIONAL ANTIMICROBIAL AND ANTIVIRAL TREATMENTS ON BROILER PERFORMANCE AND SOME RELATED TRAITS","authors":"mohamed ibrahim el-malky, M. Osman, Azza Elsebai, Mohamed H. Khalil, A. Safwat","doi":"10.21608/epsj.2021.197896","DOIUrl":"https://doi.org/10.21608/epsj.2021.197896","url":null,"abstract":"The present study was performed to evaluate the untraditional natural additives (Melittin and Thepax) as prospective alternatives to classical therapy treatment through studying their effects on productive performance, carcass characteristics, meat composition and economic efficiency of broiler chicks. A total of 810 one-day old chicks, were randomly distributed into nine experimental groups of 90 birds in three replicates. The experimental treatments were: T1= Control, T2= Melittin (83.3 μg/L), T3= Melittin (166.6 μg/L), T4= Thepax (0.25 g/kg), T5= Thepax (0.5 g/kg), T6= Melittin (83.3 μg/L) + Thepax (0.25 g/kg), T7= Melittin (166.6 μg/L) + Thepax (0.25 g/kg), T8= Melittin (83.3 μg/L) + Thepax (0.5 g/kg), T9= Melittin (166.6 μg/L) + Thepax (0.5 g/kg). The results revealed that the highest BW and BWG were achieved by birds of T6 and T7 (with 8.84, 7.97% and 9.05, 8.13% higher than the control group, respectively). Moreover, birds treated with the various combinations of Thepax and Melittin (T6, T7, T8, and T9) had significantly the best FCR values (with 10.38% improvement, on average, compared to the control group). The same previous groups had significantly the lowest mortality rates. Birds of T6 recorded the highest European production efficiency factor being 376.73. Additionally, broilers treated with various combinations of Melittin and Thepax had significantly the highest carcass weight with the lowest abdominal fat percentages. It could be observed also that birds treated with higher Melittin level (T3, T7 or T9 groups) had significantly the lowest breast protein percentages and the highest fat composition. Finally, broilers of T6 obtained the best economic efficiency value. In conclusion, supplementing broilers with 83.3 μg Melittin /L water + 0.25 g Thepax /kg feed could be used to replace the classical veterinary treatments, that provides beneficial effects on productive performance, health status, and carcass quality of broilers with improving the economic efficiency of broiler production.","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81127152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-01DOI: 10.21608/epsj.2021.195784
I. Salim, Enayat H. Abo El-Azayem, Hanaa Bassiouni
: The present study aimed to investigate the effects of different levels of dietary supplementation of bay laurel ( Laurus nobilis L.) leaves meal (LNL) on growth performance, carcass traits, blood constituents, hematology and plasma antioxidant status of New Zealand White rabbits (NZW). Weaned New Zealand White rabbits 5 weeks old (n = 40, mean body weight 648 g) were randomly selected and classified to four dietary groups. The Control group was fed a basal diet without (LNL); the experimental groups received the basal diet with 1, 2 and 4 g LNL meal/kg diet (Groups LN1g, LN2g and LN4g, respectively). The experimental period lasted for 8 weeks. Results indicated that group LN4g rabbits recorded significantly the highest body weight at 9,11 and 13 weeks of age followed by LN2g. Also, LN4g recorded significantly the best feed conversion ratio followed by LN2g in comparison with the control group. There were no significant differences due to LNL supplementation in carcass characteristics, blood hematology, blood biochemistry and plasma antioxidant status. However, LNL supplementation numerically reduced abdominal fat, total plasma cholesterol (T.Ch), triglycerides (TG) and low-density lipoproteins (LDL) cholesterol compared to control, while, increased total protein, globulin and HDL cholesterol and the differences were not significant. Total antioxidant capacity (TAC), glutathione peroxidase activity (GPx) and catalase enzyme were not significantly affected by LNL supplementation. Generally, the results of the study revealed that bay laurel leaves were useful as a natural supplementation to promote growth of rabbits, with 4g LNL/kg diet being the best and could reduce the negative effects of summer conditions in rabbits.
{"title":"EFFECT OF DIETARY SUPPLEMENTATION OF LAURUS NOBILIS LEAVES MEAL ON GROWTH PERFORMANCE, CARCASS TRAITS AND BLOOD ANTIOXIDANT STATUS OF GROWING NZW RABBITS","authors":"I. Salim, Enayat H. Abo El-Azayem, Hanaa Bassiouni","doi":"10.21608/epsj.2021.195784","DOIUrl":"https://doi.org/10.21608/epsj.2021.195784","url":null,"abstract":": The present study aimed to investigate the effects of different levels of dietary supplementation of bay laurel ( Laurus nobilis L.) leaves meal (LNL) on growth performance, carcass traits, blood constituents, hematology and plasma antioxidant status of New Zealand White rabbits (NZW). Weaned New Zealand White rabbits 5 weeks old (n = 40, mean body weight 648 g) were randomly selected and classified to four dietary groups. The Control group was fed a basal diet without (LNL); the experimental groups received the basal diet with 1, 2 and 4 g LNL meal/kg diet (Groups LN1g, LN2g and LN4g, respectively). The experimental period lasted for 8 weeks. Results indicated that group LN4g rabbits recorded significantly the highest body weight at 9,11 and 13 weeks of age followed by LN2g. Also, LN4g recorded significantly the best feed conversion ratio followed by LN2g in comparison with the control group. There were no significant differences due to LNL supplementation in carcass characteristics, blood hematology, blood biochemistry and plasma antioxidant status. However, LNL supplementation numerically reduced abdominal fat, total plasma cholesterol (T.Ch), triglycerides (TG) and low-density lipoproteins (LDL) cholesterol compared to control, while, increased total protein, globulin and HDL cholesterol and the differences were not significant. Total antioxidant capacity (TAC), glutathione peroxidase activity (GPx) and catalase enzyme were not significantly affected by LNL supplementation. Generally, the results of the study revealed that bay laurel leaves were useful as a natural supplementation to promote growth of rabbits, with 4g LNL/kg diet being the best and could reduce the negative effects of summer conditions in rabbits.","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91323338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-01DOI: 10.21608/epsj.2021.195785
S. Sherif
: This experiment aimed to study the effects of feed restriction (FR) on weaning New Zealand White Rabbit's growth performance. Seventy-five unsexed rabbits (5 weeks of age) were divided to five experimental treatments with five equal replications. Feed restriction program was used in the first two weeks (5-7 weeks old) after weaning as follows; the first treatment (control) was free fed the experimental diet. While other treatments (2 to 5) were fed restricted diets at levels of 10, 20, 30 and 40%, respectively from the free feeding of the control. All rabbits were free fed grower diet from 8 to 12 weeks of age. During this trial rabbit growth performance were evaluated, carcass traits, mortality rate and economic efficiency. Some blood parameters in rabbit serum were also determined. The obtained results illustrated that final weight of rabbit was recovered and feed conversion ratio was improved by FR. FR program did not affect carcass traits. Serum blood parameters were not affected by feed restriction. It could be concluded that feed restriction at levels of 30 or 40% during the first two weeks after weaning had beneficial effects on rabbit growth performance, improved feed conversion and economic efficiency and decreasing mortality rate.
{"title":"EFFECT OF FEED RESTRICTION REGIMEN ON PRODUCTIVE PERFORMANCE AND ECONOMICAL EFFICIENCY OF WEANING NZW RABBITS","authors":"S. Sherif","doi":"10.21608/epsj.2021.195785","DOIUrl":"https://doi.org/10.21608/epsj.2021.195785","url":null,"abstract":": This experiment aimed to study the effects of feed restriction (FR) on weaning New Zealand White Rabbit's growth performance. Seventy-five unsexed rabbits (5 weeks of age) were divided to five experimental treatments with five equal replications. Feed restriction program was used in the first two weeks (5-7 weeks old) after weaning as follows; the first treatment (control) was free fed the experimental diet. While other treatments (2 to 5) were fed restricted diets at levels of 10, 20, 30 and 40%, respectively from the free feeding of the control. All rabbits were free fed grower diet from 8 to 12 weeks of age. During this trial rabbit growth performance were evaluated, carcass traits, mortality rate and economic efficiency. Some blood parameters in rabbit serum were also determined. The obtained results illustrated that final weight of rabbit was recovered and feed conversion ratio was improved by FR. FR program did not affect carcass traits. Serum blood parameters were not affected by feed restriction. It could be concluded that feed restriction at levels of 30 or 40% during the first two weeks after weaning had beneficial effects on rabbit growth performance, improved feed conversion and economic efficiency and decreasing mortality rate.","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83865647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.21608/epsj.2021.182510
S. Ali
One hundred and eight male one-day age broiler chicks (Ross 308) were used in a 42-day experiment with objectives to study the effect of supplementing phytase with or without added di-calcium phosphate (DCP) to broiler chickens’ diets on their performance, carcass characteristics and economic appraisal. The birds were allocated to three treatments in a completely randomized design (CRD) with three replicates each. Treatment one T1 (control), fed basal diets supplemented with + 0.1% DCP were used, treatment two T2 (basal diet supplemented with 1500 FTU/Kg phytase + 0.1% DCP) and treatment three T3 (basal diet supplemented with 1500 FTU/Kg). Results showed significant (P≤0.05) differences in feed consumption (FC), body weight (BW), body weight gain (BWG) and feed conversion ratio (FCR), where T3 recorded the best results. Some gastrointestinal tract (GIT) organs (esophagus, proventriculus, small and large intestine, liver and caeca) and abdominal fat pads were significantly (P≤0.05) different in their weights; but no significant (P≥0.05) differences in gizzards and hearts weights. There were significant (P≤0.05) differences in lengths of proventriculus, small and large intestines; no significant (P≥0.05) differences were found in lengths of esophagus and caeca. There were significant (P≤0.05) differences in meat chemical properties, (DM%, Ash%, EE%, Ca% and P%) of the breast muscle. However, no significant (P≥0.05) differences in meat sensory traits (taste, flavor color and tenderness) and mortality rates were found. Significant (P≤0.05) differences were found in tibia bone chemical and physical properties (weight, length, thickness of the medial wall, the lateral wall and the medullary canal diameter) and chemical composition of manure where T3 had the best results. The economics appraisal recorded significant (P≤0.05) differences where T3 had the least cost and highest revenue. The results reveal that using (1500FTU/Kg) phytase without adding DCP is the best for performance parameters and economic appraisal and reduced environmental pollution.
{"title":"EFFICACY OF SUPPLEMENTATION OF PHYTASE ENZYME TO BROILER DIETS WITH OR WITHOUT DI-CALCIUM PHOSPHATE ON PERFORMANCE AND ECONOMIC APPRAISAL","authors":"S. Ali","doi":"10.21608/epsj.2021.182510","DOIUrl":"https://doi.org/10.21608/epsj.2021.182510","url":null,"abstract":"One hundred and eight male one-day age broiler chicks (Ross 308) were used in a 42-day experiment with objectives to study the effect of supplementing phytase with or without added di-calcium phosphate (DCP) to broiler chickens’ diets on their performance, carcass characteristics and economic appraisal. The birds were allocated to three treatments in a completely randomized design (CRD) with three replicates each. Treatment one T1 (control), fed basal diets supplemented with + 0.1% DCP were used, treatment two T2 (basal diet supplemented with 1500 FTU/Kg phytase + 0.1% DCP) and treatment three T3 (basal diet supplemented with 1500 FTU/Kg). Results showed significant (P≤0.05) differences in feed consumption (FC), body weight (BW), body weight gain (BWG) and feed conversion ratio (FCR), where T3 recorded the best results. Some gastrointestinal tract (GIT) organs (esophagus, proventriculus, small and large intestine, liver and caeca) and abdominal fat pads were significantly (P≤0.05) different in their weights; but no significant (P≥0.05) differences in gizzards and hearts weights. There were significant (P≤0.05) differences in lengths of proventriculus, small and large intestines; no significant (P≥0.05) differences were found in lengths of esophagus and caeca. There were significant (P≤0.05) differences in meat chemical properties, (DM%, Ash%, EE%, Ca% and P%) of the breast muscle. However, no significant (P≥0.05) differences in meat sensory traits (taste, flavor color and tenderness) and mortality rates were found. Significant (P≤0.05) differences were found in tibia bone chemical and physical properties (weight, length, thickness of the medial wall, the lateral wall and the medullary canal diameter) and chemical composition of manure where T3 had the best results. The economics appraisal recorded significant (P≤0.05) differences where T3 had the least cost and highest revenue. The results reveal that using (1500FTU/Kg) phytase without adding DCP is the best for performance parameters and economic appraisal and reduced environmental pollution.","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89455854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.21608/epsj.2021.182744
Gameel Al-Maktari
أجريت التجربة لدراسة تأثير الأجسام المضادة (الجلوبيولينات المناعية IgY) المتخصصة المنتجة في صفار البيض ضد بکتيريا الايشريشيا کولاى حيث تم حقن دجاج بياض عند الاعمار 28 ، 30 و32 أسبوع بمستضدات بکتيريا القولون الايشريشيا کولاى الميتة لتحفيزها على أنتاج الأجسام المضادة المتخصصة. جمعت عينات دم من دجاج التجربة قبل وبعد عملية التحصين التجريبية. وجمع البيض المنتج لمدة أسبوعين قبل إجراء عملية التحصين وکذلک جمع البيض المنتج من دجاج التجربة بعد انتهاء عملية التحصين بالمستضدات لمدة ثلاثة أسابيع، وتم عزل الجلوبيولينات المناعية (IgY) المنتجة من صفار البيض المنتج من دجاج التجربة باستخدام طريقة تخفيف الماء. تم تقدير کمية الجلوبيولينات المناعية النقية المنتجة ودراسة تأثيرها ضد بکتيريا الايشريشيا کولاى من خلال تجربة منع النمو Growth inhibition assay)) في المختبرIn-vitro))، حيث استخدمت نفس بکتيريا الايشريشيا کولاى التي استعملت کمستضدات لتحصين دجاج التجربة. تبين من نتائج الدراسة حدوث تفاعل مناعي ايجابي بين الأجسام المضادة المنتجة الموجودة والمستضدات المحضرة من بکتيريا الايشريشيا کولاى عند إجراء اختبار التلازن (Slide Agglutination Test). وتبين أن کمية الأجسام المضادة النقية والتي تم عزلها من صفار البيض في هـذه الدراسة تراوحت بـين 0.04-0.06 جرام/ صفار، کما تبين عدم تأثير الأجسام المضادة المتخصصة المنتجة ضد بکتيريا الايشريشيا کولاى في بيئة الأوساط السائلة خلال الفترة 0- 2 ساعة من التحضين، بينما لوحظ خلال الفترة 2-4 ساعات من التحضين اختلاف في معدل نمو بکتيريا الايشريشيا المحضنة مع الأجسام المضادة المتخصصة. ولوحظ بعد مرور 6 ساعات من التحضين أن معدل نمو بکتيريا الايشريشيا کولاى المحضنة مع الأجسام المضادة المتخصصة قد انخفض وبشکل واضح مقارنة بمعدل نمو البکتريا المتزايد بأوساط المجموعة المقارنة، إذ بلغ لوغاريتم العدد الکلى للبکتيريا cfu/ml 0.2و1.2 في الأوساط السائلة المحضنة، وذلک على التوالي. وتناقص معدل نمو بکتيريا الايشريشيا کولاى المحضنة مع الأجسام المضادة المتخصصة بحوالي 20% من معدل نمو البکتريا في المجموعة المقارنة.ولقد استنتج من الدراسة إمکانية انتاج الاجسام المضادة (IGY) المتخصصة ضد الاشريشيا کولاى من صفار بيض الدجاج المحقون في عضلة الصدر على عمر 28 أسبوع ببکتيريا الاشريشيا کولاى، وقدرة وفعالية الاجسام المضادة المتخصصة المستخلصة من صفار البيض على تثبيط نمو الاشريشيا کولاى في الأوساط السائلة في المختبر، کما يمکن ان يکون لهذه الاجسام المضادة القدرة على تخفيض استعمار بکتيريا الاشريشيا کولاى المرضية للخلايا المعوية في الدجاج. إمکانية قطاع الدواجن الاستفادة من استخدام الاجسام المضادة المنتجة في صفار بيض الدجاج في مکافحة الجراثيم المرضية المعدية والتي لا تستجيب او تقاوم بعض المضادات الحيوية. وتوصي الدراسة بعمل المزيد من التجارب لإنتاج الاجسام المضادة المتخصصة لبکتيريا الاشريشيا کولاى ودراسة قدرتها على تثبيط نمو البکتيريا على اغشية أمعاء الدجاج ودراسة إمکانية استخدامها في نطاق تجاري.
{"title":"انتأث رَ انمثبظ نلاخساو انمضادة نصفار ب ضَ انذخاج (IGY) عهي نمو بکت رَ اٍ الاشر شٍ اَ کولاى خم مَ عباس احمذ انمقطر *ً، محمذ عبذ انحم ذَ عمر**","authors":"Gameel Al-Maktari","doi":"10.21608/epsj.2021.182744","DOIUrl":"https://doi.org/10.21608/epsj.2021.182744","url":null,"abstract":"أجريت التجربة لدراسة تأثير الأجسام المضادة (الجلوبيولينات المناعية IgY) المتخصصة المنتجة في صفار البيض ضد بکتيريا الايشريشيا کولاى حيث تم حقن دجاج بياض عند الاعمار 28 ، 30 و32 أسبوع بمستضدات بکتيريا القولون الايشريشيا کولاى الميتة لتحفيزها على أنتاج الأجسام المضادة المتخصصة. جمعت عينات دم من دجاج التجربة قبل وبعد عملية التحصين التجريبية. وجمع البيض المنتج لمدة أسبوعين قبل إجراء عملية التحصين وکذلک جمع البيض المنتج من دجاج التجربة بعد انتهاء عملية التحصين بالمستضدات لمدة ثلاثة أسابيع، وتم عزل الجلوبيولينات المناعية (IgY) المنتجة من صفار البيض المنتج من دجاج التجربة باستخدام طريقة تخفيف الماء. تم تقدير کمية الجلوبيولينات المناعية النقية المنتجة ودراسة تأثيرها ضد بکتيريا الايشريشيا کولاى من خلال تجربة منع النمو Growth inhibition assay)) في المختبرIn-vitro))، حيث استخدمت نفس بکتيريا الايشريشيا کولاى التي استعملت کمستضدات لتحصين دجاج التجربة. تبين من نتائج الدراسة حدوث تفاعل مناعي ايجابي بين الأجسام المضادة المنتجة الموجودة والمستضدات المحضرة من بکتيريا الايشريشيا کولاى عند إجراء اختبار التلازن (Slide Agglutination Test). وتبين أن کمية الأجسام المضادة النقية والتي تم عزلها من صفار البيض في هـذه الدراسة تراوحت بـين 0.04-0.06 جرام/ صفار، کما تبين عدم تأثير الأجسام المضادة المتخصصة المنتجة ضد بکتيريا الايشريشيا کولاى في بيئة الأوساط السائلة خلال الفترة 0- 2 ساعة من التحضين، بينما لوحظ خلال الفترة 2-4 ساعات من التحضين اختلاف في معدل نمو بکتيريا الايشريشيا المحضنة مع الأجسام المضادة المتخصصة. ولوحظ بعد مرور 6 ساعات من التحضين أن معدل نمو بکتيريا الايشريشيا کولاى المحضنة مع الأجسام المضادة المتخصصة قد انخفض وبشکل واضح مقارنة بمعدل نمو البکتريا المتزايد بأوساط المجموعة المقارنة، إذ بلغ لوغاريتم العدد الکلى للبکتيريا cfu/ml 0.2و1.2 في الأوساط السائلة المحضنة، وذلک على التوالي. وتناقص معدل نمو بکتيريا الايشريشيا کولاى المحضنة مع الأجسام المضادة المتخصصة بحوالي 20% من معدل نمو البکتريا في المجموعة المقارنة.ولقد استنتج من الدراسة إمکانية انتاج الاجسام المضادة (IGY) المتخصصة ضد الاشريشيا کولاى من صفار بيض الدجاج المحقون في عضلة الصدر على عمر 28 أسبوع ببکتيريا الاشريشيا کولاى، وقدرة وفعالية الاجسام المضادة المتخصصة المستخلصة من صفار البيض على تثبيط نمو الاشريشيا کولاى في الأوساط السائلة في المختبر، کما يمکن ان يکون لهذه الاجسام المضادة القدرة على تخفيض استعمار بکتيريا الاشريشيا کولاى المرضية للخلايا المعوية في الدجاج. إمکانية قطاع الدواجن الاستفادة من استخدام الاجسام المضادة المنتجة في صفار بيض الدجاج في مکافحة الجراثيم المرضية المعدية والتي لا تستجيب او تقاوم بعض المضادات الحيوية. وتوصي الدراسة بعمل المزيد من التجارب لإنتاج الاجسام المضادة المتخصصة لبکتيريا الاشريشيا کولاى ودراسة قدرتها على تثبيط نمو البکتيريا على اغشية أمعاء الدجاج ودراسة إمکانية استخدامها في نطاق تجاري.","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74147231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-01DOI: 10.21608/EPSJ.2021.160064
S. Youssef, M. Abdelfattah, Marwa M. Bahnas
The current experiment was carried out in farm nearby Fayoum research station to study effect of different seasons on growth performance of broiler chicks and detect early indicators for supplementing broilers flocks with antioxidant and immune enhancer. Four flocks from Arbor Acres broiler chicks were reared during summer, autumn, winter, and spring seasons in open side system. Productive performance parameters, complete blood count, antibody titers against Newcastle (NDV), antibody titers against avian influenza (H5N1) and some antioxidant parameters were measured. The following results were obtained: Body weight and body weight gain recorded significantly the highest values during spring seasons but the highest (P≤0.05) feed intake value was recorded during winter seasons and the best feed conversion value was recorded during autumn (P≤0.05). Total leukocytes count, heterophilus (H), lymphocyte (L) and H/L ratio were not affected by different seasons. Antibody titers against NDV and H5N1 record the highest significant values during summer season while the worst significant antioxidant status recorded during summer season. In contrast during winter values of antibody titers against NDV and H5N1 were significantly the worst but antioxidant parameters recorded significantly the best values. The results of the current study suggested that during winter flocks may need double doses from NDV and H5N1vaccines. However, during summer and autumn seasons, increasing antioxidant supplementation in diets or even drinking water is recommended.
{"title":"EFFECT OF DIFFERENT SEASONS ON GROWTH PERFORMANCE, IMMUNE RESPONSES AND ANTIOXIDANT STATUS OF BROILER CHICKENS","authors":"S. Youssef, M. Abdelfattah, Marwa M. Bahnas","doi":"10.21608/EPSJ.2021.160064","DOIUrl":"https://doi.org/10.21608/EPSJ.2021.160064","url":null,"abstract":"The current experiment was carried out in farm nearby Fayoum research station to study effect of different seasons on growth performance of broiler chicks and detect early indicators for supplementing broilers flocks with antioxidant and immune enhancer. Four flocks from Arbor Acres broiler chicks were reared during summer, autumn, winter, and spring seasons in open side system. Productive performance parameters, complete blood count, antibody titers against Newcastle (NDV), antibody titers against avian influenza (H5N1) and some antioxidant parameters were measured. The following results were obtained: Body weight and body weight gain recorded significantly the highest values during spring seasons but the highest (P≤0.05) feed intake value was recorded during winter seasons and the best feed conversion value was recorded during autumn (P≤0.05). Total leukocytes count, heterophilus (H), lymphocyte (L) and H/L ratio were not affected by different seasons. Antibody titers against NDV and H5N1 record the highest significant values during summer season while the worst significant antioxidant status recorded during summer season. In contrast during winter values of antibody titers against NDV and H5N1 were significantly the worst but antioxidant parameters recorded significantly the best values. The results of the current study suggested that during winter flocks may need double doses from NDV and H5N1vaccines. However, during summer and autumn seasons, increasing antioxidant supplementation in diets or even drinking water is recommended.","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90274321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-01DOI: 10.21608/EPSJ.2021.159930
Noha Abd El-Azeem, Hemat Abdel Magied
{"title":"EFFECT OF HYDROLYSABLE TANNIN AND GRAPE SEED EXTRACT SUPPLEMENTATION ON GROWTH PERFORMANCE, ANTIOXIDATIVE STATUS AND IMMUNE RESPONSE OF GROWING RABBITS DURING SUMMER SEASON.","authors":"Noha Abd El-Azeem, Hemat Abdel Magied","doi":"10.21608/EPSJ.2021.159930","DOIUrl":"https://doi.org/10.21608/EPSJ.2021.159930","url":null,"abstract":"","PeriodicalId":11662,"journal":{"name":"Egyptian Poultry Science Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89420761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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