Association between postpartum systemic inflammation and serum calcium in healthy multiparous dairy cows: An exploratory observational analysis [0.03%]
健康多产乳牛产后全身炎症与血清钙的相关性：一项探索性观察分析
R Couto Serrenho,R C Neves,S J LeBlanc
R Couto Serrenho
Our objective was to investigate the association between serum total Ca concentration (tCa) and indicators of systemic inflammation (SI) in postpartum dairy cows. We hypothesized that the tCa-SI association varies in the first 8 d of lactat...
Evaluating bacterial growth in raw, frozen, and heat-treated colostrum inoculated with fecal Escherichia coli [0.03%]
牛初乳、冰冻初乳和加热初乳中大肠杆菌的生长评估
A M McKane,T A Westhoff,S Klaessig et al.
A M McKane et al.
Providing newborn calves with sufficient high-quality colostrum is a critical calf-management strategy to support health, survival, and future productivity. Unfortunately, colostrum may also serve as a fomite for disease when contaminated w...
Salivary and blood plasma oxytocin after oxytocin injection and during machine milking in dairy cows [0.03%]
牛产后催产素注射及机械挤奶时血液和唾液中催产素的含量
Olga Wellnitz,Benjamin Jenni,Natascha Stoffel et al.
Olga Wellnitz et al.
Oxytocin (OT), the peptide hormone whose release from the pituitary is essential to induce milk ejection, has been measured in blood plasma of dairy cows for decades. In the present study we tested the possible use of saliva instead of bloo...
Validation of a rapid on-farm culture system for group classification of clinical mastitis-causing pathogens [0.03%]
一种快速现场培养系统鉴别引起临床乳腺炎病原菌的验证试验
Fernando J Guardado Servellon,David L Renaud,Bruno Joaquin Paredes Osorio et al.
Fernando J Guardado Servellon et al.
The objective of this diagnostic accuracy study was to compare the use of a rapid tube test system (MastDecide [MD]; Quidee GmbH, Homberg, Germany) to aerobic milk culture for group classification of mastitis pathogens in dairy cattle. A to...
Optimized protocol to preserve RNA integrity for laser capture microdissection of bovine mammary epithelial cells [0.03%]
一种优化的激光捕获显微切割保存奶牛乳腺上皮细胞RNA完整性的方法
Ratan Kumar Choudhary,Thomas B McFadden,Erin M Shangraw et al.
Ratan Kumar Choudhary et al.
Laser capture microdissection (LCM) is a popular technique for isolating specific cell types from tissues for medical research. However, the LCM procedure for isolating bovine mammary epithelial cells (MEC) for high-throughput transcriptome...
Consistency assessment of milk fat and protein percentages across 3 daily milkings in Holstein and Jersey dairy herds [0.03%]
荷斯坦和 jersey 奶牛群每天三次挤奶的乳脂率和乳蛋白率的一致性评估
Xiao-Lin Wu,Malia J Caputo,Asha M Miles et al.
Xiao-Lin Wu et al.
Dairy cattle milking test plans in the United States and globally have evolved substantially since the 1960s toward cost-effective sampling methods. Test-day recording frequencies vary, adapting to the specific management needs of different...
Lena Skånberg,Sigrid Agenäs,Rupert Bruckmaier et al.
Lena Skånberg et al.
Mechanical brushes are a common feature in loose housing systems for dairy cows and are suggested to be linked to positive welfare, yet the physiological effects of brush use remain unexplored. This study examined the influence of cows' mec...
Assessing the use of urinary creatinine excretion rate to estimate urine output in lactating cows [0.03%]
评估泌乳奶牛尿量估计中使用尿液肌酐排泄率的情况
K Park,J Kim,H Hu et al.
K Park et al.
Creatinine concentration in urine is often used to estimate urine output in cows. Studies have commonly used a fixed coefficient for the creatinine excretion rate, although this coefficient varies among studies. However, 29 mg/kg BW·d-1 is...
The intersection of biology and advanced technologies defines the future of dairy reproductive management [0.03%]
生物技术在未来的奶牛繁殖管理中发挥关键作用
M C Lucy
M C Lucy
Advances in reproductive management in dairy cattle have typically been made through the application of new technology. The past 25 yr have been a period of rapid improvement in dairy reproduction through the implementation of new technolog...
Making future udders: Mammary development and perinatal programming of dairy cattle [0.03%]
奶牛乳腺发育和围产期编程的影响因素及其作用机制研究进展
Jimena Laporta,Maverick C Guenther
Jimena Laporta
The perinatal period, described herein as the time spanning the final 2 mo of gestation through 2 mo postnatal, is a critical window of developmental plasticity for many organs in placental mammals, including the mammary gland (MG). In dair...