Predicting productive, health, and reproductive traits in Mexican Holstein cattle using single nucleotide polymorphisms, haplotypes, and runs of homozygosity [0.03%]
基于单核苷酸多态性、单体型和纯合度运行预测墨西哥荷斯坦奶牛的生产性能、健康和繁殖性状
José G Cortes-Hernández,Guillermo Martinez-Boggio,Francisco Peñagaricano et al.
José G Cortes-Hernández et al.
The aim of this study was to evaluate the use of 3 different genomic relationship matrices built from SNPs, haplotypes (HAP), and runs of homozygosity (ROH), on phenotype predictive ability and estimated genetic variance of milk yield, SCS,...
Identifying data anomalies in milk component measurements from partial-day milking records [0.03%]
基于分段挤奶记录识别牛奶成分测定中的数据异常现象
Xiao-Lin Wu,Malia J Caputo,Chip Donatone et al.
Xiao-Lin Wu et al.
High-quality milk and milk component data are crucial for accurate genetic evaluations and effective herd management. However, data recording errors can compromise the validity of downstream decisions. In a recent study, we proposed using i...
Dietary starch levels modulate production performance and whole-body nutrient metabolism in dairy cows [0.03%]
淀粉水平调控奶牛的生产性能和机体营养物质代谢
Usman Arshad,Martin Huser,Mario A Barrientos-Blanco et al.
Usman Arshad et al.
The objective of this study was to evaluate the effects of increasing dietary starch concentrations on production performance and whole-body nutrient metabolism in lactating dairy cows. Twelve multiparous Holstein cows at mean (±SD) 89 ± ...
Reproductive performance of dairy cows assigned to either a combination of estrus detection using sensors and timed artificial insemination or to a synchronization program [0.03%]
使用传感器检测发情并配合定时人工授精的方案与同期发情方案的繁殖性能对比试验
Alessio Valenza,Alex Bach
Alessio Valenza
At calving, 2,213 Holstein cows from 5 farms were enrolled in a study to establish potential associations between postcalving health disorders and reproductive performance and to determine the effectiveness in achieving pregnancy at first a...
Meta-analysis of supplemental methionine effects on plasma amino acid concentrations in dairy cows [0.03%]
关于蛋氨酸补充对奶牛血浆氨基酸浓度影响的meta分析研究进展
G I Zanton
G I Zanton
Increasing metabolizable Met (mMet) through feeding supplemental rumen-protected Met to dairy cows is a common component of balancing rations for Met. Changes in plasma Met (pMet) brought about by this practice may affect the metabolism of ...
Genetic variation in cows' response to methane-mitigating feed additives [0.03%]
奶牛对减少甲烷排放的饲料添加剂的反应存在基因变异
Bj Rg Heringstad,Karoline A Bakke
Bj Rg Heringstad
Feed additives such as 3-nitrooxypropanol (3-NOP) can reduce a dairy cow's enteric methane (CH4) emissions. Our study aimed to examine whether there is genetic variation in the cow's response in reduction of CH4 emission after receiving 3-N...
Evaluation of propidium monoazide for 16S ribosomal RNA metabarcoding assessment of microbial communities in 60-day ripened raw goat milk cheese [0.03%]
评估propidium monoazide对60天陈化山羊奶干酪中微生物群落的16S核糖体RNA分子条形码鉴定的效果
Sintia Naianne Pereira Feitoza,Laiorayne Araújo de Lima,Carla Aparecida Soares Saraiva et al.
Sintia Naianne Pereira Feitoza et al.
Cheese ripening is a complex microbial process marked by significant shifts in microbial composition. Considering that propidium monoazide (PMA) depletes DNA from nonviable cells, we hypothesized that PMA treatment of cheese samples could a...
Exploratory analysis of associations between postpartum body condition changes measured by an automated 3-dimensional camera and reproductive outcomes measured by in-line milk progesterone analysis [0.03%]
自动化三维相机产后体况变化与产奶量黄体酮分析得出的繁殖力关联性探索性研究
Alessandro Frizza,Erminio Trevisi,Luca Cattaneo
Alessandro Frizza
Our objective was to evaluate the associations of postpartum BCS changes, as predicted by automatic monitoring using 3-dimensional (3D) camera technology after calving, with milk yield and reproductive outcomes assessed both from in-line mi...
Predicting individual dry matter intake in Holstein × Gyr cows using behavior-monitoring sensor, phenotypic, and weather data with supervised machine learning [0.03%]
基于监督机器学习使用行为监测传感器、表型和天气数据预测荷斯坦× Gir奶牛的个体干物质摄入量
Camila S da Silva,Tadeu E da Silva,Anna L L Sguizatto et al.
Camila S da Silva et al.
Accurate estimation of DMI is essential for optimizing nutrition, efficiency, and economic performance in modern dairy herds. However, most existing equations to estimate DMI are designed for herd-level predictions in purebred Holstein cows...
Development of a health subindex for genetic selection of bulls and cows in Canadian dairy operations [0.03%]
加拿大乳牛场公牛和母牛遗传选育的健康子指数的研发
Douglas W Bjelland,John J Crowley,Caeli M Richardson et al.
Douglas W Bjelland et al.
This study presents the development of an updated health subindex (HSI) for genetic selection in Canadian Holstein dairy cattle, aimed at enhancing the genetic progress for health-related traits. The HSI was independently designed as part o...