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Abstract

The principle of ovsynch-timed artificial insemination and the methods and reproductive application of estrus synchronization and ovsynch-timed artificial insemination in dairy cattle were summarized. Accurate and timely estrus detection of dairy cattle in their estrus cycle was the foundation for ...

Author(s)
Zhao MingLi; Zhang Shen; Hao HaiSheng; Zhao XueMing; Du WeiHua; Wang Dong; Zhu HuaBin
Publisher
Guoji Shudian (Institute of Scientific and Technological Information of China, China Publications Centre), Beijing, China
Citation
Chinese Journal of Animal Science, 2015, 51, 17, pp 80-86
AbstractFull Text

The objective of the present work was to evaluate the effect of treatment of estrus cycle control (Co-Synch 5 days; J-Synch or Device by 7 days), reproductive status (cyclic or anestrus) and equine chorionic gonadotropin (eCG) on pregnancy rate after fixed time artificial insemination (FTAI). Angus ...

Author(s)
Erbiti, F.; Lissarrague, C.; Cabodevila, J.; Callejas, S. S.
Publisher
Facultad de Ciencias Veterinarias de la Universidad Nacional del Nordeste (UNNE), Corrientes, Argentina
Citation
Revista Veterinaria, 2018, 29, 1, pp 35-39
AbstractFull Text

The present work aimed to describe some important concepts regarding the reproductive physiology of pharmacological control of the estrous cycle, presenting different protocols for IATF. IATF has become one of the leading reproductive biotechnologies of economic importance in cattle production...

Author(s)
Oliveira, R. B. de; Silva Junior, B. A. da; Cavalcanti, T. H. C.
Publisher
Pubvet, Maringá, Brazil
Citation
PUBVET, 2018, 12, 11, pp a210
Abstract

The objective of this study was to evaluate the conception rate of crossbred heifers (n=50) and cows (n=50) inseminated with sexed and conventional semen between 18 and 24 hours after estrous detection. The synchronization protocol of the estrous cycle started on day zero (D0) by inserting the...

Author(s)
Peres, A. R.; Ifran, A. M.; Lima, M. R. de; Rossi, G. F.; Corrêa, R. R.; Garcia, J. M.
Publisher
Faculdade de Veterinaria, Universidade Federal Fluminense, Niterói, Brazil
Citation
Revista Brasileira de Ciência Veterinária, 2016, 23, 3/4, pp 186-190
Abstract

To determine the effects of estrus synchronization (ES) and fixed-time artificial insemination (TAI) on calving distribution in Bos indicus influenced heifers, 751 Bos taurus × Bos indicus beef heifers were enrolled in a completely randomized design at 2 locations from January to May of 2016....

Author(s)
Oosthuizen, N.; Fontes, P. L. P.; Sanford, C. D.; Ciriaco, F. M.; Henry, D. D.; Canal, L. B.; DiLorenzo, N.; Lamb, G. C.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 106, pp 210-213
Abstract

This study investigated bovine conceptus-induced modifications to the endometrial transcriptome related to effects of interferon tau (IFNT), conceptus origin (in vivo vs. in vitro), and conceptus sex. In vitro (IVF) or in vivo (superovulation and artificial insemination, AI) produced blastocysts...

Author(s)
Mathew, D. J.; Sánchez, J. M.; Passaro, C.; Charpigny, G.; Behura, S. K.; Spencer, T. E.; Lonergan, P.
Publisher
Oxford University Press, Cary, USA
Citation
Biology of Reproduction, 2019, 100, 2, pp 365-380
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

This is a review of the physiology and endocrinology of the estrous cycle and how ovarian physiology can be manipulated and controlled for timed artificial insemination (TAI) in beef and dairy cattle. Estrus detection is required for artificial insemination (AI), but it is done poorly in dairy...

Author(s)
Colazo, M. G.; Mapletoft, R. J.
Publisher
Canadian Veterinary Medical Association, Ottawa, Canada
Citation
Canadian Veterinary Journal, 2014, 55, 8, pp 772-780
Abstract

Numerous treatments and protocols have been used to control the reproductive cycle in cattle, with varying effectiveness and many involving the administration of steroid hormones. Steroid hormones, such as estradiol, are perceived as having a negative impact on consumer health. This internationally ...

Author(s)
Yapura, M. J.; Zwiefelhofer, E. M.; Pierson, R. A.; Adams, G. P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 112, pp 18-25

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