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Effects of selenium-rich yeast supplementation on the plasma progesterone levels of postpartum dairy cows
Cow Postpartum Progesterone Reproduction Selenium
2017/3/9
The effects of the pre- and postpartum supplementation of cows with Se on their plasma P4 concentrations after calving were investigated.
Reproductive efficiency of Pelibuey and Romanov × Pelibuey ewes synchronized with synthetic progesterone and low doses of PMSG under a hot environment
hair-breed sheep estrus synchronization fertility eCG heat stress
2015/6/24
Thirty-nine multiparous ewes (19 Pelibuey and 20 Romanov × Pelibuey) treated with fluorogestone acetate impregnated intravaginal sponges were used to evaluate the effects of low pregnant mare serum go...
Effects of season on plasma progesterone profiles in repeat breeding cows
embryonic death luteal function season cows
2015/5/25
Twenty eight (60.9%) and 18 (39.1%) cows were followed in summer (June–August)
and winter (December–February), respectively. In the summer season, the total progesterone concentrations were
higher...
Milk progesterone profiles, blood metabolites, metabolic hormones and pregnancy rates in Awassi ewes treated by gestagen + eCG at the early breeding season
dairy ewe cycle-induction/synchronization ovary
2015/4/1
The ovarian response to a standard chronogest + eCG treatment with plasma levels of insulin, insulin-like growth factor-I (IGF-I), thyroids, non-esterified fatty acids (NEFA), OH-butyrate (BHB...
Metabolic level recognition of progesterone in dairy Holstein cows using probabilistic models
progesterone pharmacokinetic Hill equation metabolism milk yield Bayesian modeling
2014/10/24
Administration of exogenous progesterone is widely used in hormonal protocols for estrous (re)synchronization of dairy cattle without regarding pharmacological issues for dose calculation. This happen...
Concentrations of Progesterone and Estradiol in Peripheral Plasma during the Estrous Cycle and after Ovariectomy in Huanghuai Goats of High or Poor Prolificacy
Huanghuai Goat Prolificacy Progesterone Estradiol Estrous Cycle
2016/5/4
The objective of this study was to characterize the litter sizes in Huanghuai goats with high prolificacy (HP, five or more kids born per litter on at least one occasion), and to compare their periphe...
Effect of Post Insemination Progesterone Supplement on Pregnancy Rates of Repeat Breeder Friesian Cows
Repeat Breeder Cow Progesterone Supplement PRID Pregnancy
2016/4/26
Fifty repeat breeder (RB) Friesian cows were allocated to five groups of 10 cows each, to determine the effect of progesterone (P4) supplement on P4 concentrations and pregnancy rates during the perio...
Effect of Follicular Fluid Proteins and Gonadotropins on Progesterone Secretion by Buffalo Granulosa Cells In vitro
Buffalo Ovary Follicular Fluid Proteins Granulosa Cells Progesterone Secretion
2016/4/18
In the mammalian ovary the follicular fluid contains proteins and peptides which play an important role in growth, development and maturation of oocytes. The gonadotropins and some other factors work ...
Effect of Using Progesterone Releasing Intravaginal Device with Ovsynch Program on Reproduction in Dairy Cattle during Summer Season
Dairy Cows Estrus-synchronization TAI Progesterone Fertility Summer
2016/4/14
Sixty postpartum lactating Friesian cows in 3 treatments at a commercial dairy farm were used to study the effect of using progesterone supplementation with GnRH and PGF2a synchronization with and wit...
Reproductive Responses of Awassi Ewes Treated with either Naturally Occurring Progesterone or Synthetic Progestagen
Estrus Synchronization Progesterone MAP FGA Awassi Ewes
2016/4/11
The objective was to identify the appropriate form of progesterone, which exhibits compact reproductive responses in Awassi ewes during mid to late seasonal anestrous period. Forty-eight Awassi ewes w...
Role of Diacyl Glycerol (DAG) in Caprine Sperm Acrosomal Exocytosis Induced by Progesterone
Goat Spermatozoa Acrosome Reaction Diacyl Glycerol Phospholipase C
2016/4/11
Capacitated goat spermatozoa generated diacyl glycerol (DAG) when suspended in Krebs Ringer bicarbonate medium and induced by progesterone or Ca2+ ionophore A23187. We have added Sn-1-oleoyl-2-acetyl ...
Role of Calcium and Calcium Channels in Progesterone Induced Acrosome Reaction in Caprine Spermatozoa
Goat Sperm Nifedipine Monensin Nigericin Ca2+ Channels Fura 2
2016/4/11
There are several physiological and pharmacological evidences indicating that opening of voltage dependent Ca2+ channels play a critical role in induction of acrosome reaction in mammalian sperm. We d...