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基础摘要（未启用或未成功调用大模型）：Enteric methane emissions (EMEs) from grazing dairy systems in tropical regions remain poorly quantified, increasing uncertainty in national greenhouse gas inventories. This study aimed to quantify EMEs using electronic spirometry masks (ESM...

基础摘要（未启用或未成功调用大模型）：Understanding behavioral responses of dairy cows to thermal load under different milking-system environments is essential for welfare monitoring in subtropical production systems, yet field-based evidence remains limited. This study compared...

基础摘要（未启用或未成功调用大模型）：Introduction The objective of this study was to evaluate the fetal programming effects of removing maternal heat abatement during late gestation on offspring growth, thermotolerance, physiological responses, and liver gene expression during ...

基础摘要（未启用或未成功调用大模型）：Genetic selection has effectively increased milk, fat, and protein yields in dairy cattle populations. This study aimed to identify genomic regions and candidate genes associated with milk composition traits in Brazilian Holstein cattle usin...

基础摘要（未启用或未成功调用大模型）：In genetics and evolutionary biology, selection signatures refer to distinct genomic patterns that reflect the action of natural and artificial selection on populations over time. Detecting such signatures provides critical insights into ada...

基础摘要（未启用或未成功调用大模型）：Heat stress affects fertility and productivity in dairy cattle, yet field studies from the Mediterranean area remain limited. This retrospective, observational cohort study aimed to investigate seasonal variation in: (1) conception and pregn...

基础摘要（未启用或未成功调用大模型）：Listeria ( L. ) ivanovii is a Gram-positive, facultatively intracellular rod-shaped bacterium. It is predominantly associated with animal infections, particularly in ruminants. Unlike L. monocytogenes , which is widely recognised as a major ...

基础摘要（未启用或未成功调用大模型）：The aim of the present study was to infer trait responses of Holstein-Friesian (HF) cows with differing genetic merits for milk yield and possible genotype x feeding interactions (GFI) considering organic high input (HI) versus organic low i...

基础摘要（未启用或未成功调用大模型）：Red clover extract (RCE) is rich in isoflavones, which have been reported to improve nitrogen utilization in dairy diets. Therefore, the objective of this study was to evaluate the effects of partially replacing soybean meal (SBM) with RCE p...

基础摘要（未启用或未成功调用大模型）：The objective of this study was to evaluate the effect of different doses of an exogenous fibrolytic enzyme (EFE) product, containing xylanase with secondary cellulase activity, derived from Trichoderma citrinoviride, on productive performan...

基础摘要（未启用或未成功调用大模型）：The somatic cell count (SCC) of individual cows plays an important role in the assessment of udder health. Until now, individual milk samples have been required to determine the SCC of each cow. This study introduces a novel measurement meth...

基础摘要（未启用或未成功调用大模型）：Training calves to drink milk independently from an automated milk feeder (AMF) requires substantial labor, with calves taking several days to learn; however, it is unknown if feeding behavior can predict successfully trained calves. The obj...

基础摘要（未启用或未成功调用大模型）：The aim of this study was to evaluate the short-term impacts of both subacute ruminal acidosis (SARA) and hindgut acidosis (HGA) on the ruminal and fecal fermentation and microbiome of dairy cows. The study was conducted as a change-over des...

基础摘要（未启用或未成功调用大模型）：Heat stress adversely affects the productivity of the herd, especially the reproductive performance of cattle, posing a persistent challenge for cattle farming. This issue is particularly evident in Bos taurus (taurine) breeds of European or...

基础摘要（未启用或未成功调用大模型）：In response to growing public concern, many dairy organizations, from farmer-led organizations to processors and retailer based, have developed quality assurance (QA) programs focused on food safety, product quality, animal welfare, biosecur...

基础摘要（未启用或未成功调用大模型）：Since the initial detection in dairy herds in March 2024, Highly Pathogenic Avian Influenza H5N1 has spread extensively in the United States with over 1000 confirmed cases in dairy cattle across 17 states. Data on within-herd transmission of...

基础摘要（未启用或未成功调用大模型）：This study investigated how the lactation stage and the main behavioral activities of dairy cows influence enteric methane emissions. The research trial was conducted on 39 Italian Simmental dairy cows reared in a commercial dairy farm. Each...

基础摘要（未启用或未成功调用大模型）：Yak (Bos grunniens) is a unique bovine species adapted to extremely harsh environmental conditions in high-altitude regions. Despite its crucial roles in the animal industry, knowledge of yak reproduction and embryonic development remains se...

基础摘要（未启用或未成功调用大模型）：Bovine respiratory disease complex is a common disease which commonly affects calves in the form of bronchopneumonia. There is currently no affordable perfectly accurate reference standard test and the routine diagnosis is commonly based on ...

基础摘要（未启用或未成功调用大模型）：We assessed the effect of rumen fermentable starch (RFS; 7-h in vitro starch digestibility) in diets that contained low or moderate physically effective undegraded NDF after 240-h of in vitro fermentation (peuNDF240) on DMI, milk yield and c...

基础摘要（未启用或未成功调用大模型）：Milk production in Bangladesh has been increasing despite farmers being resource-poor. The expansion of commercial milk collection centers has promoted market-oriented production; however, poor food safety practices (FSPs) have resulted in d...

基础摘要（未启用或未成功调用大模型）：Supplementing dairy cow diets with omega-3 fatty acids has been an alternative nutritional intervention to reduce systemic inflammation and improve reproductive function. Docosahexaenoic acid (C22:6 n-3; DHA) is one of the omega-3 fatty acid...

基础摘要（未启用或未成功调用大模型）：Methane emissions from ruminants significantly contribute to greenhouse gases, making it crucial for sustainable livestock breeding to understand how both genetic and microbial factors influence methane production. We compared the heritabili...

基础摘要（未启用或未成功调用大模型）：Managing inbreeding while maintaining genetic gain is a critical challenge in dairy cattle breeding programs. Current North American genetic evaluations adjust breeding values for expected future inbreeding using genomic relationship matrix ...

基础摘要（未启用或未成功调用大模型）：In the livestock industry, feed is the largest expense, driving interest in breeding more feed-efficient animals. Residual feed intake (RFI) is a widely used measure of feed efficiency, accounting for actual feed intake versus expected requi...

基础摘要（未启用或未成功调用大模型）：In this study, we systematically compared the digestion characteristics of cow, goat and donkey β-casein (β-CN) and the differences in their peptide profiles by simulating an infant digestion model in vitro. The results showed that the hydro...

基础摘要（未启用或未成功调用大模型）：This study investigated how supplementing a commercially available rumen-protected methionine (RPM) to heat stressed Holstein cows during late gestation and early lactation affects immune, metabolic, and inflammatory biomarkers in the cow an...

基础摘要（未启用或未成功调用大模型）：This study determined the effects of inclusion of field peas in the diet of lactating dairy cows on milk production, blood metabolites, rumen fermentation, and the rumen bacterial community. Twelve mid-lactation Holstein cows were used in a ...