Animal Science Journal最新文献_第9页

Turmeric essential oil improves intestinal integrity, immunological parameters, and performance of broiler chickens under cyclic heat stress 姜黄精油可改善周期性热应激下肉鸡的肠道完整性、免疫学参数和生产性能

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-09-09 DOI: 10.1111/asj.13991

Maíse dos Santos Macário, Ana Paula Del Vesco, Claudson Oliveira Brito, Isis Regina Santos de Oliveira, Thaís Pacheco Santana, Angélica de Souza Khatlab, Leandro Teixeira Barbosa

{"title":"Turmeric essential oil improves intestinal integrity, immunological parameters, and performance of broiler chickens under cyclic heat stress","authors":"Maíse dos Santos Macário, Ana Paula Del Vesco, Claudson Oliveira Brito, Isis Regina Santos de Oliveira, Thaís Pacheco Santana, Angélica de Souza Khatlab, Leandro Teixeira Barbosa","doi":"10.1111/asj.13991","DOIUrl":"https://doi.org/10.1111/asj.13991","url":null,"abstract":"This study aimed to examine whether dietary supplementation of broiler chickens with turmeric essential could mitigate the effects of cyclic heat stress conditions. Intestinal and immunological parameters and gene expression were evaluated during the grower phase. A total of 320 21-day-old male Cobb 500 broilers were distributed according to a completely randomized design with a 4 (diet) × 2 (environment) factorial arrangement and eight replications of five birds each. Dietary treatments consisted of a basal diet without essential oil (EO, negative control) and three diets containing low (100 mg kg−1), intermediate (200 mg kg−1), or high (300 mg kg−1) levels of turmeric EO. In the heat stress group, dietary supplementation with turmeric EO at 100 and 200 mg kg−1 improved body weight, feed conversion, breast yield, and relative liver weight. These supplementation levels reduced villus width, increased villus/crypt ratio, reduced the H/L ratio, and improved hepatic (HSP70 and SREBP1) and intestinal (OCLN) gene expression in birds under heat stress. These findings support the hypothesis that turmeric EO can be used to improve or restore intestinal integrity, modulate inflammation parameters, and, consequently, enhance the performance of broilers challenged by cyclic heat stress.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142165478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Comparison of nutrient supply from the dam to fetus and placental development in Holstein and Japanese black cows pregnant with similar or different fetus breeds 比较荷斯坦奶牛和日本黑奶牛在怀有相似或不同胎儿品种时从母体到胎儿的营养供应和胎盘发育情况。

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-08-22 DOI: 10.1111/asj.13989

Riku Mashimo, Yuka Kumazaki, Kaori Nakagami, Nobuyuki Kusaba, Chiho Kawashima

{"title":"Comparison of nutrient supply from the dam to fetus and placental development in Holstein and Japanese black cows pregnant with similar or different fetus breeds","authors":"Riku Mashimo, Yuka Kumazaki, Kaori Nakagami, Nobuyuki Kusaba, Chiho Kawashima","doi":"10.1111/asj.13989","DOIUrl":"10.1111/asj.13989","url":null,"abstract":"A lower nutrient supply from Holstein (HOL) dams to beef fetuses than HOL fetuses has been demonstrated, but the underlying factors remain unclear. We investigated maternal, umbilical vein, and calf blood glucose and amino acid concentrations at calving, along with placental development at term, in HOL dams with similar fetuses (HOL-HOL, n = 12), F1 crosses (HOL × Japanese Black [JB]; HOL-F1, n = 4), JB fetuses (HOL-JB, n = 7), and JB dams with similar fetuses (JB-JB, n = 11). Calf birth weight, total cotyledonary weight, and surface area were greater in HOL-HOL compared to JB-JB or HOL-JB (P < 0.05), whereas those of HOL-F1 were similar. Blood amino acid concentrations in the umbilical veins and calves were similar among HOL-HOL, HOL-F1, and HOL-JB. Calf blood glucose concentrations were lower in HOL-F1 than HOL-HOL (P < 0.05), despite similar maternal blood glucose levels. HOL-JB exhibited higher maternal, umbilical vein, and calf blood glucose concentrations than JB-JB (P < 0.05). Therefore, the glucose supply to the fetus may be inhibited in HOL-F1 due to maternal-fetal breed differences. Higher maternal blood glucose concentrations in HOL-JB may result in elevated fetal glucose exposure, potentially affecting postnatal growth and metabolism.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142035034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 polymorphisms of calpain1 and calpain3 genes and their effects on growth, carcass, and meat quality traits in Betong chicken (KU line) 钙蛋白酶1和钙蛋白酶3基因的遗传多态性及其对贝通鸡（KU品系）生长、胴体和肉质性状的影响

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-08-21 DOI: 10.1111/asj.13986

Panatda Bungsrisawat, Sornthep Tumwasorn, Wiriya Loongyai, Sasitorn Nakthong, Pattama Nitthaisong, Hidenori Tanaka, Ryo Akashi, Panwadee Sopannarath

{"title":"Genetic polymorphisms of calpain1 and calpain3 genes and their effects on growth, carcass, and meat quality traits in Betong chicken (KU line)","authors":"Panatda Bungsrisawat, Sornthep Tumwasorn, Wiriya Loongyai, Sasitorn Nakthong, Pattama Nitthaisong, Hidenori Tanaka, Ryo Akashi, Panwadee Sopannarath","doi":"10.1111/asj.13986","DOIUrl":"https://doi.org/10.1111/asj.13986","url":null,"abstract":"Betong chicken (KU line) is a slow-growing Thai native chicken used for meat production. The objectives of this study were to identify polymorphisms of the calpain1 (CAPN1) and calpain3 (CAPN3) genes and to investigate their effects on growth, carcass, and meat quality traits in Betong chickens (KU line). A sample of 252 Betong chickens (KU line) was screened for CAPN1 and CAPN3 polymorphisms. The polymorphisms of CAPN1 were detected using gel electrophoresis and DNA sequencing, whereas the polymorphisms of CAPN3 were identified using restriction fragment length polymorphism. Polymorphisms were detected in both CAPN1 (AA, AB, and BB genotypes) and CAPN3 (CC, CT, and TT genotypes). The frequency of the B allele was higher than for the A allele (0.78 and 0.22, respectively) in CAPN1, while the C allelic frequency was higher than for the T allele (0.54 and 0.46, respectively) in CAPN3. The CAPN1 genotype and the combination of the CAPN1 and CAPN3 genotypes could be used as genetic markers for meat lightness. The CAPN3 could be useful for increasing body weight, live weight, and breast meat weight in Betong chickens (KU line).","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142013607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 pre-heating of broiler breeder's eggs on hatchability, chick quality, overall performance, and welfare traits in broilers 预热肉种鸡鸡蛋对肉鸡孵化率、雏鸡质量、总体性能和福利特征的影响。

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-08-20 DOI: 10.1111/asj.13987

Kadir Erensoy, Musa Sarıca, Moise Noubandiguim, Numan Karaçay

{"title":"Effects of pre-heating of broiler breeder's eggs on hatchability, chick quality, overall performance, and welfare traits in broilers","authors":"Kadir Erensoy, Musa Sarıca, Moise Noubandiguim, Numan Karaçay","doi":"10.1111/asj.13987","DOIUrl":"10.1111/asj.13987","url":null,"abstract":"This study aimed to investigate the effects of varying pre-heating practices (12-h: PH12; 8-h: PH8; 4-h: PH4 and 0-h or no pre-heating: PH0) of broiler breeder's eggs prior to incubation on hatching, chick quality, overall performance, and welfare traits in broilers. A total of 960 eggs obtained from Ross 308 breeders at 45 weeks were used for pre-heating manipulations and 480 chicks for broiler experiment. Apparent fertility was higher in PH0 (94.6%) and PH4 (94.5%) treatments than in PH8 (91.6%) and PH12 (90.6%); hatchability of fertile and set eggs was higher in PH4 and PH12. PH4, PH8, and PH12 treatments significantly accelerated the average hatching time compared to PH0. General chick quality was not affected by pre-heating treatments. However, chick length was significantly lower in PH0 chicks than PH12. Pre-heating manipulations did not change the overall broiler performance. Welfare characteristics were similar among treatments, while only hock burn was better in PH8 broilers. In conclusion, pre-heating of broiler breeder eggs for 4 to 12 h improved hatching success by lowering embryonic mortality and shortened the average hatching time compared to no pre-heating, and did not cause any significant alteration in chick quality, overall performance, and welfare characteristics.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.13987","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142008143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genome-wide association study for conformation traits in Ayrshire cattle 艾尔夏牛体形特征的全基因组关联研究。

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-08-20 DOI: 10.1111/asj.13985

Anastasiia Ivanovna Azovtseva, Marina Vladimirovna Pozovnikova, Yuriy Sergheevich Shcherbakov, Olga Vasilievna Tulinova, Elena Anatolyevna Romanova, Anna Evgenievna Ryabova

{"title":"Genome-wide association study for conformation traits in Ayrshire cattle","authors":"Anastasiia Ivanovna Azovtseva, Marina Vladimirovna Pozovnikova, Yuriy Sergheevich Shcherbakov, Olga Vasilievna Tulinova, Elena Anatolyevna Romanova, Anna Evgenievna Ryabova","doi":"10.1111/asj.13985","DOIUrl":"10.1111/asj.13985","url":null,"abstract":"The genetic improvement of cattle is able to provide the highest economic efficiency. Animals with best external features often have the highest indicators of productivity and nonspecific resistance. In order to identify single nucleotide polymorphism (SNP) markers and genes, potentially responsible for conformation traits of Ayrshire cattle, we conducted a genome-wide association study (GWAS). Blood samples were collected from 495 first-calf Ayrshire heifers. For all animals, a linear assessment was carried out, which consisted of 17 conformation traits and 13 exterior flaws. Our study revealed a total of 43 SNPs on chromosomes BTA1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 14, 16, 18, 19, 22, 25, 27, and 29 associated with conformation traits, four of which have met the significance threshold. Among these four significant SNPs, genes associated with exterior flaws such as tilted udder floor and weak loin and SNPs associated with weak back were identified. The markers and genes identified in the corresponding genomic regions are promising candidates for further investigation of the biological processes involved in cow exterior formation and function. The results obtained, including the MYO1B gene associated with weak loin, PEPD and ZFC3H1 genes related to tilted udder floor, and EDNRB gene associated with weak back can be effectively used as molecular markers in genomic selection programs.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142008144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Analysis of the relationship between energy balance and properties of rumen fermentation of primiparous dairy cows during the perinatal period 围产期初产奶牛能量平衡与瘤胃发酵特性之间的关系分析

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-08-20 DOI: 10.1111/asj.13988

Rie Sawado, Ryo Osawa, Hideo Sobajima, Noboru Hayashi, Itoko Nonaka, Fuminori Terada, Makoto Mitsumori

{"title":"Analysis of the relationship between energy balance and properties of rumen fermentation of primiparous dairy cows during the perinatal period","authors":"Rie Sawado, Ryo Osawa, Hideo Sobajima, Noboru Hayashi, Itoko Nonaka, Fuminori Terada, Makoto Mitsumori","doi":"10.1111/asj.13988","DOIUrl":"10.1111/asj.13988","url":null,"abstract":"Short-chain fatty acids (SCFAs) produced in the rumen are key factors affecting dairy cows' energy balance (EB). This study aimed to quantitatively evaluate the effects of SCFAs production on EB in dairy cows. Primiparous dairy cows were divided into high non-esterified fatty acid (NEFA; group H) and low NEFA (group L) groups based on their blood NEFA levels at week 3 postpartum, which served as an indicator of EB. The amounts of SCFAs produced in the rumen, including acetate, propionate, and butyrate (SCFAsP), were calculated using the predicted rumen volume. Because there were no differences between the groups in SCFAsP/dry matter intake, whereas 4% fat-corrected milk (FCM)/SCFAsP was significantly higher in group H, it was suggested that more body fat was mobilized for milk production in group H. However, group L, which showed better EB, had propionate dominant and lower FCM/SCFAsP and milk energy/SCFAs energy at 3 and 7 weeks postpartum, indicating that group L had a better energy supply for milk production. These results suggest that SCFAsP produced by rumen fermentation and the composition of SCFAs in the rumen affect milk production and EB.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142008142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Production, reproduction, and some adaptation characteristics of Romanov sheep raised under humid temperate climate 在温带湿润气候条件下饲养的罗曼诺夫绵羊的生产、繁殖和一些适应特征。

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-08-06 DOI: 10.1111/asj.13984

Orhan Akat, Mehmet Akif Cam

{"title":"Production, reproduction, and some adaptation characteristics of Romanov sheep raised under humid temperate climate","authors":"Orhan Akat, Mehmet Akif Cam","doi":"10.1111/asj.13984","DOIUrl":"10.1111/asj.13984","url":null,"abstract":"This study aimed to determine the fertility and growth traits, viability, and body measurements of the Romanov sheep under breeder conditions in the humid region of Turkey. The animal material of the research consisted of sheep imported from Ukraine in 2019. In the study, there are two farms with 31 and 44 ewes in the first year and three farms with 45, 34, and 32 ewes in the second year. The reproductive performances of 186 sheep and lambs in three different farms were examined, and nine rams, one ram per 20 sheep, were used for mating. Two-year (2020 and 2021) data on the reproductive performance of pure Romanov ewes, survivability in ewes and lambs, and development characteristics in lambs were used in the present study. The conceived rate (88.17%), fecundity at birth (1.42) and at weaning (1.29), litter size at birth (1.76) and weaning (1.56), single (50.98%), twin (41.83%), and triplet birth rate (6.54%), and abortion rate (6.71%) were determined for 2 years average. Birth and weaning weights of lambs were affected by sex and birth type (p < 0.01). The Romanov sheep and their lambs did not satisfy the breeder regarding reproductive performance and lamb development.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.13984","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141892666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Failure of isoxsuprine HCl to increase sheep fertility after cervical versus laparoscopic AI using chilled semen at different durations 使用冷冻精液进行宫颈人工授精和腹腔镜人工授精后，盐酸异舒普林未能提高绵羊的繁殖力。

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-08-01 DOI: 10.1111/asj.13973

Bülent Bülbül, Cemal Dayanıklı, Ebru Şengül, Aydın Turan, Muhammet Aksoy, Zekariya Nur

{"title":"Failure of isoxsuprine HCl to increase sheep fertility after cervical versus laparoscopic AI using chilled semen at different durations","authors":"Bülent Bülbül, Cemal Dayanıklı, Ebru Şengül, Aydın Turan, Muhammet Aksoy, Zekariya Nur","doi":"10.1111/asj.13973","DOIUrl":"10.1111/asj.13973","url":null,"abstract":"To improve the fertility of cervical artificial insemination (AI) in sheep, we investigated isoxsuprine HCl usage on the cervical passage during cervical AI. We also compared cervical and laparoscopic AI fertility results of using chilled semen at different durations. Semen was collected from rams and diluted as 20 × 106 or 400 × 106 spermatozoa/straw for laparoscopic and cervical AI, respectively, and chilled to 4°C within 2 h. Sheep were inseminated with chilled semen for 8 or 24 h via the laparoscopic or cervical AI method. Moreover, some of the cervical inseminated sheep were injected intramuscularly with 0.5 mg/kg of isoxsuprine HCl 15 min before AI. As a result, the use of isoxsuprine HCl did not affect cervical transit and fertility. In addition, fertility was affected by the storage duration of the semen; laparoscopic AI was more successful than cervical AI in terms of fertility; if cervical AI is performed, the duration between semen collection and AI should be less than 8 h after chilling the semen at 4°C, and if laparoscopic AI is performed, the time between semen collection and insemination can be up to 24 h after chilling the semen at 4°C. Longer storage periods should be studied.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.13973","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141858761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of cashew nutshell liquid on milk production and methane emission of dairy cows in a farm condition 腰果壳液对牧场奶牛产奶量和甲烷排放的影响

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-07-25 DOI: 10.1111/asj.13983

R-Jun Frederick Avelino Gaspe, Taketo Obitsu, Toshihisa Sugino, Yuzo Kurokawa, Yuma Kuroki

{"title":"Effects of cashew nutshell liquid on milk production and methane emission of dairy cows in a farm condition","authors":"R-Jun Frederick Avelino Gaspe, Taketo Obitsu, Toshihisa Sugino, Yuzo Kurokawa, Yuma Kuroki","doi":"10.1111/asj.13983","DOIUrl":"10.1111/asj.13983","url":null,"abstract":"This study aimed to clarify the efficacy of cashew nutshell liquid (CNSL) in methane emissions, milk production, and rumen fermentation of lactating cows in practical conditions. Ten Holstein lactating cows were used in a free-stall barn with a milking robot. Two treatments were arranged as control (no CNSL additive, n = 5) or CNSL addition (10 g/day of CNSL, n = 5) for 21 days after the 7-day preliminary period. A sniffer method was applied to predict daily methane production and methane conversion factor (MCF). In vitro, rumen gas production was also tested using the rumen fluid of individual cows. Daily dry matter intake (DMI), eating time, milk production, and methane production were not affected by the CNSL addition. However, methane production per DMI and MCF were lower (p ≤ 0.01) for the CNSL cows than those for the control cows. Ruminal total volatile fatty acid (VFA) concentration and acetate proportion tended to be lower (p < 0.15) for CNSL cows. A tendency to decrease (p < 0.10) in methane was also observed in the in vitro incubation with the rumen fluid obtained from the CNSL cows compared with those from the control cows. These results suggest that adding CNSL to diets could reduce the methane yield of cows in practical conditions.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/asj.13983","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141756691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rumen-protected methionine modulates body temperature and reduces the incidence of heat stress temperatures during the hottest hours of the day of grazing heat-stressed Bos indicus beef cows 瘤胃保护蛋氨酸可调节体温，降低热应激肉牛在一天中最热时段的热应激温度。

IF 1.7 3区农林科学

Animal Science Journal Pub Date : 2024-07-25 DOI: 10.1111/asj.13980

Vinicius de Souza Izquierdo, Bernardo da Silva Menezes, Matheus Gomes Lopes, Edgard Gonçalves Malaguez, Fernanda Lopes, Fabricio Molina Pereira, Cassio Cassal Brauner, Philipe Moriel, Marcio Nunes Corrêa, Eduardo Schmitt

{"title":"Rumen-protected methionine modulates body temperature and reduces the incidence of heat stress temperatures during the hottest hours of the day of grazing heat-stressed Bos indicus beef cows","authors":"Vinicius de Souza Izquierdo, Bernardo da Silva Menezes, Matheus Gomes Lopes, Edgard Gonçalves Malaguez, Fernanda Lopes, Fabricio Molina Pereira, Cassio Cassal Brauner, Philipe Moriel, Marcio Nunes Corrêa, Eduardo Schmitt","doi":"10.1111/asj.13980","DOIUrl":"10.1111/asj.13980","url":null,"abstract":"This study evaluated the effects of supplementation of rumen-protected methionine (RPM) on body thermoregulation and conception rate of Nelore cows exposed to high temperature–humidity index (THI). On −31 days before the artificial insemination protocol, 562 lactating, multiparous cows were assigned to receive (MG) or not (CG) RPM supplementation (3 g/cow mixed into 100 g of mineral supplement). Both groups remained in tropical pastures and received supplementation for 77 days. A subset of cows (n = 142) remained with an intravaginal thermometer collecting intravaginal temperature (IT). The respective minimum, average, and maximum environmental THI were 72.8, 78.0, and 83.3. Effects of treatment × hour of the day were detected (P < 0.0001) for IT. From 1330 to 1730 h and 1830 to 1900 h, IT was higher (P < 0.05) for CG versus MG cows when exposed to moderate and high THI. The supplementation with RPM did not affect conception rate (CG = 64.4% vs. MG = 58.2%; P > 0.05). In conclusion, 3 g of RPM supplementation lowered internal body temperature and possibly altered critical THI threshold in Nelore cows with no impact on reproduction.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"95 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141756692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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