搜索结果: 1-7 共查到“知识库 兽医学 milk yield”相关记录7条 . 查询时间(0.125 秒)
Effects of erythromycin on milk yield, rumen contraction rate and blood beta-hydroxybutyrate concentration in dairy cows after laparoscopic reposition of the left displaced abomasum
cattle dislocatio abomasi endoscopy prokinetic drugs gastrointestinal mobility
2016/9/1
The objective of this study was to evaluate the beneficial effects of erythromycin (Emy), a prokinetic drug active at the level of the abomasum, duodenum and proximal duodenum, in dairy cows undergoin...
Association of insulin-like growth factor I gene polymorphisms (IGF1/TasI and IGF1/SnaBI) with the growth and subsequent milk yield of Polish Holstein-Friesian heifers
cattle body weight insulin-like growth factors milk performance
2015/6/24
The aim of this study was to estimate potential relationships between insulin-like growth factor I gene polymorphisms (IGF1/TasI and IGF1/SnaBI) and the growth parameters of calves as well as their su...
Lactation curves for milk yield, fat, and protein content in Slovenian dairy sheep
dairy sheep milk traits test-day records
2015/6/23
Lactation curves for daily milk yield, fat, and protein content in three dairy sheep breeds were
estimated by the repeatability animal model using test-day records. A total of 38 983 records from 30...
Relationship between milk yield, stage of lactation, and some blood serum metabolic parameters of dairy cows
cow milk aminotransferase cholesterol
2015/6/23
The aim of the study was to evaluate the effect of milk yield and stage of lactation on the
activity of liver enzymes, cholesterol, and vitamin C concentration in blood of milking cows.
Relationships among milk yield, body weight, and reproduction in Holstein and Czech Fleckvieh cows
dairy cow negative energy balance
2015/6/23
A retrospective, observational study comprised analyses of individual cow records from
a computerised herd management system. Production, body weight, and reproduction data were collected
between ...
Factors affecting milk yield and ewe’s lactation curves estimated with test-day models
Tsigai Improved Valachian Lacaune milk yield environmental effects lactation curve
2015/6/2
Test-day records of purebred Tsigai, Improved Valachian and Lacaune ewes were analysed with a general linear model in order to investigate the effects of flock-test day, lactation number, days in milk...
Influence of increased lipid content in diet in the form of treated rapeseed meal on the metabolism and milk yield of dairy cows in the first third of lactation
TAS cholesterol vitamin E SOD T3 T4 reproduction blood
2015/3/5
The purpose of this study was to evaluate the influence of high lipid concentration in the diet, served as calcium salts of fatty acids from rape, on metabolism and the milk yield of dairy cows during...