搜索结果: 1-15 共查到“家畜繁殖学 Cows”相关记录28条 . 查询时间(0.087 秒)
Effects of selenium-rich yeast supplementation on the plasma progesterone levels of postpartum dairy cows
Cow Postpartum Progesterone Reproduction Selenium
font style='font-size:12px;'>
2017/3/9
The effects of the pre- and postpartum supplementation of cows with Se on their plasma P4 concentrations after calving were investigated.
Black gram (Vigna Mungo L.) foliage supplementation to crossbred cows: effects on feed intake, nutrient digestibility and milk production
Black Gram Foliage Intake Nutrient Digestibility Milk Yield Cows
font style='font-size:12px;'>
2017/3/8
An experiment was conducted to examine the effect of dietary supplementation of dried and ground foliage of black gram (Vigna mungo L.) on feed intake and utilization, and production performance of cr...
H-Nuclear Magnetic Resonance-Based Plasma Metabolic Profiling of Dairy Cows with Fatty Liver
Dairy Cow Fatty Liver H-Nuclear Magnetic Resonance Metabolomics Plasma
font style='font-size:12px;'>
2016/5/19
Fatty liver is a common metabolic disorder of dairy cows during the transition period. Historically, the diagnosis of fatty liver has involved liver biopsy, biochemical or histological examination of ...
Post-calving administration of uterine stimulants does not improve reproductive performance in dairy cows
endometritis oxytocin dinoprost ergometrin reproductive parameters
font style='font-size:12px;'>
2015/11/26
The aim of this study was to evaluate the effects of administration of oxytocin, in combination with
dinoprost or ergometrin, after parturition on the occurrence of clinical endometritis and subsequ...
Genetic parameters for female fertility and milk production traits in first-parity Czech Holstein cows
dairy cattle reproduction production
font style='font-size:12px;'>
2015/6/23
The aim of this study was to estimate genetic parameters for female fertility and production
traits in first-parity Czech Holstein cows and to quantify the effect of using this information on the ac...
Effects of GnRH, PGF2α and oxytocin treatments on conception rate at the time of artificial insemination in lactating dairy cows
cow spontaneous oestrus GnRH PGF2伪 oxytocin pregnancy
font style='font-size:12px;'>
2015/6/9
In several studies, hormones such as gonadotropin-releasing hormone (GnRH), prostaglandins and oxytocin were used to increase pregnancy rate by inducing ovulation and improving the sperm transport in ...
Calving difficulty as related to body weights and measurements of cows and calves in a herd of Gascon breed
beef cattle course of parturition pelvic measurements calving difficulty
font style='font-size:12px;'>
2015/6/5
This study was conducted to evaluate the body weights and measurements of 86 Gascon calves and their dams. The effects of the course of parturition, parity of the dams, sex of the calves, and live- or...
Relationships between the incidence of health disorders and the reproduction traits of Holstein cows in the Czech Republic
health fertility parameters dairy cows
font style='font-size:12px;'>
2015/6/4
The objective of this study was to evaluate the relationships between several health disorders: milk fever (MF; hypocalcaemia and parturient paresis), retained placenta (RP; retained foetal membranes)...
Reproductive Performance of Holstein Dairy Cows Grazing in Dry-summer Subtropical Climatic Conditions: Effect of Heat Stress and Heat Shock on Meiotic Competence and In vitro Fertilization
Artificial Insemination Heat Shock Oocyte Meiotic Maturation Maternal Heat Stress
font style='font-size:12px;'>
2016/5/18
The present study was designed to evaluate how environmental factors in a dry-summer subtropical climate in Terceira-Azores (situated in the North Atlantic Ocean: 38° 43′ N 27° 12′ W) can affect dairy...
Use of endometrial cytology and metabolic profiles for selection of embryo donor cows
serum chemistry parameters endometritis neutrophils
font style='font-size:12px;'>
2014/10/28
The aim of this study was to evaluate the use of endometrial cytology and metabolic profiles for selection of donor cows in embryo transfer programmes. For this purpose, 69 clinically healthy Holstein...
Improving Productive and Reproductive Performance of Holstein Dairy Cows through Dry Period Management
Reproductive Performance, Holstein Dairy Cows
font style='font-size:12px;'>
2016/5/11
To determine the effects of dry period (DP) length on milk yield, milk composition, some blood metabolites, complete blood count (CBC), body weight and score and follicular status, twenty five primipa...
Protein Profile in Corpus Luteum during Pregnancy in Korean Native Cows
Corpus Luteum Korean Native Cows Pregnancy Progesterone Proteome Analysis
font style='font-size:12px;'>
2016/5/10
Steroidogenesis requires coordination of the anabolic and catabolic pathways of lipid metabolism, but the profile of proteins associated with progesterone synthesis in cyclic and pregnant corpus luteu...
Phenotypic Relationship between Lactation Persistency and Change in Body Condition Score in First-lactation Holstein Cows
Body Condition Score Cow Lactation Persistency
font style='font-size:12px;'>
2016/5/6
We examined the correlations between lactation curve shape, including persistency and changes in body condition score (BCS) during early-stage (0 to 30 days in milk (DIM)), nadir-stage (31 to 90 DIM),...
Microbial Flora of Normal and Abnormal Cervical Mucous Discharge Associated with Reproductive Performance of Cows and Heifers in Estrus
Discharge Cow Heifer Fertility Bacteria
font style='font-size:12px;'>
2016/5/5
The aim of the present study was to describe whether abnormal cervical mucus discharge (A-CMD) or pathogens in cervical mucus discharge (CMD) have effects on reproductive performance of cows and heife...
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
font style='font-size:12px;'>
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...