Meta-analysis of the effects of the dietary inclusion of brewers grains on feed intake, milk yield, and feed efficiency of lactating dairy cows [0.03%]
关于啤酒糟对泌乳奶牛采食量、产奶量和饲料利用率影响的meta分析研究
S C Chelkapally,T H Terrill,I M Ogunade et al.
S C Chelkapally et al.
Distillery byproducts such as brewers grains (BG) have been widely used in dairy cow diets for decades to reduce diet costs and improve nutrient efficiency. Thus, the objective of this study was to evaluate the magnitude of the effects of d...
Comparing antibiotic treatment at dry-off on one quarter versus all quarters in cows with only one quarter affected with a high somatic cell count or an intramammary infection [0.03%]
仅某个乳区受高体细胞数或乳腺炎感染影响的奶牛在干奶时对一个乳区和所有四个乳区进行抗生素治疗的效果比较
P Silva Boloña,A Valldecabres,C Clabby et al.
P Silva Boloña et al.
The aim of this randomized controlled study was to evaluate, on cows with only one quarter affected at dry-off with an IMI, a high SCC (>200,000 cells/mL), or both, the impact of treating with an antibiotic plus internal teat sealant only t...
Feeding rumen-protected choline to prepartum Holstein cows in negative energy balance increases circulating lipoprotein phosphatidylcholine and triglyceride concentrations [0.03%]
妊娠末期能量负平衡的荷斯坦奶牛饲喂胆碱包被的卵磷脂对血清中脂蛋白型卵磷脂和甘油三酯含量的影响
W A Myers,M G Zenobi,D C Reyes et al.
W A Myers et al.
Rumen-protected choline (RPC) supplementation in dairy cows may increase hepatic phosphatidylcholine (PC) synthesis, thereby promoting triacylglycerol (TAG) secretion within very-low-density lipoproteins. To investigate the effects of dieta...
Effect of frozen storage of bovine colostrum for up to 1 year on concentrations of immunoglobulins and insulin as well as bacterial counts [0.03%]
牛初乳在长达1年的冻藏期内免疫球蛋白、胰岛素浓度及菌落数变化规律的研究
Trent A Westhoff,Sabine Mann
Trent A Westhoff
Freezing colostrum is a common management strategy to ensure availability of high-quality colostrum for each calf. Limited data are available on the effects of freezing colostrum on important colostral components. The objective of this stud...
Carryover effects of 4 daily rumen drenches of maize gluten meal and rumen-protected essential amino acids initiated immediately after calving [0.03%]
产后立即每天4次反刍动物胃投喂玉米醇提取物和保护型必需氨基酸的后续作用
C K Reynolds,L A Crompton,A K Jones et al.
C K Reynolds et al.
The objective was to determine the effects of a daily rumen drench of maize gluten meal, as a source of RUP, and rumen-protected Met, Lys, and His for the first 4 d of lactation on DMI and milk production and composition of dairy cows durin...
Repeated infusion of killed Staphylococcus aureus has increasingly negative effects on milk yield and composition [0.03%]
反复输注灭活的金黄色葡萄球菌对牛奶产量和组成的影响越来越负面
B D Enger,G Hastings,C S Gammariello et al.
B D Enger et al.
Mastitis reduces milk yield of affected mammary glands, but the mechanisms that reduce mammary gland productivity are unclear. We previously aimed to develop a reduced milk yield mastitis model via a single sterile intramammary infusion of ...
Association between the lunar cycle and pregnancy at first artificial insemination of Holstein cows [0.03%]
奶牛第一次人工授精的妊娠率与月相周期之间的关系
P Pinedo,K Keller,M Schatte et al.
P Pinedo et al.
The objective of this observational study was to analyze the association of the lunar cycle with pregnancy at first artificial insemination (P/AI1) of Holstein cows. The study cows were managed under organic certification, which prohibits t...
Evaluation of methane mitigation by organic feed additives in dual-flow continuous culture [0.03%]
有机饲料添加剂缓解双流连续培养体系中甲烷产生的效果评价研究
B A Wenner,G Praisler,K Mitchell et al.
B A Wenner et al.
Sustainability is interwoven with consumer expectations of organic production systems, yet there are few nutritional options for organic dairy systems to approach methane (CH4) mitigation. The objective of the current study was to compare 3...
Jacquelyn P Boerman,Luiz F Brito,Maria E Montes et al.
Jacquelyn P Boerman et al.
Large-scale data generation on dairy cattle farms is expected to continue increasing due to more animals per farm and the adoption of on-farm sensors and technologies that generate additional information on individual animals in greater fre...
Dynamics of the lactose content and other osmotic agents in milk throughout lactation according to the cow's parity [0.03%]
奶牛胎次在整个泌乳期的乳糖含量和其他渗透剂的变化动态
A Hamon,J Guinard-Flament,A Costa et al.
A Hamon et al.
Milk lactose content (LC) is known to vary due to metabolic disorders and udder inflammation. To assess its ability to serve as a marker of these 2 disorders, it is important to first understand its dynamics for healthy cows, particularly i...