数字农科院2.0

Feasibility of Supplying Ruminally Protected Lysine and Methionine to Periparturient Dairy Cows on the Efficiency of Subsequent Lactation

文献类型： 外文期刊

作者： Elsaadawy, Samy A.;Wu, Zhaohai;Bu, Dengpan

作者机构：

关键词： amino acids;peak of milk;metabolizable protein;pregnancy rate;beta-hydroxybutyrate;energy balance;milk production;body condition score

期刊名称： FRONTIERS IN VETERINARY SCIENCE

ISSN：

年卷期： 2022 年 9.0 卷

页码：

摘要： The objective of this study was to evaluate the effects of supplying ruminally protected Lys (RPL) and ruminally protected Met (RPM) to transition cows' diets on the efficiency of subsequent lactation. A total of 120 prepartum Holstein cows were assigned into four treatments blocked by the anticipated calving date, previous lactation milk yield, number of lactations, and body condition score and fed either RPL, RPM, or the combination (RPML) or control diet (CON) throughout the transition period (3 weeks before till 3 weeks after calving). From 22 to 150 days in milk (DIM), all animals (100 cows) were fed a combination of RPM and RPL (0.17% RPM and 0.41% RPL of DM; n = 25 cows/treatment) as follows; CON-RPML, RPM-RPML, RPL-RPML, and RPML-RPML. Milk production and dry matter intake (DMI) were measured daily; milk and blood samples were taken at 21, 30, 60, 90, 120, and 150 DIM. Supplemented amino acids (AA) were mixed with the premix and added to the total mixed ration during the experiment. DMI (p < 0.001) and energy-corrected milk (ECM, p = 0.04) were higher for cows that were fed RPML-RPML than other cows. Compared with CON-RPML, yields of milk total protein, lactose, and nitrogen efficiency were increased (p < 0.01), whereas milk urea nitrogen (MUN; p = 0.002) was decreased for other treatments. However, supplemental AA did not affect milk lactose percentage, fat yield, feed efficiency, or serum total protein concentration (p > 0.10). Transition cows that consumed AA had a greater peak of milk yield (p < 0.01), as well as quickly reached the peak of milk (p < 0.004). There were differences in beta-hydroxybutyrate concentration during the early lactation, with a lower level for AA groups (p < 0.05), and the difference faded with the progression of lactation (p > 0.10). Fertility efficiency as measured by pregnancy rate was improved by supplemental AA during the perinatal period (p < 0.05). In conclusion, transition cows consumed RPM and RPL, increased post-calving DMI, milk production, milk protein yield, nitrogen efficiency, and improved fertility performance.

分类号：

  • 相关文献

[1]Supplementing Ruminally Protected Lysine, Methionine, or Combination Improved Milk Production in Transition Dairy Cows. Elsaadawy S.A.,Wu Z.,Wang H.,Hanigan M.D.,Bu D.. 2022

[2]Responses of energy balance, physiology, and production for transition dairy cows fed with a low-energy prepartum diet during hot season. Su, Huawei,Su, Huawei,Wang, Yachun,Wang, Fuwei,Cao, Zhijun,Rahman, Muhammad Aziz Ur,Cao, Binghai,Li, Shengli,Zhang, Qian.

[3]Genetics, environmental stress, and amino acid supplementation affect lactational performance via mTOR signaling pathway in bovine mammary epithelial cells. Bin Li,Muhammad Zahoor Khan,Ibrar Muhammad Khan,Qudrat Ullah,Zhuo Ma Cisang,Nan Zhang,Dan Wu,Bingjian Huang,Yulin Ma,Adnan Khan,Nan Jiang,Muhammad Zahoor. 2023

[4]Metabolizable protein requirements of Dorper crossbred ram lambs. Deng, K. D.,Ma, T.,Jiang, C. G.,Tu, Y.,Zhang, N. F.,Liu, J.,Zhao, Y. G.,Xu, G. S.,Diao, Q. Y.,Deng, K. D..

[5]Effect of feed intake on metabolizable protein supply in Dorper x thin-tailed Han crossbred lambs. Ma, T.,Tu, Y.,Zhang, N. -F.,Jiang, C. -G.,Liu, J.,Zhao, Y. -G.,Diao, Q. -Y.,Deng, K. -D..

[6]Genetic parameters estimates for locomotion score, body condition score and final type score of Holstein cattle in southern China. Liu, Songbai,Yi, Jianming,Liu, Songbai,Yang, Lu. 2013

[7]Development and implementation of a training dataset to ensure clear boundary value of body condition score classification of dairy cows in automatic system. 陶雅,,李峰,,孙雨坤. 2022

[8]Effect of solid-state NaOH pretreatment on methane production from thermophilic semi-dry anaerobic digestion of rose stalk. Liang, Yue-Gan,Si, You-Bin,Cao, De-Ju,Li, Dao-Lin,Liang, Yue-Gan,Cheng, Beijiu,Chen, Jian-Feng.

[9]Discussion and reassessment of the method used for accepting or rejecting data observed by a Bowen ratio system. Hu, Shunjun,Zhao, Chengyi,Li, Jun,Chen, Yongbao,Wang, Feng.

[10]Deeper insights into the synergy of material transformation, microbial network, and energy balance during pilot thermophilic and mesophilic dry anaerobic digestion systems. Jiadong Yu,Lixin Zhao,Zonglu Yao,Jing Feng,Xufeng Yuan,Hongliang Wang,Yi Liang,Jiankun Chen,Yizhuo Du,Ruixia Shen. 2023

[11]Effects Of Changes In Precipitation O.n Energy And Water B alance In A Eurasian Meadow Steppe. Chen, JY, Shao, CL, Jiang, SC, Qu, LP, Zhao, FY, Dong, G. 2019

[12]Comprehensive analysis of industrial-scale heating plants based on different biomass slow pyrolysis technologies: Product property, energy balance, and ecological impact. Hongbin Cong,Haibo Meng,Ondřej Mašek,Zonglu Yao,Lijie Li,Bingchi Yu,Chao Qin,Lixin Zhao. 2022

[13]The effect of heat pre-treatment on the anaerobic digestion of high-solid pig manure under high organic loading level. Pengfei Li,Jianlin Wang,Hao Peng,Qichen Li,Ming Wang,Wencong Yan,Stopira Yannick Benz Boboua,Wenzhe Li,Yong Sun,Guoxiang Zheng,Hongqiong Zhang. 2022

[14]A review of remote sensing estimation of crop water productivity: definition, methodology, scale, and evaluation. Minghan Cheng,Dameng Yin,Wenbin Wu,Ningbo Cui,Chenwei Nie,Lei Shi,Shuaibing Liu,Xun Yu,Yi Bai,Yadong Liu,Yuqin Zhu,Xiuliang Jin. 2023

[15]Simulation of the nutritional requirements and energy balance of adult cows in a northern temperate grassland. Tianqi Yu,Ruirui Yan,Xiaoping Xin,Xiaoying Zhang,Guomei Yin. 2024

[16]Effect of different data quality control on evapotranspiration of winter wheat with Bowen ratio method. Yingnan Wu,Qiaozhen Li,Xiuli Zhong,Daozhi Gong,Xiaoying Liu. 2025

[17]Milk production and composition responds to dietary neutral detergent fiber and starch ratio in dairy cows. Zhao, Meng,Bu, Dengpan,Wang, Jiaqi,Zhou, Xiaoqiao,Zhu, Dan,Zhang, Ting,Niu, Junli,Ma, Lu,Bu, Dengpan,Bu, Dengpan.

[18]Effect of feeding Bacillus subtilis natto fermentation product on milk production and composition, blood metabolites and rumen fermentation in early lactation dairy cows. Peng, H.,Wang, J. Q.,Kang, H. Y.,Dong, S. H.,Sun, P.,Bu, D. P.,Zhou, L. Y.,Kang, H. Y.,Dong, S. H.. 2012

[19]Effects of Bacillus subtilis natto on milk production, rumen fermentation and ruminal microbiome of dairy cows. Sun, P.,Wang, J. Q.,Deng, L. F.. 2013

[20]Synonymous single nucleotide polymorphisms in the MC4R gene that are significantly associated with milk production traits in water buffaloes. Deng, T. X.,Pang, C. Y.,Liang, X. W.,Liu, M. Q.,Zhang, C.. 2016

作者其他论文 更多>>