Pattern of follicular growth and resumption of ovarian activity in post-partum beef suckler cows
نویسندگان
چکیده
منابع مشابه
Effects of bovine somatotrophin (bST) on ovarian function in post-partum beef cows.
The effects of bovine somatotrophin (bST) on ovarian follicle development and function and associated gonadotrophin profiles during the first nine weeks post partum were investigated in beef cows. Thirty-two cows (Shorthorn x Galloway) in moderately low body condition (BC) at calving were fed to maintain BC thereafter. At Weeks 2, 4, 6 and 8 post partum, animals were injected with 320 mg bovine...
متن کاملEnergy balance, leptin, NEFA and IGF-I plasma concentrations and resumption of post partum ovarian activity in swedish red and white breed cows
In the purpose to provide further information in respect of the relationship between metabolism and post partum (PP) ovarian activity resumption in dairy cows, the aim of the present study was to characterize the energy balance (EB) and leptin, NEFA and IGF-I plasma levels in Swedish Red and White (SRW) cows with and without ovarian activity re-initiation within 7 weeks PP. The study was conduc...
متن کاملIntroduction of bulls at different days postpartum on resumption of ovarian cycling activity in primiparous beef cows.
The objective of this study was to evaluate postpartum resumption of ovulatory cycles among primiparous, suckled beef cows that were exposed continuously to mature bulls beginning at various intervals after calving. We sought to determine whether cumulative distributions of proportions of cows resuming ovarian cycles and interval from the start of bull exposure to resumption of ovarian cycling ...
متن کاملThe effect of undernutrition of beef cows on blood hormone and metabolite concentrations post partum.
Twelve Hereford Friesian cows were allocated to either a high plane (HP) or a low plane of nutrition (LP) post-partum. HP animals received rations supplying sufficient energy and protein for maintenance plus 10 kg/day milk yield. LP cows were offered approximately 70% of their maintenance needs for 63 days post-partum. Thereafter they received the same ration as the HP animals. A mineral vitami...
متن کاملThe Effect of Urea-Treated Barley Straw on the Reproductive Performance and Post-Partum Ovarian Activity of Libyan Barbary Sheep
Forty ewes (3-6 years of age, average weight 41.2 kg)were randomly chosen from the flock of the sheep experiment station of Tripoli University. Ewes were divided into two groups, control group (C) received untreated barley straw and treatment group (T) received barley straw treated with 10% urea solution applied as 40% (V/W). Barley straw was sprayed with molasses when fed to animals. Both grou...
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ژورنال
عنوان ژورنال: Reproduction
سال: 1990
ISSN: 1470-1626,1741-7899
DOI: 10.1530/jrf.0.0900523