Cookies on Animal Science Database

Like most websites we use cookies. This is to ensure that we give you the best experience possible.

 

Continuing to use www.cabi.org  means you agree to our use of cookies. If you would like to, you can learn more about the cookies we use.

Animal Science Database

Supporting your research in animal production, welfare and health

 Sign up to receive our Veterinary & Animal Sciences eNewsletter, book alerts and offers direct to your inbox.

Results per page:

Search results

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

The aim of this study was to compare estradiol benzoate (EB) and GnRH for the induction of ovulation in a TAI protocol in buffalo during the nonbreeding season. In experiment 1, 141 buffaloes (56 cows and 85 heifers) received an intravaginal P4 device (1.0 g) plus EB (2.0-mg, intramuscular [im]) at ...

Author(s)
Carvalho, N. A. T.; Soares, J. G.; Souza, D. C.; Maio, J. R. G.; Sales, J. N. S.; Martins Júnior, B.; Macari, R. C.; D'Occhio, M. J.; Baruselli, P. S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 87, pp 333-338
Abstract

The study of reproductive physiology in domestic ruminants has progressed from the whole animal to the molecular level in an amazingly short period of time. The volume of information on this subject is enormous; therefore, we have focused on domestic ruminants, with an emphasis on cattle. To date, ...

Author(s)
Smith, M. F.; Geisert, R. D.; Parrish, J. J.
Publisher
Oxford University Press, Cary, USA
Citation
Journal of Animal Science, 2018, 96, 7, pp 2952-2970
Abstract

The aim of this study was to evaluate the performance of heifers from the Pantaneira breed in FTAI programs and characterize follicular dynamics after induced estrus synchronization programs. The pregnancy rate observed in an FTAI program (36,4%) followed by the AI of estrus return was 45.5%. The...

Author(s)
Ferreira, M. G. C. R.; Souza-Cáceres, M. B.; Oliveira-Brochado, N. C. de; Oliveira Júnior, J. S.; Oliveira, M. V. M. de; Melo-Sterza, F. de A.
Publisher
Universidade Federal Rural do Semi-Árido (UFERSA), Mossoro, Brazil
Citation
Acta Veterinaria Brasilica, 2017, 11, 2, pp 133-136
Abstract

The effects of extended progestin exposure, gonadotropin-releasing hormone (GnRH) versus prostaglandin (PG) F at controlled internal drug-release (CIDR) insertion, and GnRH on d 7 versus 9 of a 14-d CIDR on ovarian response and timed AI (TAI) pregnancy rate were evaluated. In Exp. 1 beef heifers...

Author(s)
French, J. T.; Ahola, J. K.; Whittier, J. C.; Giles, R. L.; Repenning, P. E.; Seidel, G. E., Jr.; Peel, R. K.
Publisher
American Registry of Professional Animal Scientists (ARPAS), Champaign, USA
Citation
Professional Animal Scientist, 2013, 29, 1, pp 64-74
Abstract

Recent estrous synchronization research has aimed to develop reliable protocols that: (1) rely solely on fixed-timed artificial insemination (TAI); (2) require a maximum of three animal handlings; and (3) are successful in estrous-cycling and non-cycling females. In cows, insertion of an...

Author(s)
Lamb, G. C.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Bovine Practitioner, 2010, 44, 1, pp 28-35
Abstract

Results of clinical experiments show that it is possible to unify intervals from a PGF application to LH peak then to ovulation. In a field experiment, fixed time insemination was tested on the basis of data from clinical experiments. Synchronized heifers and high yielding cows received GnRH 65...

Author(s)
Becker, F.; Göllnitz, K.; Alm, H.; Schneider, F.; Nehring, H.; Kanitz, W.
Publisher
Institute for Animal Husbandry, Belgrade, Yugoslavia
Citation
Biotechnology in Animal Husbandry, 2003, 19, 5/6, pp 41-47
AbstractFull Text

This study was conducted to investigate the effectiveness of fixed-time artificial insemination (TAI) in dairy heifers treated with progesterone-based protocol. The study was performed at the university farm located in southwestern Brazil in May 2009. A total of 39 cycling crossbred dairy heifers...

Author(s)
Oliveira, L. Z.; Lima, V. F. M. H. de; Oliveira, C. S.; Alves, B. G.; Graff, H. B.; Santos, R. M. dos
Publisher
Universidade Federal do Rio Grande do Sul, Faculdade de Veterinária, Porto Alegre, Brazil
Citation
Acta Scientiae Veterinariae, 2011, 39, 2, pp 964
Abstract

Our objectives were to identify stages of the oestrous cycle at which initiation of a timed artificial insemination (Ovsynch/TAI) protocol may reduce pregnancy rates and to monitor ovarian follicle dynamics and corpus luteum (CL) development after initiation of the Ovsynch/TAI protocol at different ...

Author(s)
Moreira, F.; Sota, R. L. de la; Diaz, T.; Thatcher, W. W.
Citation
Journal of Animal Science, 2000, 78, 6, pp 1568-1576
Abstract

Two experiments evaluated long-term controlled internal drug release (CIDR) insert-based protocols to synchronize estrus and compare differences in their potential ability to facilitate fixed-time artificial insemination (FTAI) in beef heifers. In Experiment 1 estrous cycling heifers (n=85) were...

Author(s)
Leitman, N. R.; Busch, D. C.; Mallory, D. A.; Wilson, D. J.; Ellersieck, M. R.; Smith, M. F.; Patterson, D. J.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2009, 114, 4, pp 345-355

Refine Results

Sort Order
Author
Geographical Location
Item Type
Organisms
Subject Topics