Canadian Journal of Animal Science最新文献_第2页

Centre pork chop colour classification using image analysis on the ventral surface of the loin 利用图像分析对猪排腰部腹面进行中心颜色分类

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-11-13 DOI: 10.1139/cjas-2023-0011

Xinyi Wei, Benjamin M Bohrer, B. Uttaro, Manuel Juárez

引用次数: 0

Inclusion of dietary Quillaja saponin and seaweed on growth efficiency, noxious gas emissions, and fecal score in weaning pigs 饲粮中添加黄芪皂苷和海藻对断奶仔猪生长效率、有害气体排放和粪便评分的影响

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-11-09 DOI: 10.1139/cjas-2023-0031

Sharif uddin Khan, Jun Ho Song, In Ho Kim

{"title":"Inclusion of dietary Quillaja saponin and seaweed on growth efficiency, noxious gas emissions, and fecal score in weaning pigs","authors":"Sharif uddin Khan, Jun Ho Song, In Ho Kim","doi":"10.1139/cjas-2023-0031","DOIUrl":"https://doi.org/10.1139/cjas-2023-0031","url":null,"abstract":"This study aimed to investigate the dietary effects of Quillaja saponin (QS) and seaweed (SW) on growth performance, fecal score, and gas emissions in weaning pigs. A total of 120, 21-day old crossbred ([Yorkshire × Landrace] × Duroc) weaning pigs were randomly assigned to three treatment groups. These dietary treatments consisted of (1) TRT1: CON (basal diet), (2) TRT2: CON + 200 mg/kg QS, and (3) TRT3: CON + 500 mg/kg SW. Pigs were raised in 10 replicate pens per treatment (two males per pen and two females per pen) for 5 weeks based on body weight and sex. The inclusion of QS significantly ( p < 0.05) increased average daily gain (ADG) and average daily feed intake (ADFI) during the overall period compared to the control diet. Moreover, the tendency to increase ADG was found at weeks 1 and 5, whereas ADFI showed a tendency to increase at week 1 with the supplementation of QS compared to the CON diet. However, the feed conversion ratio, fecal score, and gas emission failed to show significant effects throughout the experiment. In summary, QS has a beneficial effect on the growth performance of weaning pigs without any negative effect on gas emission and fecal score.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":" 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135191980","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

Probiotic complex supplementation to growing pig’s diet enhances daily growth and reduces fecal gas emission 在生长猪日粮中添加复合益生菌可促进日增长，减少粪便排放

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-11-08 DOI: 10.1139/cjas-2023-0016

Shanchuan Cao, Sungbo Cho, Jae Hong Park, Yangseon Kim, In Ho Kim

{"title":"Probiotic complex supplementation to growing pig’s diet enhances daily growth and reduces fecal gas emission","authors":"Shanchuan Cao, Sungbo Cho, Jae Hong Park, Yangseon Kim, In Ho Kim","doi":"10.1139/cjas-2023-0016","DOIUrl":"https://doi.org/10.1139/cjas-2023-0016","url":null,"abstract":"A total of 180 growing pigs (Duroc × Landrace × Yorkshire) with an initial body weight (BW) of 23.58 ± 0.8 kg were used in this experiment. According to initial BW and sex, pigs were randomly allotted three dietary treatments, 12 replicates (pen) per treatment, and five pigs per pen. The three dietary treatments were basal diet (CON) and basal diet supplemented with either 0.1% Bacillus and Saccharomyce s spp.-based probiotics complex (BS1) or 0.2% probiotics complex (BS2). The whole experiment lasted 42 days. The results showed that the BW of pigs fed the BS1 diet was significantly higher than those fed the CON diet on day 42 ( P < 0.05). The average daily gain (ADG) of pigs receiving BS1 and BS2 diets was higher than those fed CON diet during days 21–42, whereas during the overall experiment period ADG ( P < 0.05) was higher in only BS1 compared with CON group. The NH 3 and H 2 S emissions on day 42 were reduced from the feces of pigs fed probiotic complex-supplemented diets. Therefore, adding 0.1% probiotic complex to the late-phase diet of growing pigs can more effectively improve BW and daily gain and reduce harmful gas emissions.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135341762","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 evaluation of the effects of dietary mixed-species direct-fed microbial (probiotic) on growth performance, gas emissions, meat quality, nutrient digestibility, and fecal score in finishing pigs 饲粮混合种直接饲喂微生物(益生菌)对育肥猪生长性能、气体排放、肉品质、营养物质消化率和粪便评分的影响

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-11-06 DOI: 10.1139/cjas-2023-0043

Sumaya Tanzin Wahid, In Ho Kim

{"title":"An evaluation of the effects of dietary mixed-species direct-fed microbial (probiotic) on growth performance, gas emissions, meat quality, nutrient digestibility, and fecal score in finishing pigs","authors":"Sumaya Tanzin Wahid, In Ho Kim","doi":"10.1139/cjas-2023-0043","DOIUrl":"https://doi.org/10.1139/cjas-2023-0043","url":null,"abstract":"This study examined the effects of mixed-species direct-fed microbial (DFM) on growth performance, gas emissions, meat quality, nutrient digestibility, and the fecal score of finishing pigs. A total of 100 crossbred finishing pigs ((Yorkshire × Landrace) × Duroc) weighing 58.97 ± 3.12 kg were randomly assigned to one of two diets (5 pigs per pen (2 barrows and 3 gilts); 50 pigs per treatment) in an 8-week trial. Dietary treatments comprised of the basal diet without probiotics control or basal diet + (0.1%) mixed probiotics (DFM). Mixed DFM supplementation showed a tendency to increase ( P = 0.093) the body weight of finishing pigs during day 56. Comparing mixed DFM with the control diet, mixed probiotics significantly improved average daily gain (ADG) during weeks 5–8 ( P = 0.024) and overall ( P = 0.013). DFM-supplemented diets reduced the emission of CH 4 and NH 3 significantly at weeks 4 and 8 compared with control. DFM supplementation did not affect H 2 S, methyl mercaptans, acetic acid, or CO 2 emissions. Mixed DFM supplementation showed a tendency to increase ( P = 0.07) nitrogen digestibility. Pigs receiving mixed DFM had improved ADG and reduced NH 3 and CH 4 emissions without affecting meat quality, nutrient digestibility, intestinal microbes, and fecal score.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"17 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135634339","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

Supplementation of microencapsulated sodium butyrate on the performance, haemato-biochemical profile and intestinal microbiota composition of broiler chickens challenged with Eimeria spp. 添加微胶囊化丁酸钠对艾美耳球虫攻毒肉鸡生产性能、血液生化特征和肠道菌群组成的影响

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-10-24 DOI: 10.1139/cjas-2023-0002

Bárbara Fernanda da Silva Barbosa, Gabrieli Andressa de Lima, Gabriela Ventura, Bruna Abrahão Trevizan, Elis Omar Figueroa Castillo, Jéssica Tuane Bortoloto, Gustavo do Valle Polycarpo, Jaqueline Dalbello Biller, Alda Maria Backx Noronha Madeira, Valquíria Cação Cruz-Polycarpo

{"title":"Supplementation of microencapsulated sodium butyrate on the performance, haemato-biochemical profile and intestinal microbiota composition of broiler chickens challenged with <i>Eimeria</i> spp<i>.</i>","authors":"Bárbara Fernanda da Silva Barbosa, Gabrieli Andressa de Lima, Gabriela Ventura, Bruna Abrahão Trevizan, Elis Omar Figueroa Castillo, Jéssica Tuane Bortoloto, Gustavo do Valle Polycarpo, Jaqueline Dalbello Biller, Alda Maria Backx Noronha Madeira, Valquíria Cação Cruz-Polycarpo","doi":"10.1139/cjas-2023-0002","DOIUrl":"https://doi.org/10.1139/cjas-2023-0002","url":null,"abstract":"The aim of this study was to evaluate the effect of microencapsulated sodium butyrate (MSB) in substitution to antibiotics on performance, haematology, intestinal lesion scores, and oocyst count in the excreta of broilers challenged with Eimeria spp. A total of 1050 male Ross chicks were used, distributed in completely randomized design, with six treatments: unchallenged control diet (UC); challenged control diet (CCD); challenged and supplemented (CS) with 1000 mg/kg of MSB; CS with 1500 mg/kg of MSB; CS with 2000 mg/kg of MSB; and CS with avilamycin, with five repetitions. At 16 days of age (d.o.), the birds were inoculated orally with Eimeria spp. oocysts. Higher average weightgain (AWG) and average feed intake (AFI) were observed in the UC, and at the 42 d.o., better feed conversion ratio (FCR) and productive efficiency factor (PEF). The group that received the additives showed higher relative abundance of the phylum Bacteroidetes, as well as that of the unchallenged birds; however, the CCD had higher relative abundance of the phylum Firmicutes. It is concluded that MSB can be used as an alternative to antibiotics, assisting in the recovery of performance and gut microbiota biodiversity.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135219553","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

Associations of cow-level factors with the risk of poor hygiene in cows housed in free-stall and tie-stall barns 奶牛水平因素与自由栏和捆绑栏饲养的奶牛卫生不良风险的关联

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-10-19 DOI: 10.1139/cjas-2023-0084

I. Robles, D. F. Kelton, Trevor J. DeVries

引用次数: 0

Silybum marianum seed extract as a potential phytogenic feed additive for improving growth performance and nutrient digestibility in growing pigs 水飞蓟籽提取物作为一种潜在的植物性饲料添加剂，可提高生长猪的生长性能和营养物质消化率

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-10-06 DOI: 10.1139/cjas-2023-0053

Md Mortuza Hossain, Sung Bo Cho, In Ho Kim

{"title":"Silybum marianum seed extract as a potential phytogenic feed additive for improving growth performance and nutrient digestibility in growing pigs","authors":"Md Mortuza Hossain, Sung Bo Cho, In Ho Kim","doi":"10.1139/cjas-2023-0053","DOIUrl":"https://doi.org/10.1139/cjas-2023-0053","url":null,"abstract":"Silymarin is the flavonoid extracted from Silybum marianum seed. It has anti-inflammatory and antibacterial properties, and it supports liver health. The growth performance parameters, nutrient digestibility, and blood profile in growing pigs fed the dietary Silybum marianum seed extract were analyzed in this study. A total of 196 crossbred growing pigs ((Yorkshire × Landrace) × Duroc) were allocated into three dietary groups: CON: basal diet; TRT1: basal diet with 0.05% Silybum marianum seed extract; and TRT2: basal diet with 0.10% Silybum marianum seed extract. Results showed that pigs fed with Silybum marianum seed extract up to 0.10% increased average daily gain ( p < 0.10) and feed intake ( p < 0.05). The digestibility of dry matter, nitrogen, and energy were increased linearly ( p < 0.05) with addition of Silybum marianum seed extract up to 0.10%. However, serum bile acids, alanine aminotransferase (ALT), and aspertate aminotransferase (AST) were not changed ( p < 0.05). In conclusion, the significant improvements in average daily gain, feed intake, and nutrient digestibility indicate that Silybum marianum seed extract can positively influence the growth of growing pigs. Finally, natural feed additives like Silybum marianum seed extract may be used as an efficacious growth promoter and ultimately contributing to sustainable pig farming.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135352135","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

Fish oil divergently enriches broiler meat with long chain ω-3 polyunsaturated fatty acids (LCω-3PUFAs) by modulating the ratio of ω-3 to ω-6 PUFAs without disrupting gut morphology and cardio-pulmonary morphometry 鱼油通过调节ω-3和ω-6多不饱和脂肪酸的比例，在不影响肠道形态和心肺形态的情况下，发散性地丰富肉仔鸡长链ω-3多不饱和脂肪酸(LCω-3PUFAs)

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-10-06 DOI: 10.1139/cjas-2022-0143

Md Emran Hossain, Goutam Buddha Das, Priunka Bhowmik, Kona Adhikary, Nahid Sultan, Shilpi Islam, Nasima Akter

{"title":"Fish oil divergently enriches broiler meat with long chain ω-3 polyunsaturated fatty acids (LCω-3PUFAs) by modulating the ratio of ω-3 to ω-6 PUFAs without disrupting gut morphology and cardio-pulmonary morphometry","authors":"Md Emran Hossain, Goutam Buddha Das, Priunka Bhowmik, Kona Adhikary, Nahid Sultan, Shilpi Islam, Nasima Akter","doi":"10.1139/cjas-2022-0143","DOIUrl":"https://doi.org/10.1139/cjas-2022-0143","url":null,"abstract":"A trial was conducted for 35 days to investigate if replacement of soybean oil (SO) for fish oil (FO) influenced average daily feed intake (ADFI), average daily gain (ADG), final live weight (FLW), feed efficiency (FE), haemato-biochemical indices, carcass traits, cardio-pulmonary morphometry, gut morphology, nutrient digestibility, and fatty acid profile of the broiler chicken. A total of 350, day-old Ross-308 male broilers were distributed in a completely randomized design into five dietary treatment groups designated as FO 0% (diet without FO, i.e., 100% SO), FO 25% (diet containing 25% FO + 75% SO), FO 50% (diet containing 50% FO + 50% SO), FO 75% (diet containing 75% FO + 25% SO), and FO 100% (diet containing 100% FO). Each treatment was replicated seven times containing 10 birds per replicate. Results indicated that complete replacement of SO for FO increased 4.7% FLW, 12.4% ADFI, 3.9% ADG, 16.2% HDL, and 8.6% CP. Although, FO contained 471.1% more ∑LCω-3PUFAs than SO, the FO-supplemented breast meat was enriched with net increment of 45.0% ∑LCω-3PUFAs and 81.0% ∑ω-3: ∑ω-6 at the expense of 7.1% FE and 26.8% MDA. Complete replacement of SO for FO did not compromise net profit. Hence, replacement of SO for FO may be commercially plausible.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135352016","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

Quantification of biogenic amines and adaptation of an index as a quality indicator of rendered pig meals 生猪饲料中生物胺的定量测定及其质量指标的适用性

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-09-29 DOI: 10.1139/cjas-2023-0029

Cristiéle Lange Contreira, Larissa Rossett Corezzolla, Gizelle Cristina Bedendo, Everton Luis Krabbe, Edenilse Gopinger, Valdir Silveira de Avila, Fernando Rutz

{"title":"Quantification of biogenic amines and adaptation of an index as a quality indicator of rendered pig meals","authors":"Cristiéle Lange Contreira, Larissa Rossett Corezzolla, Gizelle Cristina Bedendo, Everton Luis Krabbe, Edenilse Gopinger, Valdir Silveira de Avila, Fernando Rutz","doi":"10.1139/cjas-2023-0029","DOIUrl":"https://doi.org/10.1139/cjas-2023-0029","url":null,"abstract":"The objective of this study was to quantify biogenic amines and to adapt equations for the calculation of the biogenic amine index (BAI) in rendered pig carcass meals (RPCM). Samples of RPCM from three different origins were evaluated: Group 1—experimentally produced meal; Group 2—meal produced in a plant dedicated to rendering pigs dead on the farm due to non-infectious causes; and Group 3—meal produced in commercial rendering plants. Group 1 meals were produced from sow carcasses that were stored either under environmental temperature (ET = 25 °C) or refrigeration temperature (RT = −6 °C), and their biogenic amine contents were analyzed at 0, 24, 48, and 72 h of storage. The levels of the biogenic amines phenylethylamine, putrescine, cadaverine, histamine, tyramine, spermidine, and spermine of all meals were determined by high-performance liquid chromatography, and their BAIs were calculated. Group 1 meals stored at ET presented higher phenylethylamine, putrescine, cadaverine, and tyramine contents compared with those stored at RT after 24 h storage, whereas spermidine and spermine contents decreased after 24 h of storage at ET. The adapted BAI can be used as a quality indicator of RPCM.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135199228","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 Chinese herbal plant extracts on diarrhea rate, intestinal morphology, nutrient digestibility, and immunity of weaned piglets 中草药植物提取物对断奶仔猪腹泻率、肠道形态、营养物质消化率和免疫力的影响

4区农林科学

Canadian Journal of Animal Science Pub Date : 2023-09-20 DOI: 10.1139/cjas-2023-0008

Shuo Li, Mingjing Sui, Fengyang Wu, Xiang Chen, Baojiang Chen, Langqun Yao

{"title":"Effects of Chinese herbal plant extracts on diarrhea rate, intestinal morphology, nutrient digestibility, and immunity of weaned piglets","authors":"Shuo Li, Mingjing Sui, Fengyang Wu, Xiang Chen, Baojiang Chen, Langqun Yao","doi":"10.1139/cjas-2023-0008","DOIUrl":"https://doi.org/10.1139/cjas-2023-0008","url":null,"abstract":"This experiment aimed to establish the effects of Chinese herbal plant extracts compound (Astragalus root, Eucommia bark, Honeysuckle, and Quassic) to replace antibiotics on diarrhea rate, intestinal morphology, nutrient digestibility, and immunity of weaned piglets. In a 21 day experiment, 180 weaned piglets were randomly allocated to four dietary treatments, including a basal diet supplemented with 0 + 250 g/t oxytetracycline calcium and 50 g/t virginiamycin (control), 400 (T1), 500 (T2), and 600 (T3) g/t Chinese herbal plant extracts compound. The results showed that diets supplemented with Chinese herbal plant extracts significantly increased the number of Lactobacillus and Bifidobacterium in feces of weaned piglets, the villus height and ratio of villus height to crypt depth of jejunum and ileum, the levels of immunoglobulin G, immunoglobulin A, immunoglobulin M, interleukin-2, interleukin-4, total protein, albumin, tumor necrosis factor-α, and the apparent digestibility of energy, crude protein, crude fat, crude fiber, calcium, and phosphorus ( P < 0.05). Diets supplemented with Chinese herbal plant extracts significantly reduced the number of Escherichia coli in feces and the diarrhea index ( P < 0.05). In conclusion, dietary supplementation with Chinese herbal plant extracts compound preparation can improve intestinal morphology, feed apparent digestibility, and immunity and reduce diarrhea rate of weaned piglets.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136309250","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