Pub Date : 2023-04-02DOI: 10.3329/bjas.v52i1.65358
B. Dey, S. Sarker, A. Roy, RA Runa
The sense of taste has a key role in nutrient sensing and food intake in poultry. A standardized and simple method for the determination of tastant-detection thresholds is required for chemosensory research in poultry as well poultry feed formulation. The goal of the study was to evaluate the effect of aging on the behavioural taste sensitivities of broiler chickens in order to improve the efficiency of feeding through correct feed selection and ration preparation. It especially aimed to establish the threshold concentrations of five different taste components (sweet, sour, bitter, salt, and umami). Total of 15 feeding trials for broiler chicks of various ages were performed. For each taste quality, the powdered flavor active ingredients for sweet, sour, bitter, salty, and umami were selected. The actual drinking volume of water and taste solution was identified. Because the p values were less than 0.05, the concentrations of sucrose (100 mM), citric acid (50 mM), sodium chloride (20 mM), caffeine (10 mM), and mono-sodium glutamate (MSG) (100 mM) were significant. Taken together, it may be concluded that the taste active chemical sensitivity was very "concentration-dependent" manner for the aforementioned concentrations and that younger chickens have a greater sense of taste than older birds. Bangladesh Journal of Animal Science 52 (1): 22-28, March 2023
{"title":"Detection of taste thresholds at different growth stages of broilers","authors":"B. Dey, S. Sarker, A. Roy, RA Runa","doi":"10.3329/bjas.v52i1.65358","DOIUrl":"https://doi.org/10.3329/bjas.v52i1.65358","url":null,"abstract":"The sense of taste has a key role in nutrient sensing and food intake in poultry. A standardized and simple method for the determination of tastant-detection thresholds is required for chemosensory research in poultry as well poultry feed formulation. The goal of the study was to evaluate the effect of aging on the behavioural taste sensitivities of broiler chickens in order to improve the efficiency of feeding through correct feed selection and ration preparation. It especially aimed to establish the threshold concentrations of five different taste components (sweet, sour, bitter, salt, and umami). Total of 15 feeding trials for broiler chicks of various ages were performed. For each taste quality, the powdered flavor active ingredients for sweet, sour, bitter, salty, and umami were selected. The actual drinking volume of water and taste solution was identified. Because the p values were less than 0.05, the concentrations of sucrose (100 mM), citric acid (50 mM), sodium chloride (20 mM), caffeine (10 mM), and mono-sodium glutamate (MSG) (100 mM) were significant. Taken together, it may be concluded that the taste active chemical sensitivity was very \"concentration-dependent\" manner for the aforementioned concentrations and that younger chickens have a greater sense of taste than older birds.\u0000Bangladesh Journal of Animal Science 52 (1): 22-28, March 2023","PeriodicalId":8873,"journal":{"name":"Bangladesh Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78748159","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 : 2023-04-02DOI: 10.3329/bjas.v52i1.65359
S. Hoque, S. Ahmed, MM Islam, M. Hossain, M. Habiba
With the advancement of age in mammalian females, the reproductive ability is severely compromised, and infertility occurs. Black cumin seeds and green tea are believed to have pro-oxidant effects against various age-related disorders. Using mice model, this study was conducted to elucidate the impact of black cumin and green tea on fertility and offspring morphology of mammalian females during reproductive aging. For this, twenty aged female mice (£180 days old) were served either with or without black cumin through feed, green tea through drinking water, or their combination. The mice were regularly checked for estrus cycle and mated with males. Similar reproductive patterns were observed in all the groups up to 285 days. After that, weak estrus or anestrus was observed in the control group; however, the active reproductive period was observed to extend up to 350, 375, and 432 days in mice treated with black cumin, green tea, and their combination, respectively. Accordingly, the treatment of black cumin and green tea significantly increased the average number of pups per litter, having comparatively higher birth weight and weaning weight. Moreover, the duration of hair development and eye-opening were significantly reduced in all treated mother. The serum immunoglobulin results revealed higher immunity in mice treated with black cumin and green tea treatment either separately or in combination. Similarly, healthy ovarian follicles with a compact layer of granulosa cells and expanded cumulus cell layer surrounded by oocytes in all the treated mice compared to those of untreated mice. These findings will be helpful for developing breeding strategies during the reproductive aging of mammalian females. Bangladesh Journal of Animal Science 52 (1): 29-37, March 2023
{"title":"Impact of black cumin and green tea on fertility, immunity and offspring morphology during reproductive aging in mice","authors":"S. Hoque, S. Ahmed, MM Islam, M. Hossain, M. Habiba","doi":"10.3329/bjas.v52i1.65359","DOIUrl":"https://doi.org/10.3329/bjas.v52i1.65359","url":null,"abstract":"With the advancement of age in mammalian females, the reproductive ability is severely compromised, and infertility occurs. Black cumin seeds and green tea are believed to have pro-oxidant effects against various age-related disorders. Using mice model, this study was conducted to elucidate the impact of black cumin and green tea on fertility and offspring morphology of mammalian females during reproductive aging. For this, twenty aged female mice (£180 days old) were served either with or without black cumin through feed, green tea through drinking water, or their combination. The mice were regularly checked for estrus cycle and mated with males. Similar reproductive patterns were observed in all the groups up to 285 days. After that, weak estrus or anestrus was observed in the control group; however, the active reproductive period was observed to extend up to 350, 375, and 432 days in mice treated with black cumin, green tea, and their combination, respectively. Accordingly, the treatment of black cumin and green tea significantly increased the average number of pups per litter, having comparatively higher birth weight and weaning weight. Moreover, the duration of hair development and eye-opening were significantly reduced in all treated mother. The serum immunoglobulin results revealed higher immunity in mice treated with black cumin and green tea treatment either separately or in combination. Similarly, healthy ovarian follicles with a compact layer of granulosa cells and expanded cumulus cell layer surrounded by oocytes in all the treated mice compared to those of untreated mice. These findings will be helpful for developing breeding strategies during the reproductive aging of mammalian females.\u0000Bangladesh Journal of Animal Science 52 (1): 29-37, March 2023","PeriodicalId":8873,"journal":{"name":"Bangladesh Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89363050","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 : 2023-04-02DOI: 10.3329/bjas.v52i1.65362
S. Islam, M. Rahman, M. Hossain, Md. Mizanur Rahman, Mzu Kamal
Industrial effluent (IE) is a serious threat to human, plant and aquatic lives. This study was carried out to assess the impact of IE on morphological characteristics of maize fodder at different stages of growth. The pot experiment was laid out in a Completely Randomized Design using five treatments with eight replications at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur and IE was collected from the discharge points of the nearest garments located at BSMRAU. The treatments were T1, 100% FW (fresh water); T2, 75% FW + 25% IE; T3, 50% FW + 50% IE; T4, 25% FW + 75% IE; T5, 100% IE. The results indicated that IE decreased plant height and plant dry weight for all stages. Leaves number was reduced at the maturity stage in the IE treatments. No influence was observed on leaf length by IE. Higher concentrations of IE also influenced smaller leaf width at the vegetative stage. Root length was reduced for the application of IE at the maturity and vegetative stage. Root dry weight was higher for T1 and T3 at the flowering stage and T3 at the maturity stage. Hence, it may be concluded that IE had negative effect on the morphological characteristics of maize fodder. Bangladesh Journal of Animal Science 52 (1): 38-44, March 2023
{"title":"Impact of industrial effluent on morphological characteristics of maize fodder","authors":"S. Islam, M. Rahman, M. Hossain, Md. Mizanur Rahman, Mzu Kamal","doi":"10.3329/bjas.v52i1.65362","DOIUrl":"https://doi.org/10.3329/bjas.v52i1.65362","url":null,"abstract":"Industrial effluent (IE) is a serious threat to human, plant and aquatic lives. This study was carried out to assess the impact of IE on morphological characteristics of maize fodder at different stages of growth. The pot experiment was laid out in a Completely Randomized Design using five treatments with eight replications at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur and IE was collected from the discharge points of the nearest garments located at BSMRAU. The treatments were T1, 100% FW (fresh water); T2, 75% FW + 25% IE; T3, 50% FW + 50% IE; T4, 25% FW + 75% IE; T5, 100% IE. The results indicated that IE decreased plant height and plant dry weight for all stages. Leaves number was reduced at the maturity stage in the IE treatments. No influence was observed on leaf length by IE. Higher concentrations of IE also influenced smaller leaf width at the vegetative stage. Root length was reduced for the application of IE at the maturity and vegetative stage. Root dry weight was higher for T1 and T3 at the flowering stage and T3 at the maturity stage. Hence, it may be concluded that IE had negative effect on the morphological characteristics of maize fodder.\u0000Bangladesh Journal of Animal Science 52 (1): 38-44, March 2023","PeriodicalId":8873,"journal":{"name":"Bangladesh Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88294071","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 : 2023-04-02DOI: 10.3329/bjas.v52i1.65356
A. Adeoye, O. Oyeleye, R. Olorunsola, P. Akinleye, JB Ojajuni
This study was carried out to evaluate the effect of the duration of storage of ISA brown eggs at room temperature on the nutritional composition and quality of eggs. A total of one hundred and twenty (120) freshly laid eggs by 36 weeks old ISA brown layers were randomly collected and stored at room temperature for 21 days. On each sampling day (at week 0, week 1, week 2, and week 3 of storage), 30 eggs were broken to determine internal and external egg quality traits, proximate composition, and mineral profile. Collected data were subjected to statistical analysis. Duration of storage had a significant effect (p<0.05) on egg traits, proximate components, and mineral profile except for egg shape index and shell thickness. The overall egg weight, egg length, egg width, shape index, shell weight, shell ratio, and shell thickness were 56.82g, 5.69mm, 4.43mm, 78.02, 7.45g, 13.11, and 0.28mm respectively, while yolk height, albumen height, yolk weight, albumen weight, albumen ratio, yolk ratio, and Haugh unit were 13.55mm, 4.97mm, 16.32g, 33.06g, 58.11, 28.82 and 67.50% respectively. The overall means for moisture, crude protein, ash, fat, and carbohydrate were 76.27%, 12.06%, and 1.83%, 4.62%, and 4.37% respectively. Most of the minerals increased in value as the eggs increased in age. The duration of storage of eggs affected the egg quality, proximate components, and mineral profile as these parameters determine acceptability by consumers. Bangladesh Journal of Animal Science 52 (1): 15-21, March 2023
{"title":"Storage duration impacts on nutritional composition and quality of table eggs","authors":"A. Adeoye, O. Oyeleye, R. Olorunsola, P. Akinleye, JB Ojajuni","doi":"10.3329/bjas.v52i1.65356","DOIUrl":"https://doi.org/10.3329/bjas.v52i1.65356","url":null,"abstract":"This study was carried out to evaluate the effect of the duration of storage of ISA brown eggs at room temperature on the nutritional composition and quality of eggs. A total of one hundred and twenty (120) freshly laid eggs by 36 weeks old ISA brown layers were randomly collected and stored at room temperature for 21 days. On each sampling day (at week 0, week 1, week 2, and week 3 of storage), 30 eggs were broken to determine internal and external egg quality traits, proximate composition, and mineral profile. Collected data were subjected to statistical analysis. Duration of storage had a significant effect (p<0.05) on egg traits, proximate components, and mineral profile except for egg shape index and shell thickness. The overall egg weight, egg length, egg width, shape index, shell weight, shell ratio, and shell thickness were 56.82g, 5.69mm, 4.43mm, 78.02, 7.45g, 13.11, and 0.28mm respectively, while yolk height, albumen height, yolk weight, albumen weight, albumen ratio, yolk ratio, and Haugh unit were 13.55mm, 4.97mm, 16.32g, 33.06g, 58.11, 28.82 and 67.50% respectively. The overall means for moisture, crude protein, ash, fat, and carbohydrate were 76.27%, 12.06%, and 1.83%, 4.62%, and 4.37% respectively. Most of the minerals increased in value as the eggs increased in age. The duration of storage of eggs affected the egg quality, proximate components, and mineral profile as these parameters determine acceptability by consumers.\u0000Bangladesh Journal of Animal Science 52 (1): 15-21, March 2023","PeriodicalId":8873,"journal":{"name":"Bangladesh Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84940196","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 : 2023-04-02DOI: 10.3329/bjas.v52i1.65311
Z. Naim, M. Asaduzzaman, M. Akter, M. Islam
Livestock plays a crucial part in the global food chain; however, its production and supply could be jeopardized due to climate change-related risks. Therefore, this study gathered information regarding adverse climatic livestock production, adaptation, and mitigation strategies to the hazards' impact, finding research opportunities, and suggesting ideas for policymaking. The impact of increased temperature, altered rainfall, drought, flood, riverbank erosion, salinity, natural calamities like cyclones, etc. on livestock production was reviewed and reported in this article. They are responsible for reducing the availability and quality of fodder and water, declining livestock growth and reproduction, spreading diseases, and posing a threat to animal genetic resources. On the other hand, Bangladesh is anticipated to descend under water as a result of sea level rise resulting in a saline incursion into cropland and freshwater, drastically affecting crop and livestock production, especially in coastal regions. The impact of the hazards can be reduced through following some mitigation and adaptation strategies such as adopting and improving local breeds, practicing mixed farming systems, embracing climate smart livestock management systems, providing insurances for the losses to farmers, and so on. Feeding practices can be altered during flood by providing tree leaves, UMB, unconventional feeds. In conclusion, this review provided a compiled knowledge of climate change affecting livestock production, identifies the research gaps and suggests further research opportunities in this sector. Bangladesh Journal of Animal Science 52 (1): 1-14, March 2023
{"title":"Impact of climate change on livestock production in Bangladesh - A review","authors":"Z. Naim, M. Asaduzzaman, M. Akter, M. Islam","doi":"10.3329/bjas.v52i1.65311","DOIUrl":"https://doi.org/10.3329/bjas.v52i1.65311","url":null,"abstract":"Livestock plays a crucial part in the global food chain; however, its production and supply could be jeopardized due to climate change-related risks. Therefore, this study gathered information regarding adverse climatic livestock production, adaptation, and mitigation strategies to the hazards' impact, finding research opportunities, and suggesting ideas for policymaking. The impact of increased temperature, altered rainfall, drought, flood, riverbank erosion, salinity, natural calamities like cyclones, etc. on livestock production was reviewed and reported in this article. They are responsible for reducing the availability and quality of fodder and water, declining livestock growth and reproduction, spreading diseases, and posing a threat to animal genetic resources. On the other hand, Bangladesh is anticipated to descend under water as a result of sea level rise resulting in a saline incursion into cropland and freshwater, drastically affecting crop and livestock production, especially in coastal regions. The impact of the hazards can be reduced through following some mitigation and adaptation strategies such as adopting and improving local breeds, practicing mixed farming systems, embracing climate smart livestock management systems, providing insurances for the losses to farmers, and so on. Feeding practices can be altered during flood by providing tree leaves, UMB, unconventional feeds. In conclusion, this review provided a compiled knowledge of climate change affecting livestock production, identifies the research gaps and suggests further research opportunities in this sector.\u0000Bangladesh Journal of Animal Science 52 (1): 1-14, March 2023","PeriodicalId":8873,"journal":{"name":"Bangladesh Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83930048","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 : 2022-12-26DOI: 10.3329/bjas.v51i4.63567
A. Emran, B. Dey, SC Das, B. Ray, Z. Rahaman
Various factors have been reported that affect the growth performance of layers, such as genetics, nutrition, environment, and disease. Attaining appropriate growth is essential to ensure profit. The present study was conducted to make comparative analyses of the growth performance of four commonly available layer strains in Bangladesh. A total number of 400-layer day-old chicks (DOCs), 100 from each of NOVOgen brown, ISA brown, Hy-Line brown and Bovans brown were used for the experiment. The birds were equally divided and randomly assigned to 4 treatments having 4 replications in each treatment comprising 25 birds per replication. All birds fed diet with similar composition and provided with the identical care and management up to 16 weeks of age. The results from this study revealed that there were no significant differences among the growth performances (weekly body weight, feed intake, uniformity and survivability) of four commonly available layer strains and all the strains followed the standard very closely. There were also no statistical differences based on the economic parameters of the strains compared in this study. Taken together, it may be concluded that the layer strains available in Bangladesh are highly competitive and suitable for local climatic conditions and the farmers can rely any of them. Bangladesh Journal of Animal Science 51 (4): 163-168
{"title":"Comparison of the growth performance of available layer strains in Bangladesh","authors":"A. Emran, B. Dey, SC Das, B. Ray, Z. Rahaman","doi":"10.3329/bjas.v51i4.63567","DOIUrl":"https://doi.org/10.3329/bjas.v51i4.63567","url":null,"abstract":"Various factors have been reported that affect the growth performance of layers, such as genetics, nutrition, environment, and disease. Attaining appropriate growth is essential to ensure profit. The present study was conducted to make comparative analyses of the growth performance of four commonly available layer strains in Bangladesh. A total number of 400-layer day-old chicks (DOCs), 100 from each of NOVOgen brown, ISA brown, Hy-Line brown and Bovans brown were used for the experiment. The birds were equally divided and randomly assigned to 4 treatments having 4 replications in each treatment comprising 25 birds per replication. All birds fed diet with similar composition and provided with the identical care and management up to 16 weeks of age. The results from this study revealed that there were no significant differences among the growth performances (weekly body weight, feed intake, uniformity and survivability) of four commonly available layer strains and all the strains followed the standard very closely. There were also no statistical differences based on the economic parameters of the strains compared in this study. Taken together, it may be concluded that the layer strains available in Bangladesh are highly competitive and suitable for local climatic conditions and the farmers can rely any of them.\u0000Bangladesh Journal of Animal Science 51 (4): 163-168","PeriodicalId":8873,"journal":{"name":"Bangladesh Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74330976","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 : 2022-12-26DOI: 10.3329/bjas.v51i4.63564
A. Rahman, Mansur Ali, M. Sarkar, Ma Islam, N. Saha, M. Hasan, T. Chanda
The experiment was carried out in the south-west region of Bangladesh to understand the general goat husbandry practices and the socioeconomic significance of goat farmers. Through a face-to-face interview with these rural farmers, information was collected from a total of 100 goat farmers at random in five Upazila in the Kustia district. The majority of the farmers were illiterate and middle-class, and their main source of income was agriculture. In this region, 14% of farmers involved in goat rearing mostly raised Black Bengal goats (84%) and crossbred goats (9%). Both buck and doe were reared by 67% of the farmers. Most of the farmers (92%) practiced a semi-intensive rearing system. Among the farmers, 88% did not use bamboo or wooden platform inside houses. The farmers fed their goats green grass, green grass with straw and green grass with concentrates at 70%, 11%, and 19%, respectively. Only Napier Pakchong (43%) and German (22%) fodders were cultivated whereas 92% of farmers practiced no methods. On rainy days, the goats were nourished mostly on tree leaves and 93% of farmers did not practice their goats a winter bath. Most of the goats in the study areas were affected by pneumonia (59%) and PPR (24%) with pneumonia having a high mortality rate (28%). A good portion (87.67%) of farmers practiced vaccination against PPR. The burial method for disposal of carcasses was followed by 96% of farmers. Most of the farmers (92%) gave the anthelmintic drug to deworm their goats. These results suggested that proper training is essential for better rearing and management of goats. Bangladesh Journal of Animal Science, 51 (4): 138-144
{"title":"Socio-economic importance and rearing system of goat in south-western part of Bangladesh","authors":"A. Rahman, Mansur Ali, M. Sarkar, Ma Islam, N. Saha, M. Hasan, T. Chanda","doi":"10.3329/bjas.v51i4.63564","DOIUrl":"https://doi.org/10.3329/bjas.v51i4.63564","url":null,"abstract":"The experiment was carried out in the south-west region of Bangladesh to understand the general goat husbandry practices and the socioeconomic significance of goat farmers. Through a face-to-face interview with these rural farmers, information was collected from a total of 100 goat farmers at random in five Upazila in the Kustia district. The majority of the farmers were illiterate and middle-class, and their main source of income was agriculture. In this region, 14% of farmers involved in goat rearing mostly raised Black Bengal goats (84%) and crossbred goats (9%). Both buck and doe were reared by 67% of the farmers. Most of the farmers (92%) practiced a semi-intensive rearing system. Among the farmers, 88% did not use bamboo or wooden platform inside houses. The farmers fed their goats green grass, green grass with straw and green grass with concentrates at 70%, 11%, and 19%, respectively. Only Napier Pakchong (43%) and German (22%) fodders were cultivated whereas 92% of farmers practiced no methods. On rainy days, the goats were nourished mostly on tree leaves and 93% of farmers did not practice their goats a winter bath. Most of the goats in the study areas were affected by pneumonia (59%) and PPR (24%) with pneumonia having a high mortality rate (28%). A good portion (87.67%) of farmers practiced vaccination against PPR. The burial method for disposal of carcasses was followed by 96% of farmers. Most of the farmers (92%) gave the anthelmintic drug to deworm their goats. These results suggested that proper training is essential for better rearing and management of goats.\u0000Bangladesh Journal of Animal Science, 51 (4): 138-144","PeriodicalId":8873,"journal":{"name":"Bangladesh Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80385051","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 : 2022-12-26DOI: 10.3329/bjas.v51i4.63565
SJ Shathi, M. Khandoker, S. Debnath, R. Mahzabin, M. Jahan, MR Islam, A. Khatun
The present study evaluated slaughterhouse goat ovaries and follicles to know the effect of corpus luteum on the number and quality of ovarian follicles. For this study, 18 goat ovaries were collected and categorized as ovaries with corpus luteum (CL+) and without corpus luteum (CL–) group. Both groups were evaluated by morphometric measurements and histological observation. Among 18 ovaries, 12 ovaries contained CL (66.67%) and 6 ovaries were without CL (33.33%). Based on the morphometric measurements, the length and weight of the ovaries with CL were numerically higher (p>0.05) than those of the ovaries without CL. But the diameter of the ovaries with CL was significantly higher (p<0.05) than those of the ovaries without CL. In comparison to the CL– group, the CL+ group had a numerically higher (p>0.05) number of follicles with a diameter of 2-6 mm and > 6 mm. Histological analysis revealed that the total number of follicles (primary to antral) in CL– group (11.10±2.47) was numerically higher (p>0.05) than that of the CL+ group (10.07±2.47). Presence of primary (4.44±1.59), secondary (1.45±0.83) and antral (6.27±1.31) follicles were found higher (p>0.05) in ovaries without CL than that of with CL (4.05±1.61, 0.92±0.21, 5.08±1.21 respectively). On the other hand, the number of degenerated primary (1.29±0.56), secondary (0.52±0.14) and antral (3.38±0.66) follicles were found comparatively higher (p>0.05) in the ovaries with CL than that of the ovaries without CL (1.14±0.69, 0.37±0.19, 2.40±0.40 respectively). Since, there was no statistical difference found among the number of total and different types of follicles between ovaries with or without corpus luteum; hence, it may be summarized that both type of ovaries may be used for the retrieval of oocytes for further reproductive biotechnological study. Bangladesh Journal of Animal Science, 51 (4): 145-151
{"title":"Evaluation of goat ovaries and follicles by histological study","authors":"SJ Shathi, M. Khandoker, S. Debnath, R. Mahzabin, M. Jahan, MR Islam, A. Khatun","doi":"10.3329/bjas.v51i4.63565","DOIUrl":"https://doi.org/10.3329/bjas.v51i4.63565","url":null,"abstract":"The present study evaluated slaughterhouse goat ovaries and follicles to know the effect of corpus luteum on the number and quality of ovarian follicles. For this study, 18 goat ovaries were collected and categorized as ovaries with corpus luteum (CL+) and without corpus luteum (CL–) group. Both groups were evaluated by morphometric measurements and histological observation. Among 18 ovaries, 12 ovaries contained CL (66.67%) and 6 ovaries were without CL (33.33%). Based on the morphometric measurements, the length and weight of the ovaries with CL were numerically higher (p>0.05) than those of the ovaries without CL. But the diameter of the ovaries with CL was significantly higher (p<0.05) than those of the ovaries without CL. In comparison to the CL– group, the CL+ group had a numerically higher (p>0.05) number of follicles with a diameter of 2-6 mm and > 6 mm. Histological analysis revealed that the total number of follicles (primary to antral) in CL– group (11.10±2.47) was numerically higher (p>0.05) than that of the CL+ group (10.07±2.47). Presence of primary (4.44±1.59), secondary (1.45±0.83) and antral (6.27±1.31) follicles were found higher (p>0.05) in ovaries without CL than that of with CL (4.05±1.61, 0.92±0.21, 5.08±1.21 respectively). On the other hand, the number of degenerated primary (1.29±0.56), secondary (0.52±0.14) and antral (3.38±0.66) follicles were found comparatively higher (p>0.05) in the ovaries with CL than that of the ovaries without CL (1.14±0.69, 0.37±0.19, 2.40±0.40 respectively). Since, there was no statistical difference found among the number of total and different types of follicles between ovaries with or without corpus luteum; hence, it may be summarized that both type of ovaries may be used for the retrieval of oocytes for further reproductive biotechnological study.\u0000Bangladesh Journal of Animal Science, 51 (4): 145-151","PeriodicalId":8873,"journal":{"name":"Bangladesh Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76566354","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 : 2022-12-26DOI: 10.3329/bjas.v51i4.63568
MA Jahan, M. Khandoker, SJ Shathi, MY Ali, M. Mahbubul, A. Khatun, A. Apu
Reproductive anatomy is vital for successful reproductive management and has significance for application of assisted reproductive biotechnology. This study was carried out to characterize biometrically and histologically reproductive organs of 50 slaughtered female cattle (<3 years; n=25, 3 to ≤5 years; n=25). The measurements (length, weight and width) of the right segment of the studied reproductive organs were greater compared to the left segment. No significant difference (p>0.05) was observed between left and right ovary length, width and weight within and between age groups. The length of ovaries were 1.92±0.19 cm and 1.95±0.04 cm at <3 years; 2.16±0.21 cm and 2.17±0.19 cm at 3 to ≤5 years; width were 1.09±0.14 cm and 1.17±0.10 cm at <3 years and 1.31±0.10 cm and 1.46±0.11 cm at 3 to ≤5 years and the weight were 1.77±0.41 gm and 2.20±0.57 gm at <3 years; 1.79±0.45 gm and 2.54±0.14 gm at 3 to ≤5 years in the left and right ovaries, respectively. Oviduct length, width and weight did not differ significantly (p>0.05) between the left and right oviducts within and between the age groups. Oviduct length (16.36±0.78 and 17.58±0.97 cm), width (0.21±0.02 and 0.26±0.33 cm) and weight (0.72±0.03 and 0.81±0.11 gm) was found for the right oviduct at <3 years and 3 to ≤5 years and for left oviduct length, width and weight were 16.20±0.65 and 16.64±0.86 cm; 0.19±0.02 and 0.23±0.03 cm; and 0.69±0.04 and 0.79±0.13 gm, at <3 years and 3 to ≤5 years, respectively. However, uterine horn length differed significantly (p<0.05) between age groups in the left (16.18±1.18 vs 27.45±2.98 cm) and the right horn of the uterus (17.45±1.40 cm vs 28.35±2.88 cm). On the other hand, uterine horn width and weight were not differed significantly between the left and right segments within and between the age groups. Uterus body length and weight were significantly (p<0.05) higher at 3 to ≤5 years compared to <3 years old cow. The average weight, length and width of uterine body were 44.40±7.33 gm vs 21.49±5.91 gm; 7.89±0.61 cm vs 5.87±0.43 cm; 3.46±0.27 cm vs 2.76±0.34 cm at <3 years and 3 to ≤5 years, respectively The whole uterus weight was also differed significantly (p<0.05) at <3 years (47.18±14.92 gm) and 3 to ≤5 years (86.07±11.98 gm). Histological studies showed ideal characteristics of cattle oviduct and uterus. In nutshell, the right ovary was larger in length, wider in diameter, and heavier in weight as compared to left one in indigenous cattle of Bangladesh. Bangladesh Journal of Animal Science 51 (4): 169-177
生殖解剖学对成功的生殖管理至关重要，对辅助生殖生物技术的应用具有重要意义。本研究对50头屠宰母牛的生殖器官进行了生物统计学和组织学表征，观察了不同年龄组间左右卵巢长度、宽度和重量的差异(0.05)。各年龄组左右卵巢长度分别为1.92±0.19 cm和1.95±0.04 cm(0.05)。小于3岁和3 ~≤5岁的右侧输卵管长度分别为16.36±0.78和17.58±0.97 cm、宽度分别为0.21±0.02和0.26±0.33 cm、重量分别为0.72±0.03和0.81±0.11 gm，左侧输卵管长度、宽度和重量分别为16.20±0.65和16.64±0.86 cm;0.19±0.02 cm和0.23±0.03 cm;<3年和3 ~≤5年，分别为0.69±0.04和0.79±0.13 gm。而子宫角长度在左侧(16.18±1.18 vs 27.45±2.98 cm)和右侧(17.45±1.40 cm vs 28.35±2.88 cm)两组间差异有统计学意义(p<0.05)。另一方面，子宫角的宽度和重量在年龄组内和年龄组间无显著差异。3 ~≤5岁奶牛子宫体长和子宫重量显著高于<3岁奶牛(p<0.05)。子宫体平均重(44.40±7.33)gm vs(21.49±5.91)gm;7.89±0.61 cm vs 5.87±0.43 cm;<3岁组(47.18±14.92 gm)、3 ~≤5岁组(86.07±11.98 gm)全子宫重量与<3岁组(3.46±0.27 cm)、<3岁组(2.76±0.34 cm)全子宫重量差异均有统计学意义(p<0.05)。组织学研究显示了牛输卵管和子宫的理想特征。简而言之，与孟加拉国本土牛的左卵巢相比，右卵巢的长度更大，直径更宽，重量更重。动物科学杂志51 (4):169-177
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Pub Date : 2022-12-26DOI: 10.3329/bjas.v51i4.63566
D. Hidosa, KG Meskel
In Ethiopia, rangeland degradation is a severe environmental problem. To improve rangeland vegetation cover and support the rangeland-based livelihoods, it is imperative to repair degraded rangeland using different rehabilitative measures. This study was carried out to evaluate the effects of night cattle corralling impact on soil chemical parameters, herbaceous species compositions and biomass yield of degraded rangeland. To conduct the experiment, severely degraded (SD) and moderately degraded (MD) rangelands with an area size of 30m x10m (300m2) each was identified. Then, each of the selected rangeland types was separated into two paddocks with an area size of 10m x 15m (150 m2). The treatment paddocks of the severely and moderately degraded rangeland were treated by cattle impact tools corralling cattle every night in the paddock for one month (SDT1 and MDT1). While the second paddock in both rangeland types was used as a control without cattle impact tools (SDT2 and MDT2). A randomized complete block design was used and each treatment was replicated three times. The results showed that soil chemical parameters and herbaceous species compositions in both degraded rangeland paddocks treated with cattle impact tools (SDT1 and MDT1) changed significantly (p<0.05) than paddocks without cattle impact tools (SDT2 and MDT2). Likewise, there was an increased difference (p<0.05) in biomass yields of 2.98 ton/ha and 5.35ton/ha from severely and moderately degraded rangeland, respectively for paddocks treated with cattle impact tools (SDT1 and MDT2), compared to paddocks of biomass yield of 0.98 ton/ha and 2.78 ton/ha without cattle impact tools treatments for SDT2 and MDT2 respectively. Thus the result from this study emphasized the advantage of night cattle corralling impact tools for improved soil parameters and herbaceous species compositions of degraded rangeland. Hence, we concluded that employing cattle impact tools to restore degraded rangeland significantly improved soil physico-chemical properties, with ultimate effect on vegetation cover, vegetation compositions and herbaceous biomass yield, attributed from soil seed bank growth. Bangladesh Journal of Animal Science 51 (4): 152-162
在埃塞俄比亚，牧场退化是一个严重的环境问题。为了改善牧场植被覆盖，支持以牧场为基础的生计，必须采取不同的恢复措施来修复退化的牧场。本研究旨在评价夜间放牧对退化草地土壤化学参数、草本物种组成和生物量的影响。为了进行实验，我们选择了面积分别为30m x10m (300m2)的重度退化(SD)和中度退化(MD)的牧场。然后，将每种选择的牧场类型划分为两个面积为10m x 15m (150 m2)的围场。在重度和中度退化草地的处理围场，采用冲击牛工具每晚在围场放牧1个月(SDT1和MDT1)。而两种牧场类型中的第二个围场作为对照，不使用牛撞击工具(SDT2和MDT2)。采用随机完全区组设计，每个治疗重复3次。结果表明:与未使用牛类冲击工具(SDT2和MDT2)的退化草地围场相比，使用牛类冲击工具(SDT1和MDT1)的退化草地围场土壤化学参数和草本物种组成变化显著(p<0.05);同样，重度退化和中度退化牧场的生物量产量(SDT1和MDT2)与未处理SDT2和MDT2的0.98和2.78 t /ha相比，分别增加了2.98和5.35t /ha (p<0.05)。因此，本研究结果强调了夜间牛圈影响工具对改善退化草地土壤参数和草本物种组成的优势。因此，我们得出结论，利用牛的影响工具恢复退化的牧场显著改善了土壤的物理化学性质，最终影响了植被覆盖、植被组成和草本生物量，这归因于土壤种子库的生长。孟加拉动物科学杂志51 (4):152-162
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