Canadian Journal of Animal Science最新文献_第4页

Effect of Feeding Calcium Gluconate Embedded in a Hydrogenated Fat Matrix on Performance, Gastrointestinal Fermentation, Ruminal Morphology, Carcass Merit and Meat Quality for Finishing Beef Heifers 饲喂嵌入氢化脂肪基质中的葡萄糖酸钙对育成肉用小母牛的生产性能、胃肠道发酵、反刍形态、胴体品质和肉质的影响

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2024-02-06 DOI: 10.1139/cjas-2023-0055

D. M. Watanabe, J. Doelman, Dave J. Seymour, M. Sanz-Fernández, Ó. López-Campos, Nuria Prieto Benavides, Paweł Górka, G. B. Penner

{"title":"Effect of Feeding Calcium Gluconate Embedded in a Hydrogenated Fat Matrix on Performance, Gastrointestinal Fermentation, Ruminal Morphology, Carcass Merit and Meat Quality for Finishing Beef Heifers","authors":"D. M. Watanabe, J. Doelman, Dave J. Seymour, M. Sanz-Fernández, Ó. López-Campos, Nuria Prieto Benavides, Paweł Górka, G. B. Penner","doi":"10.1139/cjas-2023-0055","DOIUrl":"https://doi.org/10.1139/cjas-2023-0055","url":null,"abstract":"Twenty-one beef heifers were used in a randomized complete block design lasting 206 ± 8 d (mean ± SD) to evaluate DMI, growth, and gastrointestinal tract and carcass characteristics with increasing dose of dietary hydrogenated fat-embedded calcium gluconate (HFCG). Dietary treatments included HFCG included at: 0.0 (CON); 0.09% (CG09), or 0.18% DM (CG18). Heifers were fed individually and fecal samples were collected on d 171 and 192. Gastrointestinal tissue, digesta, carcass merit, and meat quality and sensory characteristics were assessed after slaughter. Data were analyzed to determine the linear and quadratic effects of HFCG dose. Dry matter intake, ADG, and G:F were not affected (P ≥ 0.08) by dose of HFCG. Gastrointestinal fermentation was minimally affected but quadratic responses (P = 0.03 and P = 0.01, respectively) were observed for jejunal digesta pH and for the molar proportion of isovalerate in colon digesta where both increased and then decreased as HFCG dose increased. Carcass (P ≥ 0.30), meat quality (P ≥ 0.06), and sensory characteristics (P ≥ 0.21) were not affected by dose of HFCG. We conclude that feeding HFCG to finishing beef heifers diet did not affect DMI, growth, gastrointestinal fermentation parameters, or carcass merit, meat quality and palatability.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139861714","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}

引用次数: 0

The effects of cricket meal (Gryllus sigillatus) on the meat quality, growth, and internal morphology of broiler chickens 蟋蟀粉对肉鸡肉质、生长和内部形态的影响

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2024-02-02 DOI: 10.1139/cjas-2023-0105

Holly J. Fisher, Madelaine Empey, J. MacIsaac, Bruce Rathgeber, Beth Mason, Stefanie Colombo, Stephanie Anne Collins

{"title":"The effects of cricket meal (Gryllus sigillatus) on the meat quality, growth, and internal morphology of broiler chickens","authors":"Holly J. Fisher, Madelaine Empey, J. MacIsaac, Bruce Rathgeber, Beth Mason, Stefanie Colombo, Stephanie Anne Collins","doi":"10.1139/cjas-2023-0105","DOIUrl":"https://doi.org/10.1139/cjas-2023-0105","url":null,"abstract":"Cricket (Gryllus sigillatus) meal (CM) was fed to Ross 308 broiler chickens (n=624 total; 26 birds/pen) at dietary inclusion rates of 0% (non-medicated control; NM), 0% (medicated control; 0.05% virginiamycin, 0.03% monensin), 5, 10, 15, and 20% CM (non-medicated) for 35 days to determine the impact of this novel feed ingredient on the growth, feed intake, organ indices, and meat quality of these chickens. The final average live weight of broilers fed 5% CM was lower than broilers fed the 10% CM (P<0.05) and the 0% NM diets (P<0.05). Total weight gain was lowest in chickens fed 5% CM (P<0.05) and the % ratio of the weight of the small intestine to body weight of the chickens fed 5% CM was significantly higher on day 20 than that of the other treatments (P<0.05). Meat texture and colour were not affected by dietary treatments. Cooking loss in birds fed the 10% CM diet was significantly higher than that of birds fed the 0% NM control. Feeding up to 20% CM did not alter the growth, organ indices, or meat quality of broiler chickens, although further research is required to determine whether including >20% CM in the diet will produce similar results.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139810608","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}

引用次数: 0

The effects of cricket meal (Gryllus sigillatus) on the meat quality, growth, and internal morphology of broiler chickens 蟋蟀粉对肉鸡肉质、生长和内部形态的影响

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2024-02-02 DOI: 10.1139/cjas-2023-0105

Holly J. Fisher, Madelaine Empey, J. MacIsaac, Bruce Rathgeber, Beth Mason, Stefanie Colombo, Stephanie Anne Collins

{"title":"The effects of cricket meal (Gryllus sigillatus) on the meat quality, growth, and internal morphology of broiler chickens","authors":"Holly J. Fisher, Madelaine Empey, J. MacIsaac, Bruce Rathgeber, Beth Mason, Stefanie Colombo, Stephanie Anne Collins","doi":"10.1139/cjas-2023-0105","DOIUrl":"https://doi.org/10.1139/cjas-2023-0105","url":null,"abstract":"Cricket (Gryllus sigillatus) meal (CM) was fed to Ross 308 broiler chickens (n=624 total; 26 birds/pen) at dietary inclusion rates of 0% (non-medicated control; NM), 0% (medicated control; 0.05% virginiamycin, 0.03% monensin), 5, 10, 15, and 20% CM (non-medicated) for 35 days to determine the impact of this novel feed ingredient on the growth, feed intake, organ indices, and meat quality of these chickens. The final average live weight of broilers fed 5% CM was lower than broilers fed the 10% CM (P<0.05) and the 0% NM diets (P<0.05). Total weight gain was lowest in chickens fed 5% CM (P<0.05) and the % ratio of the weight of the small intestine to body weight of the chickens fed 5% CM was significantly higher on day 20 than that of the other treatments (P<0.05). Meat texture and colour were not affected by dietary treatments. Cooking loss in birds fed the 10% CM diet was significantly higher than that of birds fed the 0% NM control. Feeding up to 20% CM did not alter the growth, organ indices, or meat quality of broiler chickens, although further research is required to determine whether including >20% CM in the diet will produce similar results.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139870367","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}

引用次数: 0

Genetic evaluation for piglet crushing behaviour in primiparous sows 初产母猪挤压仔猪行为的遗传评估

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2024-01-29 DOI: 10.1139/cjas-2023-0091

M. Jafarikia, Zahra Karimi, Brent DeVries, Flavio S Schenkel, Brian Sullivan, Ray Lu

{"title":"Genetic evaluation for piglet crushing behaviour in primiparous sows","authors":"M. Jafarikia, Zahra Karimi, Brent DeVries, Flavio S Schenkel, Brian Sullivan, Ray Lu","doi":"10.1139/cjas-2023-0091","DOIUrl":"https://doi.org/10.1139/cjas-2023-0091","url":null,"abstract":"Stress in farrowing sows is associated with the number of piglets crushed or attacked. Sow’s behaviour is variable and heritable, therefore genetic selection can be a viable approach for improving pig’s welfare. In this report, we used first parity litter records of Yorkshire sows to test a genetic evaluation model for piglet crushing. The data were split into training and validation to check the prediction accuracy of piglet crushing EBVs for young sows. We found that the estimated heritability of piglet crushing was 0.07±0.03. The difference in the EBVs in the validation set was equivalent to 0.15 more piglets crushed in the top 10% group than in the bottom group of sows. These results indicate that the genetic selection may be used to reduce piglet crushing which will improve the welfare of pigs as well as production efficiency. The average reliability of the estimated EBVs across all animals in the pedigree was (0.07; 0.0 to 0.72). More research on evaluation models and the genetics underlying sow stress and behaviour is warranted to improve the reliabilities of modeling and to identify robust genetic markers for animal breeding for the implementation.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140485831","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}

引用次数: 0

Evaluation of cool-season perennial forage varieties as monocultures and legume–grass binary mixtures under intensive grazing 在集约化放牧条件下，评估作为单作和豆科-禾本科二元混合物的冷季型多年生牧草品种

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2024-01-15 DOI: 10.1139/cjas-2023-0093

Cassidy Sim, Diego Moya, B. Biligetu, Gabriel O. Ribeiro, D. Damiran, H. Lardner

{"title":"Evaluation of cool-season perennial forage varieties as monocultures and legume–grass binary mixtures under intensive grazing","authors":"Cassidy Sim, Diego Moya, B. Biligetu, Gabriel O. Ribeiro, D. Damiran, H. Lardner","doi":"10.1139/cjas-2023-0093","DOIUrl":"https://doi.org/10.1139/cjas-2023-0093","url":null,"abstract":"In Canada, new forage varieties need not undergo grazing trials before registration and sale. To evaluate the effect of grazing, six cool-season species including meadow bromegrass ( Bromus riparius Rehmann), orchardgrass ( Dactylis glomerata L.), sainfoin ( Onobrychis viciifoila Scop.), and three alfalfa varieties ( Medicago sativa L.) were established in monocultures and grass–legume binary mixtures in Saskatchewan, Canada. Forage treatments were randomly established within each of three 3.5 ha paddock replicates. In Year 1, 69 Bos taurus crossbred steers, and in Year 2, 149 steers were homogenously allocated to the three paddocks for the grazing trials. Alfalfa monocultures had the greatest ( p < 0.05) pre-graze forage yields and crude protein content. Leaf area index was greater in alfalfa monocultures than in all other treatments ( p < 0.01). Etiolated growth differed ( p < 0.05) among binary mixtures but not monocultures. Alfalfa monoculture stands were preferred over grass monocultures and most grass–legume mixtures, and sainfoin was avoided relative to alfalfa. Killarney orchardgrass was the least productive and least preferred among forages evaluated. In summary, alfalfa monocultures had greater ( p < 0.05) forage yields and quality than sainfoin monocultures, grass–legume binary mixtures, or grass monocultures.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139529344","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}

引用次数: 0

Effects of partial replacement of fishmeal with dried porcine soluble on the growth performance, nutrient digestibility, fecal microbiota, and fecal score in weaning pig 用猪可溶性干粉部分替代鱼粉对断奶猪生长性能、营养物质消化率、粪便微生物群和粪便评分的影响

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2024-01-12 DOI: 10.1139/cjas-2023-0065

M. M. Hossain, Sungbo Cho, I. Kim

{"title":"Effects of partial replacement of fishmeal with dried porcine soluble on the growth performance, nutrient digestibility, fecal microbiota, and fecal score in weaning pig","authors":"M. M. Hossain, Sungbo Cho, I. Kim","doi":"10.1139/cjas-2023-0065","DOIUrl":"https://doi.org/10.1139/cjas-2023-0065","url":null,"abstract":"Dried porcine solubles (DPS) is the by-product obtained during the extraction of heparin from the porcine mucosa of the small intestine. The effects of partially replacing fishmeal with DPS in weaning pig diets on growth performance, nutrient digestibility, fecal microbial count, and fecal score was investigated here. A total of 70 crossbred [(Yorkshire × Landrace) × Duroc] weaning pigs were divided into two dietary treatment groups. Dietary treatments, CON: 3% fishmeal; DPS: 1.5% fishmeal and 1.5% dried porcine solubles. Average daily gain was tended to increase (p<0.10) in weaning pigs fed DPS compared to the CON group in week 2. Digestibility of dry matter was tended to improve (p<0.10) in weaning pigs fed pigs fed DPS diet group in week 2 and week 5. Fecal Lactobacillus count was tended to increase (p<0.10) and E. coli was tended to decrease (p<0.10) in weaning pigs fed DPS compared to the weaning pigs fed CON at week 5 of the feeding trial. Our findings suggest that partially replacing fishmeal with dried porcine solubles in weaning pig diets can have beneficial effects on the growth performance through the tendency to improve dry matter digestibility and fecal microbiota.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139624179","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}

引用次数: 0

Effect of dietary nitrogen content and ammonium phosphate inclusion on lysine requirement for nitrogen retention in growing pigs 日粮氮含量和磷铵添加量对生长猪赖氨酸保氮需求量的影响

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2024-01-05 DOI: 10.1139/cjas-2023-0111

Miranda Buchinski, M. O. Wellington, Carley M Camiré, J. Panisson, A. Shoveller, D. Columbus

{"title":"Effect of dietary nitrogen content and ammonium phosphate inclusion on lysine requirement for nitrogen retention in growing pigs","authors":"Miranda Buchinski, M. O. Wellington, Carley M Camiré, J. Panisson, A. Shoveller, D. Columbus","doi":"10.1139/cjas-2023-0111","DOIUrl":"https://doi.org/10.1139/cjas-2023-0111","url":null,"abstract":"Inclusion of a source of non-protein nitrogen (NPN) may improve essential amino acid (EAA) and nitrogen (N) utilization in N-limiting diets. Growing barrows (20.4 ± 0.5 kg) were randomly assigned to 1 of 10 dietary treatments (n=9 pigs/treatment) in 9 blocks. Diets contained no ammonium phosphate (NAP) or 1.7% ammonium phosphate (AP) to have an EAA-N:total N ratio of 0.36 and 0.33, respectively, with graded levels of dietary Lys [0.8%, 0.9%, 1.0%, 1.1% and 1.2% standardized ileal digestible (SID)]. Following a 7-d dietary adaptation, a 4-d N-balance collection period was conducted. Blood samples were obtained on d 2 of the collection period. Nitrogen-retention increased and urinary N output decreased with inclusion of NPN and increasing Lys (P < 0.01). Plasma urea N decreased with increasing Lys (P < 0.05). Total plasma EAA content was reduced with NPN supplementation (P < 0.05), while content of Arg, Asp, Gln and Glu were increased (P < 0.01). The linear breakpoint model indicated NR was maximized at 1.00% SID Lys in NAP-fed pigs and at 1.09% SID Lys in AP-fed pigs. These results indicate that diets deficient in dietary N reduce NR and Lys requirement, which were in turn increased with NPN supplementation.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139383789","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}

引用次数: 0

An Assessment of the Environmental Sustainability of Beef Production in Canada 加拿大牛肉生产的环境可持续性评估

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2024-01-04 DOI: 10.1139/cjas-2023-0077

Isaac Asante Aboagye, Gayathri Valappil, Baishali Dutta, Hugues Imbeault-Tétreault, K. Ominski, Marcos Cordeiro, R. Kröbel, S. Pogue, T. A. McAllister

{"title":"An Assessment of the Environmental Sustainability of Beef Production in Canada","authors":"Isaac Asante Aboagye, Gayathri Valappil, Baishali Dutta, Hugues Imbeault-Tétreault, K. Ominski, Marcos Cordeiro, R. Kröbel, S. Pogue, T. A. McAllister","doi":"10.1139/cjas-2023-0077","DOIUrl":"https://doi.org/10.1139/cjas-2023-0077","url":null,"abstract":"This study assessed the environmental impacts of beef cattle production and their effects on the overall sustainability of Canadian beef production. Cradle to farm gate, cradle to processor’s gate, and cradle to consumer plate life cycle assessments were carried out to quantify greenhouse gases (GHG), resource use (i.e., water, land, and fuel), and potential water and air pollution (i.e., freshwater eutrophication, terrestrial acidification and photochemical oxidants formation). Across the production chain, feed production had the greatest impact on most environmental indicators. The GHG intensity without dairy meat was estimated as 10.4 kg CO2-eq/kg live weight (LW), corresponding to 32.8 kg CO2-eq/kg consumed boneless beef. Including dairy meat reduced GHG intensity by 5.8% (0.6 kg CO2-eq/kg LW) compared to when it was excluded. Other environmental metrics per kg of LW were 657 L, 38.7 m2 annual crop-eq, 0.4 kg oil-eq, 2.6 kg P-eq, 115.9 kg SO2-eq, and 8.7 kg NOx-eq for water use, land use, fossil fuel use, freshwater eutrophication, terrestrial acidification, and photochemical oxidants, respectively. Data provide benchmarks for use in future regional and national assessments that are designed to encourage the adoption of sustainable management practices that can lower the environmental footprint of Canadian beef production.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139386573","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}

引用次数: 0

Effect of dietary almond hull on growth performance, nutrient digestibility, fecal microbial, fecal score, and noxious gas emission in growing pigs. 日粮杏仁壳对生长猪生长性能、营养消化率、粪便微生物、粪便评分和有害气体排放的影响

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-12-19 DOI: 10.1139/cjas-2023-0072

Golam Sagir Ahammad, Chai Bin Lim, Inho Kim

{"title":"Effect of dietary almond hull on growth performance, nutrient digestibility, fecal microbial, fecal score, and noxious gas emission in growing pigs.","authors":"Golam Sagir Ahammad, Chai Bin Lim, Inho Kim","doi":"10.1139/cjas-2023-0072","DOIUrl":"https://doi.org/10.1139/cjas-2023-0072","url":null,"abstract":"In a 42-day study, 195 growing pigs (Landrace × Yorkshire × Duroc) weighing 23.83 ± 1.95 kg were randomly divided into three treatments, each with 13 replicates and five pigs (3 barrows and 2 gilts) per pen. The treatments were: Control (CON) - basal diet, and basal diet with 3% and 6% almond hull as treatment (TRT) 1 and 2, respectively. The results show a significant increase (p < 0.05) in average daily gain (ADG) and average daily feed intake (ADFI) for both treatment 1 and treatment 2 by week 6 when compared to the control group. This improvement in ADG and ADFI exhibits a consistent trend (p < 0.10) throughout the overall trial period in comparison to the control group. Additionally, there is a tendency for enhanced gain ratio to feed (G:F) at the end of week 6 (p < 0.10) in comparison to the control group and remained constant (p > 0.05). No significant impact (p > 0.05) on nutrient digestibility and fecal microbiota was observed. However, NH3 gas showed a tendency to decrease (p < 0.10). Results suggested that almond hulls could improve growth and reduce ammonia gas without adverse effects on digestion, microbiota, and fecal score.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963024","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}

引用次数: 0

Impact of dietary zinc and copper levels on ileal and total apparent nutrient digestibility in growing pigs 日粮锌和铜水平对生长猪回肠和总表观营养消化率的影响

IF 1 4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-12-18 DOI: 10.1139/cjas-2023-0082

M. A. Ketata, M. Letourneau-Montminy, Frédéric Guay

{"title":"Impact of dietary zinc and copper levels on ileal and total apparent nutrient digestibility in growing pigs","authors":"M. A. Ketata, M. Letourneau-Montminy, Frédéric Guay","doi":"10.1139/cjas-2023-0082","DOIUrl":"https://doi.org/10.1139/cjas-2023-0082","url":null,"abstract":"This study aimed to evaluate the effect of dietary zinc and copper levels on their apparent ileal digestibility (AID) and total tract digestibility (ATTD), and that of calcium, manganese, iron, phosphorus, and fibre in pigs. The experiment was carried out with six individuals fitted with a T-cannula. Pigs received one of four diets with two levels of zinc (100 [low] and 500 [high] mg/kg) and copper (40 [low] and 80 [high] mg/kg). HighZinc increased AID of zinc and manganese but decreased that of calcium (P < 0.05). HighCopper tended to improve AID of copper but only when highZinc was used (Zinc×Copper, P = 0.051). ATTD of zinc, copper, manganese, and phosphorus was greater in highZinc (P < 0.05). HighCopper also increased ATTD of copper, but reduced that of calcium (P < 0.05) as it likely did for ATTD of phosphorus in lowZinc (Zinc×Copper, P = 0.065). There was an improving trend for ATTD of NDF (Zinc×Copper, P = 0.069), and ATTD of ADF was increased with a combination of highZinc and highCopper (Interaction, Zinc×Copper P < 0.05). This research showed that levels of copper and zinc modified the digestibility of minerals but also the degradability of fibre.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175694","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}

引用次数: 0