Issah Bagulo, Abdul-Rahman Ibn Iddriss, Mohammed Abubakari, Victor Asiedu Nsor, Joshua Katusime
Gastro intestinal parasites are developing resistance to various commercial anthelminthics. Hence, the need to explore the efficacies of herbal plants against gastro-intestinal parasites. The study was therefore conducted to determine the efficacy of aqueous extract of Vernonia amygdalina leaf against strongyles and coccidia spp. in sheep.A total of 60 sheep were used for the study. The animals were randomly assigned to one of the four groups. Those in group A, B, C and D were given albendazole (ABZ), 10% aqueous V. amygdalina extract (BL10), 20% aqueous V. amygdalina extract (BL20) and 10ml distilled water (Dw) respectively. All four treatments were given orally, depending on the body weight of the animals, with the exception of the distilled water which was constant (10ml) for each animal. Fecal samples were collected from each sheep and examined using McMaster technique. The data were analyzed using R version 4.2. The study brought to light that the prevalence of strongyles in sheep was 70% in the study area at pre-treatment. BL10 had efficacies of 52.58% and 65.08% against strongyles and coccidia spp. respectively. BL20 produced similar anthelmintic effect against strongyles as albendazole. Strongyle spp. showed resistance against albendazole in the study area.
{"title":"Efficacy of aqueous extract of Vernonia amygdalina leaf against strongyle and coccidia infections in sheep","authors":"Issah Bagulo, Abdul-Rahman Ibn Iddriss, Mohammed Abubakari, Victor Asiedu Nsor, Joshua Katusime","doi":"10.1139/cjas-2023-0021","DOIUrl":"https://doi.org/10.1139/cjas-2023-0021","url":null,"abstract":"Gastro intestinal parasites are developing resistance to various commercial anthelminthics. Hence, the need to explore the efficacies of herbal plants against gastro-intestinal parasites. The study was therefore conducted to determine the efficacy of aqueous extract of Vernonia amygdalina leaf against strongyles and coccidia spp. in sheep.A total of 60 sheep were used for the study. The animals were randomly assigned to one of the four groups. Those in group A, B, C and D were given albendazole (ABZ), 10% aqueous V. amygdalina extract (BL10), 20% aqueous V. amygdalina extract (BL20) and 10ml distilled water (Dw) respectively. All four treatments were given orally, depending on the body weight of the animals, with the exception of the distilled water which was constant (10ml) for each animal. Fecal samples were collected from each sheep and examined using McMaster technique. The data were analyzed using R version 4.2. The study brought to light that the prevalence of strongyles in sheep was 70% in the study area at pre-treatment. BL10 had efficacies of 52.58% and 65.08% against strongyles and coccidia spp. respectively. BL20 produced similar anthelmintic effect against strongyles as albendazole. Strongyle spp. showed resistance against albendazole in the study area.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43689183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Heat stress adversely affects the litter traits of Landrace, the primary dam breed in Taiwan. This study aimed to evaluate the effects of heat stress during sow pregnancy with homogeneous and heterogeneous residuals to estimate the genetic parameters of the Taiwan Landrace. Performance records for 11,657 litters and weather data from 2008 to 2021 were collected. The climate effect was defined proportionally from cool to hot for climates 1 to 5. The homogeneous residual analysis showed that the heritabilities of the total number born (TNB) and number born alive (NBA) were 0.164 ± 0.014 and 0.111 ± 0.014 with residual variances of 10.338 and 9.164, respectively. The heterogeneous residual analysis showed that, the residual variances for TNB and NBA were 8.934-11.113 and 8.196-9.810, respectively. For TNB, the residual variance in the Herd-Year-Climate effect differed significantly in climate 1 from climates 3 to 5 (p < 0.01). In NBA, the residual variance was significantly lower in climates 1 and 2 than in climates 3 and 5 (p < 0.01). In conclusion, heritability was estimated for TNB and NBA. In addition, residual variances could interact with the climate effect in heterogeneous residual analysis.
{"title":"Does the climate influence the variance of residual in litter traits of Taiwan Landrace sows?","authors":"Kai-Hsiang Lin, Ruei-Syuan Wu, E. Lin","doi":"10.1139/cjas-2022-0113","DOIUrl":"https://doi.org/10.1139/cjas-2022-0113","url":null,"abstract":"Heat stress adversely affects the litter traits of Landrace, the primary dam breed in Taiwan. This study aimed to evaluate the effects of heat stress during sow pregnancy with homogeneous and heterogeneous residuals to estimate the genetic parameters of the Taiwan Landrace. Performance records for 11,657 litters and weather data from 2008 to 2021 were collected. The climate effect was defined proportionally from cool to hot for climates 1 to 5. The homogeneous residual analysis showed that the heritabilities of the total number born (TNB) and number born alive (NBA) were 0.164 ± 0.014 and 0.111 ± 0.014 with residual variances of 10.338 and 9.164, respectively. The heterogeneous residual analysis showed that, the residual variances for TNB and NBA were 8.934-11.113 and 8.196-9.810, respectively. For TNB, the residual variance in the Herd-Year-Climate effect differed significantly in climate 1 from climates 3 to 5 (p < 0.01). In NBA, the residual variance was significantly lower in climates 1 and 2 than in climates 3 and 5 (p < 0.01). In conclusion, heritability was estimated for TNB and NBA. In addition, residual variances could interact with the climate effect in heterogeneous residual analysis.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43484765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Md. Golam Kafi Afrose Mia, T. Winders, Eric M. Serum, S. Amat, B. Neville, C. Dahlen, David J. Smith, K. Swanson
To evaluate the effects of feeding hempseed cake on digestive enzymes, crossbred heifers ( n = 32; 494 ± 10 kg body weight) were fed diets containing 20% (dry matter basis) dried corn distillers grains plus solubles or hempseed cake for 111 days. There was greater ( P = 0.05) pancreatic mass relative to body weight in heifers fed hempseed cake. No differences ( P ≥ 0.19) in digestive enzyme activity in the pancreas (α-amylase, trypsin, and lipase) and jejunum (maltase, glucoamylase, and isomaltase) were observed between treatments. Our results suggest that feeding hempseed cake did not influence digestive enzyme activity.
{"title":"The effects of feeding hempseed cake on pancreatic and jejunal digestive enzymatic activity in finishing heifers","authors":"Md. Golam Kafi Afrose Mia, T. Winders, Eric M. Serum, S. Amat, B. Neville, C. Dahlen, David J. Smith, K. Swanson","doi":"10.1139/cjas-2023-0033","DOIUrl":"https://doi.org/10.1139/cjas-2023-0033","url":null,"abstract":"To evaluate the effects of feeding hempseed cake on digestive enzymes, crossbred heifers ( n = 32; 494 ± 10 kg body weight) were fed diets containing 20% (dry matter basis) dried corn distillers grains plus solubles or hempseed cake for 111 days. There was greater ( P = 0.05) pancreatic mass relative to body weight in heifers fed hempseed cake. No differences ( P ≥ 0.19) in digestive enzyme activity in the pancreas (α-amylase, trypsin, and lipase) and jejunum (maltase, glucoamylase, and isomaltase) were observed between treatments. Our results suggest that feeding hempseed cake did not influence digestive enzyme activity.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41924318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. E. Carey, Z. D. Paddock, G. Ribeiro, T. McAllister, G. Penner
Abstract The objective of this study was to determine the effects of substituting barley grain with short-season, high-moisture shelled corn, and barley grain and barley silage with snaplage on ruminal fermentation and the site and extent of digestion in beef cattle fed finishing diets. Six ruminally and duodenally cannulated heifers (420 ± 16.4 kg body weight) were fed a barley grain and silage finishing diet (BG), a diet where half of the barley grain was replaced with high-moisture shelled corn (HC), or a diet where the barley silage and a portion of grain were replaced with snaplage (SN) in a replicated 3 × 3 Latin square design. While dry matter and starch intake were unaffected, feeding SN resulted in greater (P = 0.02) ruminal but not total tract starch digestibility than BG. Ruminal pH did not differ between HC and BG, but SN reduced (P = 0.02) minimum ruminal pH relative to BG. Feeding BG increased (P = 0.04) ruminal ammonia concentrations over HC. In conclusion, high-moisture shelled corn can partially replace barley grain with minimal impact on nutrient digestibility or ruminal fermentation, but replacement of barley silage and some barley grain with snaplage may increase the risk of ruminal acidosis.
{"title":"Digestibility of western Canadian finishing beef cattle diets when short-season, high-moisture shelled corn and snaplage partially replace dry-rolled barley grain and barley silage","authors":"R. E. Carey, Z. D. Paddock, G. Ribeiro, T. McAllister, G. Penner","doi":"10.1139/cjas-2022-0122","DOIUrl":"https://doi.org/10.1139/cjas-2022-0122","url":null,"abstract":"Abstract The objective of this study was to determine the effects of substituting barley grain with short-season, high-moisture shelled corn, and barley grain and barley silage with snaplage on ruminal fermentation and the site and extent of digestion in beef cattle fed finishing diets. Six ruminally and duodenally cannulated heifers (420 ± 16.4 kg body weight) were fed a barley grain and silage finishing diet (BG), a diet where half of the barley grain was replaced with high-moisture shelled corn (HC), or a diet where the barley silage and a portion of grain were replaced with snaplage (SN) in a replicated 3 × 3 Latin square design. While dry matter and starch intake were unaffected, feeding SN resulted in greater (P = 0.02) ruminal but not total tract starch digestibility than BG. Ruminal pH did not differ between HC and BG, but SN reduced (P = 0.02) minimum ruminal pH relative to BG. Feeding BG increased (P = 0.04) ruminal ammonia concentrations over HC. In conclusion, high-moisture shelled corn can partially replace barley grain with minimal impact on nutrient digestibility or ruminal fermentation, but replacement of barley silage and some barley grain with snaplage may increase the risk of ruminal acidosis.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"103 1","pages":"223 - 233"},"PeriodicalIF":1.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48503379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amanda C Meadows, S. Terry, G. Penner, P. Hucl, T. McAllister, G. Ribeiro
Abstract This study assessed the impact of dry- (DR) versus temper-rolled (TR) and low- (13%, LP) versus high-protein (18%, HP) wheat on ruminal fermentation, growth, and liver abscesses in feedlot cattle. Crossbred Angus steers (302 ± 34 kg; n = 160; 24 ruminally cannulated) were used in a backgrounding (BG) to finishing (FN) trial. The BG diet consisted of 60% barley silage, 35% wheat, and 5% supplement, and the FN diet contained 10% barley silage, 85% wheat, and 5% supplement (dry matter basis). Four transition (TN) diets were used to adapt cattle to the FN diet. A numerical increase in large particles and reduction in small particles occurred when both HP and LP wheat were TR, with this response being greater for HP wheat. Steers experienced lower (P ≤ 0.03) ruminal pH with HP-DR and LP-TR than HP-TR wheat during TN. Steers fed HP wheat BG diets tended to exhibit greater (P ≤ 0.09) gain:feed and NEg than steers fed LP wheat. Greater (P = 0.01) average daily gains were exhibited by FN steers fed LP wheat. Liver abscesses were more (P < 0.001) severe with HP wheat. While HP wheat improved the growth of BG cattle, it increased the severity of liver abscesses during FN.
{"title":"Effect of dry or temper rolling of high- or low-protein wheat and its impact on rumen parameters, growth performance, and liver abscesses in feedlot cattle","authors":"Amanda C Meadows, S. Terry, G. Penner, P. Hucl, T. McAllister, G. Ribeiro","doi":"10.1139/cjas-2022-0110","DOIUrl":"https://doi.org/10.1139/cjas-2022-0110","url":null,"abstract":"Abstract This study assessed the impact of dry- (DR) versus temper-rolled (TR) and low- (13%, LP) versus high-protein (18%, HP) wheat on ruminal fermentation, growth, and liver abscesses in feedlot cattle. Crossbred Angus steers (302 ± 34 kg; n = 160; 24 ruminally cannulated) were used in a backgrounding (BG) to finishing (FN) trial. The BG diet consisted of 60% barley silage, 35% wheat, and 5% supplement, and the FN diet contained 10% barley silage, 85% wheat, and 5% supplement (dry matter basis). Four transition (TN) diets were used to adapt cattle to the FN diet. A numerical increase in large particles and reduction in small particles occurred when both HP and LP wheat were TR, with this response being greater for HP wheat. Steers experienced lower (P ≤ 0.03) ruminal pH with HP-DR and LP-TR than HP-TR wheat during TN. Steers fed HP wheat BG diets tended to exhibit greater (P ≤ 0.09) gain:feed and NEg than steers fed LP wheat. Greater (P = 0.01) average daily gains were exhibited by FN steers fed LP wheat. Liver abscesses were more (P < 0.001) severe with HP wheat. While HP wheat improved the growth of BG cattle, it increased the severity of liver abscesses during FN.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"103 1","pages":"234 - 248"},"PeriodicalIF":1.0,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42909452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The present study was carried out to evaluate the effect of cinnamon and Bacillus subtilis on the growth, meat characteristics, and lipid profiles of broiler chickens. In experiments 1 and 2, a total of 320 day-old broiler chicks were assigned to D1 (control), D2 (4 g cinnamon/kg), D3 (6 g cinnamon/kg), D4 (8 g cinnamon/kg) with four replicates, and D1 (control), D2 (0.4 g B. subtilis (BS)/kg), D3 (0.6 g BS/kg), D4 (0.8 g BS/kg), D5 (6 g cinnamon/kg) with three replicates, and 10 chicks/replication for 35 and 30 days, respectively. In experiment 1, no significant difference was observed among diets for growth and meat yield. However, test diets performed better than the control diet in terms of water-holding capacity of meat (WHCM), cooking loss of meat (CLM), blood lipids profiles (BLP), sensory quality score (SQS) (p > 0.05), and flavor (p < 0.05). In experiment 2, there was no significant difference among diets for growth, meat yield, WHCM, CLM, and BLP of the bird (p > 0.05), except for SQS (p < 0.001). Notwithstanding, the D5 tended to increase growth, meat yield, WHCM, and SQS, and decrease CLM and BLP. Thigh meat showed higher SQS than breast meat in both experiments. Therefore, the 6 g cinnamon/kg diet may be used for producing a safe, quality, and cost-effective broiler.
{"title":"Use of cinnamon and Bacillus subtilis probiotics in the diet of broiler chickens","authors":"Mohammad Aminul Islam, M. Nishibori","doi":"10.1139/cjas-2022-0018","DOIUrl":"https://doi.org/10.1139/cjas-2022-0018","url":null,"abstract":"Abstract The present study was carried out to evaluate the effect of cinnamon and Bacillus subtilis on the growth, meat characteristics, and lipid profiles of broiler chickens. In experiments 1 and 2, a total of 320 day-old broiler chicks were assigned to D1 (control), D2 (4 g cinnamon/kg), D3 (6 g cinnamon/kg), D4 (8 g cinnamon/kg) with four replicates, and D1 (control), D2 (0.4 g B. subtilis (BS)/kg), D3 (0.6 g BS/kg), D4 (0.8 g BS/kg), D5 (6 g cinnamon/kg) with three replicates, and 10 chicks/replication for 35 and 30 days, respectively. In experiment 1, no significant difference was observed among diets for growth and meat yield. However, test diets performed better than the control diet in terms of water-holding capacity of meat (WHCM), cooking loss of meat (CLM), blood lipids profiles (BLP), sensory quality score (SQS) (p > 0.05), and flavor (p < 0.05). In experiment 2, there was no significant difference among diets for growth, meat yield, WHCM, CLM, and BLP of the bird (p > 0.05), except for SQS (p < 0.001). Notwithstanding, the D5 tended to increase growth, meat yield, WHCM, and SQS, and decrease CLM and BLP. Thigh meat showed higher SQS than breast meat in both experiments. Therefore, the 6 g cinnamon/kg diet may be used for producing a safe, quality, and cost-effective broiler.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"103 1","pages":"312 - 321"},"PeriodicalIF":1.0,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45820377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Cargo-Froom, F. Tansil, D. Columbus, C. Marinangeli, E. Kiarie, A. Shoveller
Abstract The objective of this study was to determine the standardized ileal digestibility (SID) of protein and amino acids (AA) and calculate the digestible indispensable AA score (DIAAS) of three varieties of Canadian grown pulses (faba bean, lentil, and yellow pea). Three steam-pelleted (80 °C) diets (faba/lentil/pea; 40% inclusion) and a nitrogen-free diet were fed to eight cannulated growing pigs in a 4 × 4 replicated Latin square design. The SID values were used to calculate DIAAS. There were no differences in SID of protein and AA when all diets were compared (P > 0.05). The SID of methionine was 95% for faba beans, 96% for lentils, and 96% for peas. The SID of lysine was 93% for faba beans, 92% for lentils, and 90% for peas. Tryptophan had the lowest SID across all indispensable AA of all pulses (59% faba, 61% lentil, and 41% pea). All other indispensable AA SID were above 80%. Tryptophan was the limiting indispensable AA for all pulses as determined by DIAAS, with scores of 30 (faba), 57.83 (lentil), and 27.27 (pea). These values will aid in optimal inclusion of steam-pelleted pulses in diets for swine and provide an insight on the protein quality of pulses for humans.
{"title":"Determination of standardized ileal digestibility of crude protein and amino acids and digestible indispensable amino acid score of faba beans, lentils, and yellow peas fed to growing pigs","authors":"C. Cargo-Froom, F. Tansil, D. Columbus, C. Marinangeli, E. Kiarie, A. Shoveller","doi":"10.1139/cjas-2023-0022","DOIUrl":"https://doi.org/10.1139/cjas-2023-0022","url":null,"abstract":"Abstract The objective of this study was to determine the standardized ileal digestibility (SID) of protein and amino acids (AA) and calculate the digestible indispensable AA score (DIAAS) of three varieties of Canadian grown pulses (faba bean, lentil, and yellow pea). Three steam-pelleted (80 °C) diets (faba/lentil/pea; 40% inclusion) and a nitrogen-free diet were fed to eight cannulated growing pigs in a 4 × 4 replicated Latin square design. The SID values were used to calculate DIAAS. There were no differences in SID of protein and AA when all diets were compared (P > 0.05). The SID of methionine was 95% for faba beans, 96% for lentils, and 96% for peas. The SID of lysine was 93% for faba beans, 92% for lentils, and 90% for peas. Tryptophan had the lowest SID across all indispensable AA of all pulses (59% faba, 61% lentil, and 41% pea). All other indispensable AA SID were above 80%. Tryptophan was the limiting indispensable AA for all pulses as determined by DIAAS, with scores of 30 (faba), 57.83 (lentil), and 27.27 (pea). These values will aid in optimal inclusion of steam-pelleted pulses in diets for swine and provide an insight on the protein quality of pulses for humans.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"103 1","pages":"273 - 281"},"PeriodicalIF":1.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48569859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hajer Sammari, Amani Askri, Sahar Benahmed, L. Saucier, Nabeel Alnahhas
Abstract In this study, 206 breast fillets were purchased from grocery stores in the province of Quebec and evaluated for the presence of different quality defects. Of these fillets, 48.5% showed breast muscle myopathies (BMM), 19.4% showed pale, soft, and exudative (PSE), and 6.8% showed dark, firm, and dry (DFD) attributes. BMM were equally present (P > 0.05) in fillets of economical, commercial, and high-quality brands, while PSE-like fillets were more present in economical brands (P < 0.0001). The combined effect of BMM and DFD induced significantly higher counts of Salmonella (P = 0.03) and Enterobacteriaceae (P = 0.03) in myopathic than in unaffected fillets. These quality defects also altered the nutritional quality of breast meat: BMM-affected fillets had greater fat content (P < 0.0001) and DFD fillets had lower protein content (P = 0.041) than normal fillets. The technological quality was only slightly impacted by BMM, while PSE-like fillets had higher cooking loss (P = 0.009) and a tougher texture after cooking (P < 0.0001) than DFD fillets. For the first time, this study confirmed the presence of multiple quality issues in the Quebec poultry supply chain, and provided valuable data to support future research efforts.
{"title":"A survey of broiler breast meat quality in the retail market of Quebec","authors":"Hajer Sammari, Amani Askri, Sahar Benahmed, L. Saucier, Nabeel Alnahhas","doi":"10.1139/cjas-2023-0001","DOIUrl":"https://doi.org/10.1139/cjas-2023-0001","url":null,"abstract":"Abstract In this study, 206 breast fillets were purchased from grocery stores in the province of Quebec and evaluated for the presence of different quality defects. Of these fillets, 48.5% showed breast muscle myopathies (BMM), 19.4% showed pale, soft, and exudative (PSE), and 6.8% showed dark, firm, and dry (DFD) attributes. BMM were equally present (P > 0.05) in fillets of economical, commercial, and high-quality brands, while PSE-like fillets were more present in economical brands (P < 0.0001). The combined effect of BMM and DFD induced significantly higher counts of Salmonella (P = 0.03) and Enterobacteriaceae (P = 0.03) in myopathic than in unaffected fillets. These quality defects also altered the nutritional quality of breast meat: BMM-affected fillets had greater fat content (P < 0.0001) and DFD fillets had lower protein content (P = 0.041) than normal fillets. The technological quality was only slightly impacted by BMM, while PSE-like fillets had higher cooking loss (P = 0.009) and a tougher texture after cooking (P < 0.0001) than DFD fillets. For the first time, this study confirmed the presence of multiple quality issues in the Quebec poultry supply chain, and provided valuable data to support future research efforts.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"103 1","pages":"298 - 311"},"PeriodicalIF":1.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44302123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Boonstra, I. Aboagye, T. McAllister, G. Legesse, G. Mengistu, D. L. Fulawka, Marcos R. C. Cordeiro, G. Ribeiro, E. McGeough, K. Ominski
Abstract Greenhouse gas (GHG) and ammonia (NH3) emissions, land and water use associated with feedlot cattle (n = 40 hd treatment−1 trial−1) treated with or without productivity-enhancing technologies were modelled for a multiyear study (n = 4). Heifers (H) were assigned to the following treatments: (1) implanted (HTBA); (2) provided with melengestrol acetate (HMGA); (3) nonimplanted control, weight-adjusted (CON_Adj) to achieve the same final carcass weight (CW) as 1 (HCON_AdjTBA); or (4) CON_Adj to achieve the CW as 2 (HCON_AdjMGA). Steers (S) were assigned as follows: (1) implanted (STBA); (2) implanted and provided with ractopamine hydrochloride (SRAC; conducted in the last 2 years); (3) CON_Adj to achieve the same CW as 1 (SCON_AdjTBA); or (4) CON_Adj to achieve the same CW as 2 (SCON_AdjRAC). The GHG and NH3 emissions from HTBA, HMGA, STBA, and SRAC were 3.8%, 3.0%, 10.1%, and 8.5% lower and 4.3%, 2.9%, 7.4%, and 7.6% lower, respectively, than the respective control cattle. The land required to produce feed was also reduced by 6.6%, 4.8%, 9.9%, and 10.9%, while water use was reduced by 6.4%, 4.8%, 10.1%, and 11.1% for HTBA, HMGA, STBA, and SRAC, respectively. This modelling study clearly demonstrates that conventional beef production systems have a lower environmental footprint than nonconventional systems.
{"title":"Modelling environmental impacts associated with the removal of productivity-enhancing technologies from Canadian feedlots: a case study","authors":"E. Boonstra, I. Aboagye, T. McAllister, G. Legesse, G. Mengistu, D. L. Fulawka, Marcos R. C. Cordeiro, G. Ribeiro, E. McGeough, K. Ominski","doi":"10.1139/cjas-2022-0132","DOIUrl":"https://doi.org/10.1139/cjas-2022-0132","url":null,"abstract":"Abstract Greenhouse gas (GHG) and ammonia (NH3) emissions, land and water use associated with feedlot cattle (n = 40 hd treatment−1 trial−1) treated with or without productivity-enhancing technologies were modelled for a multiyear study (n = 4). Heifers (H) were assigned to the following treatments: (1) implanted (HTBA); (2) provided with melengestrol acetate (HMGA); (3) nonimplanted control, weight-adjusted (CON_Adj) to achieve the same final carcass weight (CW) as 1 (HCON_AdjTBA); or (4) CON_Adj to achieve the CW as 2 (HCON_AdjMGA). Steers (S) were assigned as follows: (1) implanted (STBA); (2) implanted and provided with ractopamine hydrochloride (SRAC; conducted in the last 2 years); (3) CON_Adj to achieve the same CW as 1 (SCON_AdjTBA); or (4) CON_Adj to achieve the same CW as 2 (SCON_AdjRAC). The GHG and NH3 emissions from HTBA, HMGA, STBA, and SRAC were 3.8%, 3.0%, 10.1%, and 8.5% lower and 4.3%, 2.9%, 7.4%, and 7.6% lower, respectively, than the respective control cattle. The land required to produce feed was also reduced by 6.6%, 4.8%, 9.9%, and 10.9%, while water use was reduced by 6.4%, 4.8%, 10.1%, and 11.1% for HTBA, HMGA, STBA, and SRAC, respectively. This modelling study clearly demonstrates that conventional beef production systems have a lower environmental footprint than nonconventional systems.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"103 1","pages":"249 - 261"},"PeriodicalIF":1.0,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44680618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. Babatunde, C. Cargo-Froom, Y. Ai, R. Newkirk, C. Marinangeli, A. Shoveller, D. Columbus
Abstract Pulses are important as alternative sources of protein and carbohydrates for the animal industry and, thus, require accurate evaluation of their nutrient profile during processing. Extrusion is a thermal processing of ingredients to induce physiochemical changes that convert them into more valuable products. The current study evaluated the effects of extrusion on the starch and fibre components of Amarillo peas, Dun peas, chickpeas, faba beans, lentils, and soybean meal (SBM). Pulses were extruded at 18% or 22% moisture and 110, 130, or 150 °C. Extrusion decreased (P < 0.05) the starch content in Amarillo and Dun peas but increased (P < 0.05) the same in faba beans, lentils, and SBM when compared with their whole counterparts. There was no difference in the total dietary fibre content of whole and extruded Amarillo peas, Dun peas, chickpeas, and SBM. Extrusion increased (P < 0.05) the soluble dietary fibre (SDF) content of all pulses and SBM except chickpeas. Extrusion increased (P < 0.05) for all fibre types in faba beans. Results indicate that extrusion increased the starch and SDF content of most pulses but had negative or no effects on other fibre components in all pulses except faba beans.
{"title":"Extrusion effects on the starch and fibre composition of Canadian pulses","authors":"O. Babatunde, C. Cargo-Froom, Y. Ai, R. Newkirk, C. Marinangeli, A. Shoveller, D. Columbus","doi":"10.1139/cjas-2022-0127","DOIUrl":"https://doi.org/10.1139/cjas-2022-0127","url":null,"abstract":"Abstract Pulses are important as alternative sources of protein and carbohydrates for the animal industry and, thus, require accurate evaluation of their nutrient profile during processing. Extrusion is a thermal processing of ingredients to induce physiochemical changes that convert them into more valuable products. The current study evaluated the effects of extrusion on the starch and fibre components of Amarillo peas, Dun peas, chickpeas, faba beans, lentils, and soybean meal (SBM). Pulses were extruded at 18% or 22% moisture and 110, 130, or 150 °C. Extrusion decreased (P < 0.05) the starch content in Amarillo and Dun peas but increased (P < 0.05) the same in faba beans, lentils, and SBM when compared with their whole counterparts. There was no difference in the total dietary fibre content of whole and extruded Amarillo peas, Dun peas, chickpeas, and SBM. Extrusion increased (P < 0.05) the soluble dietary fibre (SDF) content of all pulses and SBM except chickpeas. Extrusion increased (P < 0.05) for all fibre types in faba beans. Results indicate that extrusion increased the starch and SDF content of most pulses but had negative or no effects on other fibre components in all pulses except faba beans.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"103 1","pages":"289 - 297"},"PeriodicalIF":1.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45199563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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