搜索结果: 1-6 共查到“农学 transition period”相关记录6条 . 查询时间(0.14 秒)
Comparative proteomics analysis of plasma proteins during the transition period in dairy cows with or without subclinical mastitis after calving
dairy cow plasma proteome periparturient
2015/6/23
The transition period is the most critical time of the cow’s lactation cycle that is associated with
the onset of mastitis. In this study, changes of plasma proteins in cows (n = 12) with or without...
Non-structural carbohydrates in the nutrition of high-yielding dairy cows during a transition period
dairy cows NFC dry matter intake milk performance transition period
2015/6/8
The main aim of this study was to investigate experimentally the effect of different composition of non-structural carbohydrates (NFC) in prepartum feed rations administered to high-yielding dairy cow...
Non-structural carbohydrates in the nutrition of high-yielding dairy cows during a transition period
dairy cows NFC dry matter intake milk performance transition period
2015/6/8
The main aim of this study was to investigate experimentally the effect of different composition of non-structural carbohydrates (NFC) in prepartum feed rations administered to high-yielding dairy cow...
Oxidative Stress and Antioxidant Status during Transition Period in Dairy Cows
Antioxidative Enzymes Oxidative Stress Production Diseases Transition Period Dairy Cow
2016/5/6
The study was conducted on 20 Holstein X Sahiwal cross bred dairy cows, with an average milk production of 2,752113.79 liters in 2845.75 days during a single lactation, that were divid...
Effects of Propylene Glycol on Milk Production, Serum Metabolites and Reproductive Performance during the Transition Period of Dairy Cows
Dairy Cows Propylene Glycol Milk Production Serum Metabolites
2016/5/4
The objective of this study was to investigate the effects of an oral drench of propylene glycol (PG) on milk production, serum metabolites and reproductive performance during the transition period of...
THE ECONOMICS OF PEANUT PRODUCTION IN BULGARIA DURING THE TRANSITION PERIOD
transition economics peanut production
2010/12/6
We examined peanut production systems and selected factors affecting the development of commercial peanut enterprises in Bulgaria. A survey of 220 individual farms and farm cooperatives engaged in the...