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Effects of selenium-rich yeast supplementation on the plasma progesterone levels of postpartum dairy cows
Cow Postpartum Progesterone Reproduction Selenium
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2017/3/9
The effects of the pre- and postpartum supplementation of cows with Se on their plasma P4 concentrations after calving were investigated.
H-Nuclear Magnetic Resonance-Based Plasma Metabolic Profiling of Dairy Cows with Fatty Liver
Dairy Cow Fatty Liver H-Nuclear Magnetic Resonance Metabolomics Plasma
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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
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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...
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
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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 ...
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
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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...
Improving Productive and Reproductive Performance of Holstein Dairy Cows through Dry Period Management
Reproductive Performance, Holstein Dairy Cows
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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...
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
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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...
Changes in Plasma Estrogen Concentrations during the First Trimester of Gestation in Dairy Cows:Comparison with the Origin of Embryos and Fetal Number
estradiol-17β estrone estrone sulfate in vitro fertilization multiple pregnancies
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2009/9/10
The objectives of this study were to determine the profiles of plasma estrogen concentrations during the first trimester of gestation and to correlate them with the origin of the embryos and fetal num...
Effect of Improved Cooling System on Reproduction and Lactation in Dairy Cows under Tropical Conditions
Evaporative Cooling Energy Balance Milk Production Ovarian Activity Tropical Condition Dairy Cows
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2016/4/27
The effects of utilizing evaporative cooling system equipped with tunnel ventilation on postpartum ovarian activities, energy balance and milk production of early lactating dairy cows under hot and hu...
The Effect of Prepartum Diet on Nitrogen and Major Mineral Balance of Dairy Cows during Parturition in Summer
Balance Trial Dairy Cow Nitrogen Mineral Heat Stress Parturition
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2016/4/22
Proper nutritional management during the dry period is required to prevent metabolic disorders during the time of parturition and for potential increase milk yield during early lactation, especially u...
Monitoring the Reproductive Status of Dairy Cows by Urinary Pregnanediol Glucuronide
Dairy Cow Progesterone Pregnanediol Glucuronide Urine
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2016/4/15
This study was undertaken with the aim to establish a reliable radioimmunoassay (RIA) system for urinary pregnanediol glucuronide (PdG) and to employ it for monitoring the reproductive status of dairy...
Evaluation of Ascorbic Acid Treatment in Clinical and Subclinical Mastitis of Indian Dairy Cows
Ascorbic Acid Clinical Mastitis Dairy Cows Subclinical Mastitis Treatment
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2016/4/11
A study was carried out to assess the therapeutic effect of ascorbic acid in mastitis of dairy cows. The herd with a population of 250-275 lactating cows was screened for clinical and subclinical mast...
Effects of Rumen Undegradable Protein and Minerals Proteinate on Early Lactation Performance and Ovarian Functions of Dairy Cows in the Tropics
Rumen Undegradable Protein Minerals Proteinate Early Lactation Ovarian Functions Tropics
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2016/4/11
A 90 d study was designed to investigate the effects of rumen undegradable protein (RUP) and a mixture of Cu, Zn and Mn proteinate (CZMP) on milk yield and composition and ovarian functions during rai...