Results 121 to 130 of about 423,698 (234)
Is prolonged luteal phase a problem in lactating Holstein cows?
Journal of Dairy Science: In this study, the main objective was to assess if long luteal phases could have causes other than pregnancy loss. We enrolled Holstein dairy cows ≥50 DIM from a commercial herd in Brazil from October 2016 to August 2017. All cows received an estradiol-
J. Denis-Robichaud +8 more
doaj +1 more source
, 2016 An experiment was conducted at Holetta and Debre Zeit Agricultural Research Centers dairy herd in 2011 to evaluate the number of embryos collected per super-ovulated donor cow, estrus rate (ER) and pregnancy rate (PR) of recipient cows/heifers after ...
Tadesse, Million +4 more
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Estrous Synchronization Increases Early Calving Frequency, Which Enhances Steer Progeny Value
, 2010 Calving records collected between 2000 and 2008 at the Gudmundsen Sandhills Laboratory, Whitman, Neb., were used to determine the effect of estrous synchronization on calving distribution and the impact of time of calving on carcass characteristics. More
Larson, Daniel M +2 more
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, 1997 The first experiment evaluated the role of magnitude of change in concentration of progesterone in regulation of LH secretion. Heifers were treated with various doses of progesterone followed by treatment with a large dose of progesterone.
Fike, Karol Elizabeth
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Prostglandins for Estrous Synchronization in Beef Cows
, 1980 Researchers have been attempting to control estrous cycles in animals for the last 50 years. Several progesterone products (Medroxy progesterone acetate and Melengestrol acetate) were approved and marketed for cattle estrous cycle control in the 1960 ...
Miller, H. L.
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Sinkronisasi Estrus dan Inseminasi Buatan pada Rusa Timor
Jurnal Veteriner, 2012 The objective of this experiment was to examine the fertility of timor deer (Rusa timorensis) frozensemen by artificial insemination (AI) with intracervical technique after estrus synchronization withControlled Internal Drug Release, for Goat (CIDR-G ...
Wilmientje Marlene Mesang Nalley +5 more
doaj
, 1996 Three experiments were conducted to evaluate the effects of development of a persistent ovarian follicle and associated elevation in 17$\beta$-estradiol on: (1) fertility at the subsequent estrus if artificial insemination or embryo transfer was ...
Wehrman, Michael Eugene
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Synchronization of estrous in dairy cattle in Rajasthan
VETERINARY SCIENCE RESEARCH JOURNAL, 2017 RABINDRA KUMAR, SUDEEP SOLANKI
openaire +1 more source
, 2008 Summary The objective of this study was to evaluate three methods of estrous synchronization, viz. controlled internal drug releasing device (CIDR), intravaginal sponges impregnated with fluogestone acetate (FGA), and cloprostenol (Estrumate; an analogue
M J Zamiri +7 more
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