Results 31 to 40 of about 12,286,981 (307)

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

Effects of sodium selenite and coated sodium selenite on lactation performance, total tract nutrient digestion and rumen fermentation in Holstein dairy cows.

Animal, 2020
Se can enhance lactation performance by improving nutrient utilization and antioxidant status. However, sodium selenite (SS) can be reduced to non-absorbable elemental Se in the rumen, thereby reducing the intestinal availability of Se.
Z.-D. Zhang, Cong Wang, He Du, Q. Liu, G. Guo, W. Huo, Jun-Zhen Zhang, Y.-L. Zhang, C. Pei, S.-L. Zhang   +9 more
semanticscholar   +1 more source

Effect of Lonicera japonica extract on lactation performance, antioxidant status, and endocrine and immune function in heat-stressed mid-lactation dairy cows.

Journal of Dairy Science, 2020
Here, we examined the effects of Lonicera japonica extract (LJE) on lactation performance, antioxidant status, and endocrine and immune function in heat-stressed mid-lactation dairy cows. Twenty-four healthy Chinese Holstein mid-lactation dairy cows, all
F. Ma, Q. Shan, Y.-H. Jin, D. Gao, H.-Y. Li, M. Chang, P. Sun   +6 more
semanticscholar   +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  

Albumin-to-globulin ratio before dry-off as a possible index of inflammatory status and performance in the subsequent lactation in dairy cows.

Journal of Dairy Science, 2021
The dry-off of dairy cows represents an important phase of the lactation cycle, influencing the outcome of the next lactation. Among the physiological changes, the severity of the inflammatory response can vary after the dry-off, and this response might ...
L. Cattaneo, V. Lopreiato, F. Piccioli-Cappelli, E. Trevisi, A. Minuti   +4 more
semanticscholar   +1 more source

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

Heat stress affects the milk yield, milk composition, serum oxidative status, and metabolites of Holstein cows during mid-lactation

Czech Journal of Animal Science, 2023
Seasonal heat stress and metabolic disorders during mid-lactation are the main factors limiting production in Holstein cows, and several proteins and molecules involved in metabolic pathways are altered in response to stress.
Xue Chen, Yongqiang Li, Jun Xiao, Jianan Dong, Wei Zhao, Zhiyi Han, Liang Xin, Guixin Qin, Tao Wang, Yuguo Zhen, Zhe Sun, Xuefeng Zhang   +11 more
doaj   +1 more source

Effect of preweaning disease on the reproductive performance and first-lactation milk production of heifers in a large dairy herd.

Journal of Dairy Science, 2021
Raising replacement heifers represents a substantial cost in dairy farms, with reproductive efficiency being one of the main factors driving the total rearing cost.
A. Abuelo, F. Cullens, Jill L. Brester
semanticscholar   +1 more source

Effects of preweaning calf daily gain and feed intake on first-lactation performance: A metaanalysis.

Journal of Dairy Science
This study aimed to investigate the effects of daily weight gain and feed intake of calves on first-lactation milk yield and composition using a metaanalysis. A total of 57 treatments from 18 studies were included in the study.
Wen Jiang, Jing-Jun Wang, Shang-Ru Li, Shuai Liu, Yi-Min Zhuang, Sheng-Li Li, Wei Wang, Yajing Wang, Hong-Jian Yang, Wei Shao, Zhi-Jun Cao   +10 more
semanticscholar   +1 more source