Results 21 to 30 of about 36,384 (260)

Comparison of service period and lactation milk yields in dairy cows with single- and twin-calving [PDF]

Veterinarski Glasnik, 2018
Introduction. Twin-calving occurs in 3 to 5 % of Holstein Friesian cattle, and it is mostly followed by reproductive and economic problems. This evaluation will compare the service period and the milk yield in cows with single and twin births at a ...
Dörstelmann Maximiliane H.K., Ari Melinda, Becskei Zsolt, Gulyás László, Gáspárdy András   +4 more
doaj   +1 more source

Effect of adding exogenous energy feed in perinatal diet on lactation performance of dairy cows

Siliao yanjiu, 2022
The experiment studied the effect of adding rumen bypass fat powder, glucose and propylene glycol in perinatal dairy cow's diet on lactation performance of dairy cows.
Li-li CHEN, Na LU, Yi MA
doaj  

Effect of steam-pressed corn and palm fat powder on lactating performance， nitrogen and phosphorus emission of milk buffalo

Siliao yanjiu, 2022
The experiment was conducted to study the effect of steam-pressed corn flakes and palm fat powder on lactation performance, apparent digestibility of nutrients, nitrogen and phosphorus emission of dairy buffalo.
LIU Ping, ZHAO Min-lin, LI Qing, ZHANG Fa-qiang, SHEN Xiao-jing, MEI Guo-dong, ZHAO Jia-hua, MAO Hua-ming   +7 more
doaj  

Combined effects of oleic, linoleic and linolenic acids on lactation performance and the milk fatty acid profile in lactating dairy cows

Animal, 2018
The potential combined effects of oleic, linoleic and linolenic acids supplementation on lactation performance and the milk fatty acid (FA) profile in dairy cows have not been well investigated. Our objective was to examine the effects of supplementation
C. Bai, Q.N. Cao, Khas-Erdene, C.J. Ao, P. Gao, Y. Zhang, F.Y. Mi, T.L. Zhang   +7 more
doaj   +1 more source

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

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

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