Bibliographic citations
Verástegui, J., (2019). Programas de sincronización de ovulación en vacas Holstein en un establo lechero de la Cuenca de Lima [Tesis, Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/3973
Verástegui, J., Programas de sincronización de ovulación en vacas Holstein en un establo lechero de la Cuenca de Lima [Tesis]. : Universidad Nacional Agraria La Molina; 2019. https://hdl.handle.net/20.500.12996/3973
@misc{renati/241997,
title = "Programas de sincronización de ovulación en vacas Holstein en un establo lechero de la Cuenca de Lima",
author = "Verástegui Díaz, Joan Marcel",
publisher = "Universidad Nacional Agraria La Molina",
year = "2019"
}
The objective of this research was to evaluate ovulation synchronization programs in Holstein dairy farm in Lima región, because the intensive production of dairy cattle reports low rates reproductive. Is therefore is to contrast two programs os synchonization of ovulation evaluating percentage of synchronization, percentage of conception, percentage of pregnacy and the valuation economic of the each treatment. For this study, 133 multiparous cows Holstein, were selected, with the days of lactation over 55 days, which are randomly distributed between the two treatments. The treatments for the study were: T1 OVSYNCH CLASSIC (n = 62), (day0): Selection0 of the animals and application of 50ug of synthetic equivalent of GnRh between 2:00 pm to 4:00 pm, (day 7) administration of 1ml of PGF2α, (day 9) administration of 5ml of GnRh and artificial insemination (IA) of the animals, while T2 OVSYNCH MODIFIED (n = 71), (day0): Selection of animals and application of 50ug of synthetic equivalent of GnRh between 2:00 pm to 4:00 pm, (day 8) administration of 1ml of PGF2α, (day 10) administration of 5ml of GnRh and artificial insemination (AI) of the animals that were re-inseminated in this group of animals 24 hours after the last treatment. The results of the study allowed to observe that both treatments had similar percentages of synchronization (85.5 per cent a vs. 87.3 per centa) without statistical differences (p <0.05), not so for the percentages of conception (11.3 per centa vs 24.2 per cent b) and percentage of pregnancy (9.7 per cent a vs 21.1 per cent b) where if there were statistical differences in both cases (p <0.05). It should be noted that making economic valuation of both treatments had better rate of cost per pregnancy for the second treatment (S /. 473.60 vs S / .312.60), recommending the use of the second treatment as a strategy to improve reproductive efficiency of herd dairy.
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