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AbstractFull Text

Administration of GnRH in the luteal phase of estrous in dairy cows induces an increase of LH levels, with the modification of the growth waves of the ovarian follicles. GnRH induces ovulation or atresia of the dominant follicle and the recruitment of a new wave of follicular growth. The GnRH...

Author(s)
Șipețan, C. C.; Bencsik, I.; Dronca, D.; Peț, I.; Ștef, L.; Dumitrescu, G.; Simiz, E.; Carabă, I.; Nicula, M.; Marcu, A.; Ahmadi, M.; Iancu, T.; Păcală, N.
Publisher
Banat's University of Agricultural Science and Veterinary Medicine, Timisoara, Romania
Citation
Scientific Papers: Animal Science and Biotechnologies, 2017, 50, 1, pp 46-48
Abstract

The objective of the present study was to describe the behavioural, ovarian and hormonal characteristics of the oestrous cycle of Criollo cattle. Twenty-two cycling cows subjected to oestrus synchronisation were used to take blood samples every 4 h, to determine luteinising hormone (LH) until...

Author(s)
Quezada-Casasola, A.; Avendaño-Reyes, L.; Ramírez-Godínez, J. A.; Macías-Cruz, U.; Correa-Calderón, A.
Publisher
CSIRO, Collingwood, Australia
Citation
Animal Production Science, 2014, 54, 3, pp 277-284
Abstract

Background: The aim of the study is to evaluate the effectiveness of thermographic monitoring, using the temperature changes of perianal and perivulvar areas for the determination of estrus in Anatolian Shepherd bitches. Fifteen bitches were used in the study. Blood and vaginal smear samples were...

Author(s)
Olğaç, K. T.; Akçay, E.; Çİl, B.; Uçar, B. M.; Dașkın, A.
Publisher
BioMed Central Ltd, London, UK
Citation
Journal of Animal Science and Technology, 2017, 59, 21, pp (9 October 2017)
Abstract

Author(s)
Chopin, J.
Publisher
Australian Veterinary Association (N.S.W) Division, Artarmon, Australia
Citation
Australian Equine Veterinarian, 2014, 33, 2, pp 46-53
Abstract

Author(s)
Zak, L.; Patterson, J.; Cameron, A.; Hockley, D.; Dyck, M.; Foxcroft, G.; Rogan, D.
Publisher
American Association of Swine Veterinarians, Perry, USA
Citation
Evidence-based practice: how do we get there? American Association of Swine Veterinarians 42nd Annual Meeting Proceedings, 5-8 March, 2011, Phoenix, Arizona, USA, 2011, pp 197-200
AbstractFull Text

In dairy cows and buffaloes, summer heat stress (HS) reduces milk yield and delays return to pregnancy leading to financial loss. Clues for effective interventions against summer infertility (SI) lie in understanding the underlying mechanisms. This article reviews current knowledge on the...

Author(s)
Wakayo, B. U.; Brar, P. S.; Prabhakar, S.
Publisher
Faculty of Veterinary Medicine, University of Tripoli, Tripoli, Libya
Citation
Open Veterinary Journal, 2015, 5, 1, pp 6-10
Abstract

This article presents some advances in ovulation timing (OVT) in bitches. The physiology of the oestrous cycle and puberty are discussed as well as vaginal cytology and speculum examination, sample handling, progesterone and luteinizing hormone (LH) tests, OVT and type of insemination planned,...

Author(s)
Lopate, C.
Publisher
The Society for Theriogenology, Montgomery, USA
Citation
Clinical Theriogenology, 2012, 4, 4, pp 543-549
AbstractFull Text

Author(s)
Cameron, A.; Patterson, J.; Ambrose, D. J.; Foxcroft, G. R.; Dyck, M. K.
Publisher
Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Canada
Citation
Banff Pork Seminar Proceedings 2010, 2010, pp A11
Abstract

We examined the effect of inseminating mixed parity sows (n=231) once with fewer sperm at different times relative to ovulation. Lactation length was 19 days and sows received an IM injection of 600 IU equine chorionic gonadotrophin (eCG) 12 h before weaning. At 80 h after eCG injection, sows...

Author(s)
Garcia, J. C.; Abad, M.; Kirkwood, R. N.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2007, 100, 3/4, pp 397-401
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

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