Association of genomic prediction for fertility traits with response to prostaglandin F2α in Holstein cattle [0.03%]
基因预测的生育性状与荷斯坦奶牛前列腺素F2α的反应之间的关联分析
T G Guida,S Borchardt,T A Burnett et al.
T G Guida et al.
The objective of this observational study was to evaluate the association between genomic fertility traits, specifically genomic daughter pregnancy rate (gDPR) and genomic cow conception rate (gCCR), and the estrous response following PGF2...
Effects of breed and colostrum replacer quantity on lymphocyte populations in the blood of Holstein and Holstein × Angus calves [0.03%]
品种和初乳替代品的数量对荷斯坦牛及荷斯坦×安格斯杂交牛犊血液淋巴细胞种群的影响
M Kovacs,H McCarthy,T Chapelain et al.
M Kovacs et al.
The objective of this study was to explore the effects of breed and colostrum replacer (CR) quantity fed at birth on lymphocyte populations in the peripheral blood of Holstein (H) and Holstein × Angus (C) crossbred calves. Male H (n = 10) ...
Methods for estimating milk production of dairy cows with full cow-calf contact [0.03%]
带犊乳牛牛奶产量估算方法
C L van Zyl,A T M van Knegsel,S Agenäs et al.
C L van Zyl et al.
Dairy cows with full cow-calf contact can nurse their calves and perform maternal behaviors without hindrance. Owing to the unrestricted suckling, the total milk production of the suckled cows (i.e., machine milk yield [MMY] and milk consum...
Effects of encapsulated algae oil supplements on the production of docosahexaenoic acid-enriched milk in mid-lactation dairy cows [0.03%]
以中乳期奶牛生产高DHA牛奶效果的研究——藻油胶囊对奶牛乳脂型构造的影响
Yan Li,Hongling Jiang,He Zheng et al.
Yan Li et al.
This study was conducted to assess the effects of encapsulated algae oil (EAO) supplementation on the production of docosahexaenoic acid (DHA)-enriched milk in mid-lactation dairy cows. A total of 60 mid-lactation dairy cows were randomly a...
Detection of airborne bovine coronavirus RNA in pen environments and exhaled breath of calves [0.03%]
从牛圈环境和犊牛呼出的气中检测到空气中存在的牛冠状病毒RNA
Joanna Urbaniec,Lauren Brabiner,Peers Davies et al.
Joanna Urbaniec et al.
Bovine respiratory disease (BRD) is a significant economic and welfare concern in the cattle industry. Commingling (mixing) events create environments conducive to the spread of bovine coronavirus (BCV), a common calf BRD pathogen. Although...
Ultra-high-performance liquid chromatography high-resolution mass spectrometry-based screening of purine and pyrimidine metabolites in cow milk collected across 4 different seasons [0.03%]
基于超高性能液相色谱高分辨质谱的四季奶牛乳嘌呤和嘧啶代谢物筛查
Michela Errico,Gabriele Rocchetti,Marco Lapris et al.
Michela Errico et al.
Milk nucleotides have received little attention compared with other metabolite classes, despite their central role in rumen microbial activity and potential value as markers of nutritional and environmental dynamics. This study applied unta...
Provision of active ventilation via solar-powered fans to outdoor hutches during summer improves immune responses of dairy heifers [0.03%]
夏季通过太阳能风扇向户外牛舍提供主动通风可改善乳牛后备牛的免疫反应
E Tabor,G A Larsen,J Laporta
E Tabor
Despite the preweaning period being critical for immune system development, heat abatement for calves in summer is often overlooked during this early-life period. Herein, we evaluated selected markers of innate and adaptive immunity develop...
Testing preference for corn milling coproducts by lactating Jersey cows [0.03%]
乳汁期娟珊奶牛对玉米加工副产品喜好的检测
K K Buse,M L Jolly-Breithaupt,K J Herrick et al.
K K Buse et al.
Manipulations at the intersection of nutrition, behavior, and management may be an important way to apply novel feeding strategies that take advantage of affordable feeds and a cow's natural behavior to increase feed intake. The grain fuel ...
Risk factors for postcalving intramammary infection with Mycoplasma species in first-lactation cows on a conventional dairy farm: A retrospective case control study [0.03%]
初产牛产后感染支原体的危险因素：一项病例对照研究
Alejandra Zapata-Salazar,Matthias Wieland,Francisco A Leal Yepes
Alejandra Zapata-Salazar
Mycoplasma spp. are highly contagious bacteria that cause chronic, subclinical infections in dairy cattle and are intrinsically resistant to many antimicrobials. This retrospective case control study evaluated whether different calfhood and...
Effects of dietary Bacillus subtilis PB6 supplementation to mid-lactation dairy cows on local inflammatory responses during an intramammary lipopolysaccharide challenge [0.03%]
植物乳杆菌sckl51发酵产物对肉鸡生长性能、免疫机能和肠道健康的影响
T H Swartz,O Reyes,H L Reisinger et al.
T H Swartz et al.
The objectives of this study were to evaluate the effects of dietary Bacillus subtilis PB6 supplementation on inflammatory mediators in milk during an intramammary LPS challenge in dairy cows. A secondary objective was to determine if repea...