农学 >>> 农学总论 作物学 园艺学 土壤学 植物保护学 农药学 林学 畜牧学 兽医学 水产学
搜索结果: 76-90 共查到农学 cows相关记录256条 . 查询时间(0.032 秒)
Secretion of adequate levels of progesterone from a proper corpus luteum (CL), which develops out of the cells of a healthy preovulatory follicle, is a key-factor for establishment of a pregnancy. The...
A total of 669 individual cow milk samples originating from asymptomatic cows from 16 dairy farms were examined for the presence of microorganisms with the potential to cause mastitis. Coagulase-negat...
One of the main drawbacks of using endometrial cytology in cows is the time required for sample collection and interpretation. It is recommended to count a large number of polymorphonuclear neutrophil...
Claw horn disorders, infectious diseases of hooves and leg injuries cause lameness in dairy cows. However, such diseases as sole haemorrhages, sole ulcers or white line diseases, cause clinical lamene...
The aim of this study was to evaluate the effect of raising the rear end when replacing the prolapsed uterus in cows on the outcome and reproductive performance. A total of 76 cows with uterine prolap...
The relationship of various clinical forms of uterine inflammation to bacterial contamination and the applicability of hydrogen peroxide for intrauterine treatment of clinical endometritis was the sub...
The objective of this field trial was to evaluate the body temperature within the interval of 10 days post partum in cows with puerperal metritis, as confirmed by a clinical examination, in comparison...
The aim of this experiment was to investigate the effects of partial replacement of corn silage with long alfalfa hay and/or coarse chopped wheat straw on biochemical parameters in late lactating Hols...
The objective of this field trial was to evaluate the impact of a control program based on systematic clinical examination on Day 10 ± 3 post partum (pp) and treatment in the case of puerperal metri...
d-alanine (DAL) has been successfully used as a marker of bacterial nitrogen (N) in the small intestine of cows. This study compares DAL contents of intestinal bacteria in digesta of cows and pigs w...
: The purpose of this study was to assess the diagnostic value of fibrinogen, haptoglobin, and serum amyloid A determination in the monitoring of the treatment of limb diseases in dairy cows. Fourte...
The goal of this study was to evaluate the dose dependent changes in common milk and blood parameters for udder health after an intramammary (IM) infusion of five different doses of lipopolysaccharide...
The immune response in milk cells and the status of mammary tight junctions (TJ) in response to intramammary (IM) infusion of different doses of Escherichia coli lipopolysaccharide (LPS) was investiga...
Epidemiological studies comparing risk factors for subclinical mastitis (SM) in organic (OP) and conventional dairy production systems (CP) are lacking. In 60 OP and 60 CP farms, 970 cows were used to...
The aim of this study was to test whether a more pronounced oxytocin release induced by naloxone during milking causes higher efficiency of milk removal. Eight pregnant multiparousHolsteincows from se...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...