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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

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
Abstract

Reproduction of small ruminants can be controlled by several methods developed in recent decades. Some of these involve administration of hormones that modify the physiological chain of events involved in the sexual cycle. Methods which utilise progesterone or its analogues are based on their...

Author(s)
Abecia, J. A.; Forcada, F.; González-Bulnes, A.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Animal Reproduction Science, 2012, 130, 3/4, pp 173-179
Abstract

Controlled reproduction in small ruminants is an important economic factor. Of major interest is oestrus induction or synchronization as a prerequisite for timed insemination as well as the control of seasonality and increase of numbers of offspring which can be achieved by medication or taking...

Author(s)
Meinecke-Tillmann, S.; Meinecke, B.
Publisher
Schattauer GmbH, Stuttgart, Germany
Citation
Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere, 2008, 36, 2, pp 86-94
Abstract

The aim of this experiment was to improve the reproductive performance of a short-interval prostaglandin (PG)-based protocol for timed artificial insemination in sheep, using a short-term nutritional treatment. During the breeding season (March-April), 132 multiparous and 61 nulliparous Corriedale...

Author(s)
Fierro, S.; Gil, J.; Viñoles, C.; Soca, F.; Banchero, G.; Olivera-Muzante, J.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2014, 149, 3/4, pp 158-162
Abstract

The articles on these proceedings are a compilation of articles on reproduction wild and domestic animals. Topics discussed are: cryopreservation in horses; effect of prostaglandin treatment in animals; artificial insemination in Brazil; bull selection for natural breeding; ultrasound utilization...

Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Revista Brasileira de Reprodução Animal, 2015, 39, 1, pp 11-250
Abstract

The objective of this experiment was to study the reproductive performance obtained after a short-interval prostaglandin (PG) F2α-based protocol for timed artificial insemination (TAI) in sheep (Synchrovine®: two injections of PG 7 d apart), including a GnRH analogue at 24 or 36 h after the second...

Author(s)
Olivera-Muzante, J.; Gil, J.; Viñoles, C.; Fierro, S.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Animal Reproduction Science, 2013, 138, 3/4, pp 175-179
Abstract

A novel method for oestrus-ovulation synchronization in sheep followed by fixed time insemination is presented herewith. Mature dry ewes (n=28) of Karagouniko breed being at an unknown stage of the oestrous cycle, were used during the middle of breeding season. The treatment protocol consisted of...

Author(s)
Deligiannis, C.; Valasi, I.; Rekkas, C. A.; Goulas, P.; Theodosiadou, E.; Lainas, T.; Amiridis, G. S.
Publisher
Blackwell Publishing, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2005, 40, 1, pp 6-10
AbstractFull Text

The reproduction seasonality in sheep and goats is the major limitation in improving productivity. Controlling the seasonality in sheep is one of the most significant features of intensive production systems along with being a valuable aid to sheep management. Various treatments have been proposed...

Author(s)
Uribe-Velásquez, L. F.; Restrepo Cadavid, R.; Osorio, J. H.
Publisher
Universidad de Caldas, Caldas, Colombia
Citation
Veterinaria y Zootecnia, 2009, 3, 2, pp 14-27
Abstract

A review dealing with cattle, pigs and sheep.

Author(s)
Smidt, D.
Citation
Zuchtungskunde, 1977, 49, 6, pp 405-416

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