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Animal Science Database

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Abstract

The objective was to determine the efficiency of insemination with sexed semen at spontaneous estrus and synchronisation of ovulation, and the effects of days in milk, insemination number, parity, and daily milk yield on pregnancy rates in lactating Holstein cows. A total 1,000 first to fourth...

Author(s)
Kurykin, J.; Jalakas, M.; Kaart, T.; Jaakma, Ü.
Publisher
Lietuvos Veterinarijos Akademija, Kaunas, Lithuania
Citation
Veterinarija ir Zootechnika, 2017, No.75, pp 30-35
Abstract

This study evaluated the effect of breed and follicular status of Boer and indigenous goats on response to superovulation and embryo yield. The oestrous cycles were synchronized with progestagen for nine days and superovulated with porcine follicle-stimulating hormone. Does were cervically...

Author(s)
Mpebe, N. A.; Gonzalez-Bulnes, A.; Lehloenya, K. C.
Publisher
Taylor & Francis, Abingdon, UK
Citation
Journal of Applied Animal Research, 2018, 46, 1, pp 141-145
Abstract

The present study was undertaken to record the data on duration of estrus, estrus cycle length, size of the follicle at ovulation, period of gestation and estrus after foaling (foal heat) in respect of Zanskari mares for 4 consecutive breeding seasons (2010-2014). The mares were closely monitored...

Author(s)
Talluri, T. R.; Ravi, S. K.; Singh, J.; Legha, R. A.; Yash Pal; Gupta, A. K.; Singh, R. K.; Tripathi, B. N.
Publisher
Indian Council of Agricultural Research, New Delhi, India
Citation
Indian Journal of Animal Sciences, 2016, 86, 2, pp 163-167
Abstract

This experiment evaluated the reproductive performance, herd exit dynamics, and lactation performance of dairy cows managed with a voluntary waiting period (VWP) of 60 or 88 d. Secondary objectives were evaluating VWP effect on cyclicity status, uterine health, systemic inflammation, and body...

Author(s)
Stangaferro, M. L.; Wijma, R.; Masello, M.; Thomas, M. J.; Giordano, J. O.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 1, pp 717-735
Abstract

Our objectives were to evaluate ovarian dynamics and fertility comparing 2 treatments at the start of a progesterone (P4)-based fixed-time artificial insemination (FTAI) protocol and 2 treatments at the end of the protocol. Thus, 1,035 lactating Holstein cows were assigned in a random phase of the...

Author(s)
Melo, L. F.; Monteiro, P. L. J., Jr.; Surjus, R. S.; Drum, J. N.; Wiltbank, M. C.; Sartori, R.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2016, 99, 11, pp 9227-9237
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
Abstract

The objective of the study was to determine the efficiency of ovsynch (OV) versus presynch-ovsynch (P-OV) protocol for synchronization of ovulation and timed artificial insemination (TAI) in female buffaloes. The OV group (n=40) received gonadotrophin-releasing hormone (GnRH) on day 0 (random day...

Author(s)
Oropeza, A. J.; Rojas, Á. F.; Velazquez, M. A.; Muro, J. D.; Márquez, Y. C.; Vilanova, L. T.
Publisher
Springer, Amsterdam, The Netherlands
Citation
Tropical Animal Health and Production, 2010, 42, 6, pp 1149-1154
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

The aim of the present study was to evaluate the effects of the PGF treatment given at the onset of a synchronization of ovulation protocol using a norgestomet (NORG) ear implant on ovarian follicular dynamics (Experiment 1) and pregnancy per AI (P/AI; Experiment 2) in cyclic (CL present) Bos...

Author(s)
SáFilho, M. F.; Marques, M. O.; Gimenes, L. U.; Torres Júnior, J. R. S.; Batista, E. O. S.; Carvalho, J. P. B.; Baruselli, P. S.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2014, 144, 1/2, pp 1-5
Abstract

The objective of this study was to compare a GnRH-based to an estrogen/progesterone (E2/P4)-based protocol for estrous cycle synchronization and fixed timed artificial insemination (TAI), both designed for synchronization of ovulation and to reduce the period from follicular emergence until...

Author(s)
Pereira, M. H. C.; Rodrigues, A. D. P.; Martins, T.; Oliveira, W. V. C.; Silveira, P. S. A.; Wiltbank, M. C.; Vasconcelos, J. L. M.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2013, 96, 11, pp 6904-6914

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