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AbstractFull Text

With the current expansion of sheep farming in Brazil and the need for genetic improvement of livestock, the most beneficial alternative available is artificial insemination (AI), and its adoption was facilitated by concomitant use of synchronization of estrus and ovulation in order to time ...

Author(s)
Soriano, G. A. M.; Ruediger, F. R. de; Castilho, C.
Publisher
Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, Brazil
Citation
Veterinária e Zootecnia, 2017, 24, Suppl. 1, pp 189-199
Abstract

Fixed-time artificial insemination (FTAI) is the most effective method to increase the number of females inseminated in a single day, eliminating the necessity of estrus detection. Usually the treatments for FTAI in sheep are based on the use of progesterone-releasing devices and equine chorionic...

Author(s)
Menchaca, A.; Santos Neto, P. C. dos; Cuadro, F.
Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Revista Brasileira de Reprodução Animal, 2017, 41, 1, pp 340-344
Abstract

The objective of this study was to evaluate the oestrus and pregnancy using seven and 14 days synchronization protocol followed by fixed-time artificial insemination (FTAI) in sheep, 50 ewes were selected and divided into two groups: G-14 (n=25) and G-07 (n=25). Were inserted vaginal sponges that...

Author(s)
Sousa, M. S.; Nunes, J. F.; Salgueiro, C. C. M.; Câmara, T. S.; Machado, A. A. C.; Pessoa, R. H. de P.; Negreiros, N. A. B.
Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Revista Brasileira de Reprodução Animal, 2016, 40, 4, pp 452-453
Abstract

This study was designed to investigate effects of natural mating versus artificial insemination in ewes synchronized for estrus/ovulation by single versus double sponge inserts combined with PMSG. A hundred twenty cyclic Herri ewes were utilized in the study. Ten ewes served as control (C), given...

Author(s)
Ali, M.
Publisher
IDOSI Publications, Dubai, United Arab Emirates
Citation
Global Veterinaria, 2014, 13, 2, pp 166-172
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
AbstractFull Text

A total of ∼200 000 sheep are inseminated annually which have either undergone a natural ovulation (70%) or synchronized oestrus (30%). The synchronized females either inseminated with fresh semen and or cryopreserved semen. The use of timing associated with the use of preserved semen for...

Author(s)
Fernández Abella, D.; Irabuena, O.; Sterla, S.
Publisher
Asociación Latinoamericana de Producción Animal, Maracaibo, Venezuela
Citation
Archivos Latinoamericanos de Producción Animal, 2015, 23, 5, pp 152-153
Abstract

Although essential for artificial insemination (AI) and MOET (multiple ovulation and embryo transfer), oestrus synchronisation and superovulation are associated with increased female reproductive tract mucus production and altered sperm transport. The effects of such breeding practices on the ovine ...

Author(s)
Maddison, J. W.; Rickard, J. P.; Bernecic, N. C.; Tsikis, G.; Soleilhavoup, C.; Labas, V.; Combes-Soia, L.; Harichaux, G.; Druart, X.; Leahy, T.; Graaf, S. P. de
Publisher
Elsevier Ltd, Oxford, UK
Citation
Journal of Proteomics, 2017, 155, pp 1-10
AbstractFull Text

Reproduction of small ruminants can be controlled by several methods developed in recent decades through diverse synchronization protocols. Some of these methods involve administration of hormones that modify the physiological chain of events involved in the oestrous cycle. In the synchronization...

Author(s)
Lozano-González, J. F.; Uribe-Velásquez, L. F.; Osorio, J. H.
Publisher
Universidad de Caldas, Manizales, Colombia
Citation
Veterinaria y Zootecnia, 2012, 6, 2, pp 134-147
Abstract

This review considers the use of prostaglandin F and its synthetic analogues (PG) for controlling the estrous cycle of the ewe. Aspects such as phase of the estrus cycle, PG analogues, PG doses, ovarian follicle development pattern, CL formation, progesterone synthesis, ovulation rate, sperm...

Author(s)
Fierro, S.; Gil, J.; Viñoles, C.; Olivera-Muzante, J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2013, 79, 3, pp 399-408
CABI Book Info
Cover for Reproductive technologies in farm animals.

This second edition of Reproductive Technologies in Farm Animals has been revised to provide an up to date account of the key techniques employed in manipulating reproduction in farm animals, including beef and dairy cattle, pigs, sheep, goats, buffaloes, camelids, horses and poultry. This book has ...

Author(s)
Gordon, I.
ISBN
2017 CABI (H ISBN 9781780646022)
Type
Book

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