Results 41 to 50 of about 12,286,981 (307)

Anti-heat stress lick block supplementation alleviated the detrimental effects of heat stress on dairy cows

Frontiers in Veterinary Science
IntroductionHeat stress poses a significant challenge to the development of dairy industry, affecting cows’ well-being and overall productivity, leading to substantial economic losses.
Hongwei Duan, Hongwei Duan, Jiyou Zhang, Jiyou Zhang, Na Li, Liuping Chen, Danhong Chen, Hang Yang, Qiuxia Dai, Junshi Shen, Junshi Shen, Shengyong Mao, Shengyong Mao   +12 more
doaj   +1 more source

An integrated microbiome- and metabolome-genome-wide association study reveals the role of heritable ruminal microbial carbohydrate metabolism in lactation performance in Holstein dairy cows

Microbiome
Despite the growing number of studies investigating the connection between host genetics and the rumen microbiota, there remains a dearth of systematic research exploring the composition, function, and metabolic traits of highly heritable rumen ...
Chenguang Zhang, Huifeng Liu, Xingwei Jiang, Zhihong Zhang, Xinfeng Hou, Yue Wang, Dang-Dang Wang, Zongjun Li, Yang-Chun Cao, Sheng-Ru Wu, S. Huws, Jun-Hu Yao   +11 more
semanticscholar   +1 more source

Comparison of three mathematical models to estimate lactation performance in dairy cows.

Journal of Dairy Science
Milk yield dynamics and production performance reflect how dairy cows cope with their environment. To optimize farm management, time-series of individual cow milk yield have been studied in the context of precision livestock farming, and many ...
G. Ranzato, B. Aernouts, I. Lora, I. Adriaens, A. Ben Abdelkrim, M. Gote, G. Cozzi   +6 more
semanticscholar   +1 more source

Associations of growth rates during the first 2 months of life with feeding behavior, development, and first-lactation performance in Holstein heifers

Journal of Dairy Science
: Early-life growth and development are crucial for the future performance of replacement heifers. Optimizing growth enhances immediate performance and establishes the foundation for long-term productivity, improving overall efficiency in milk production.
K.J. Hemmert, C.S. Ostendorf, I. Cohrs, C. Koch, H. Sauerwein, M.H. Ghaffari   +5 more
doaj   +1 more source

The Effect of Feeding Different Levels of Mineral Biochar on Performance, Blood Parameters, Production and Milk Composition of Holstein Dairy Cows [PDF]

پژوهشهای علوم دامی ایران
Introduction: Biochar is a solid product obtained from the thermal conversion of biomass under oxygen-free conditions, which can be used as an additive in animal feed in addition to agricultural applications.The purpose of this study was to use a natural
Ali Khatibi Bardsiri, Reza Valizadeh, Seyed Hadi Ebrahimi, Pirouz Shakeri, Abbas Ali Naserian   +4 more
doaj   +1 more source

Dietary fat and carbohydrate-balancing the lactation performance and methane emissions in the dairy cow industry: A meta-analysis

Animal Nutrition
For the agroecosystems of the dairy cow industry, dietary carbohydrate (starch, neutral detergent fiber [NDF]) and fat could directly affect rumen methane emissions and host energy utilization. However, the relationships among diet, lactation performance,
Chenguang Zhang, Xingwei Jiang, Sheng-Ru Wu, Jun Zhang, Yue Wang, Zongjun Li, Jun-Hu Yao   +6 more
semanticscholar   +1 more source

Assessing feed efficiency in early and mid-lactation and its associations with performance and health in Holstein cows.

Journal of Dairy Science, 2021
Objectives were to evaluate the associations between residual dry matter (DM) intake (RFI) and residual N intake (RNI) in early lactation, from 1 to 5 wk postpartum, and in mid-lactation, from 9 to 15 wk postpartum, and assess production performance and ...
M. N. Marinho, R. Zimpel, F. Peñagaricano, J. Santos   +3 more
semanticscholar   +1 more source

Comparative study on apparent digestibility of nutrients， rumen fermentation parameters and milk quality of high-yielding and low-yielding dairy cows in different physiological periods

Siliao yanjiu, 2021
The experiment studied the effect of lactation performance and lactation stages on the apparent digestibility of nutrients, rumen fermentation parameters and milk quality of dairy cows. The experiment adopted a two-factor experimental design.
Shou-qian ZHU, Da-biao LI, Yong-fang XIE, Xiao-yu NIU, Hong-lian HU, Min GAO   +5 more
doaj  

A survey report on the donkey original breeding farms in China: Current aspects and future prospective

Frontiers in Veterinary Science, 2023
IntroductionThe number of the large-scale donkey breeding farms in China has increased dramatically. However, information regarding the situation of a Chinese donkey population under large-scale donkey breeding farms is limited.MethodsThis survey report ...
Zhenwei Zhang, Bingjian Huang, Yonghui Wang, Mingxia Zhu, Guiqin Liu, Changfa Wang   +5 more
doaj   +1 more source

Effects of Adding Fat to the Sow Lactation Diet on Lactation and Rebreeding Performance

Journal of Animal Science, 1986
One-hundred-three multiparous sows were randomly assigned to one of two lactation diets containing either no supplemental animal fat (C) or 10% added fat (F) during two seasons, summer (S) and winter (W), in a 2 X 2 factorial arrangement of treatments.
G C, Shurson, M G, Hogberg, N, DeFever, S V, Radecki, E R, Miller   +4 more
openaire   +3 more sources