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Abstract

Objective: The aim of this study was to monitor the ovarian response and conception rate following estrous synchronization using CIDR, Ovsynch and double prostaglandin F protocols in Egyptian buffalo heifers. Material and methods: A total of 80 cyclic buffalo heifers were divided into four equal...

Author(s)
Hussein, H. A.; Mohamed, R. H.; Hossam, M.; Wehrend, A.
Publisher
Schattauer GmbH, Stuttgart, Germany
Citation
Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere, 2016, 44, 5, pp 287-294
Abstract

Progesterone-containing devices can be inserted intravaginally for 14 d to presynchronize the estrous cycle for timed artificial insemination (TAI) in beef heifers ("14-day CIDR-PG" or "Show-Me-Synch" program). The progesterone treatment is effective for presynchronization because cattle develop a...

Author(s)
Escalante, R. C.; Poock, S. E.; Mathew, D. J.; Martin, W. R.; Newsom, E. M.; Hamilton, S. A.; Pohler, K. G.; Lucy, M. C.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2012, 95, 9, pp 5102-5108
Abstract

Postpartum anoestrus Sahiwal cows (n=10), which had not shown any signs of oestrus even after four months of calving, pubertal anoestrus Sahiwal heifers (n=10) at the age of >3 years (3-3.5 years) and weighing 250-350 kg, and anoestrus Sahiwal cattle (n=10, as control). Ov-synch protocol...

Author(s)
Krishna Mohan; Mishra, U. K.; Mishra, O. P.; Khan, J. R.; Prakash, B. S.
Publisher
Indian Veterinary Association, Chennai, India
Citation
Indian Veterinary Journal, 2010, 87, 3, pp 297-298
AbstractFull Text

Author(s)
Gatien, J.; Ponsart, C.; Humblot, P.
Publisher
Société Française de Buiatrie, Labastide St Pierre, France
Citation
European Buiatrics Forum, Palais du Pharo, Marseille, 1-3 December 2009, 2009, pp 164
Abstract

The aim of using Ovsynch protocol in true anestrus buffalo heifers (n=11) was to induce synchronized ovulatory estrus and thereafter, to assess the first service conception rate. 'Ovsynch' involved administration of a GnRH-analogue at days 0 and 9, and a PGF analogue on day 7. Transrectal ovarian ...

Author(s)
Ghuman, S. P. S.; Jagir Singh; Honparkhe, M.; Dadarwal, D.
Publisher
Indian Society for Study of Animal Reproduction (ISSAR), Chennai, India
Citation
Indian Journal of Animal Reproduction, 2009, 30, 2, pp 1-5
Abstract

The association between conception rate at first service and numbers of follicles developed during a follicular wave was examined in 102 suckled beef cows and 14 heifers. Follicular development was monitored using ultrasonography for either two (trial 1) or three (trial 2) consecutive oestrous...

Author(s)
Starbuck-Clemmer, M. J.; Hernandez-Fonseca, H.; Ahmad, N.; Seidel, G.; Inskeep, E. K.
Publisher
Blackwell Publishing, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2007, 42, 4, pp 337-342
Abstract

293 Anatolian cows housed in small barns were examined for infertility problems. The total incidence of reproductive problems in small barns was 44.70%. The conception rates were 68.5 and 51.2% for cows and heifers at first service, respectively. The incidence of delayed ovulation, cystic ovarian...

Author(s)
Kaya, M.; Gulyuz, F.; Tasal, I.; Uslu, B. A.
Publisher
Indian Veterinary Association, Chennai, India
Citation
Indian Veterinary Journal, 2005, 82, 9, pp 957-958
Abstract

In an experiment involving 277 cycling females , the females were injected with 5 mg Alfaprostol (a PGF2 alpha analogue) during spring 1979 or with 1.5 mg Alfaprostol/kg body weight during winter 1979/80. In both seasons, the females were treated according to 1 of 3 regimes: (1) 2 injections with...

Author(s)
Jochle, W.; Kuzmanov, D.; Vujosevic, J.
Citation
Theriogenology, 1982, 18, 2, pp 215-225
Abstract

This study was designed to evaluate the effect on fertility of 0.4 mg. per 1b. body weight per day of MAP when given under controlled conditions to 15- to 18-mth-old Holstein heifers weighing 630-825 1b. ; the animals were concurrently under trial in a nutritional experiment (2 types of hay). MAP...

Author(s)
FAHNING, M. L.; SCHULTZ, R. H.; GRAHAM, E. F.; DONKER, J. D.; MOHRENWEISER, H. W.
Citation
Journal of Reproduction and Fertility, 1966, 12, pp 569-571
Abstract

Three methods of regulating the oestrous cycle in Hereford cattle were studied in 3 separate trials. In Trial I an attempt was made to bring 27 Hereford heifers into oestrus during a target period of 3 days by altering the naturally occurring cycles, where necessary, by recycling by means of...

Author(s)
HANSEL, W.; MALVEN, P. V.; BLACK, D. L.
Citation
Journal of Animal Science, 1961, 20, pp 621-625

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