Study of late embryo mortality in dairy cattle from highland
DOI:
https://doi.org/10.15381/rivep.v32i3.20417Keywords:
highlands, dairy cows, embryo mortality, Holstein, Brown, crossbreedAbstract
Dairy cattle breeding in the high Andean regions is limited due to the hypoxic environment, which may affect embryonic survival. The present study aimed to determine late embryonic mortality (EM) (28-, 35- and 42-days post-service) and its association with the number of calvings (0, 1, 2, 3, 4, ≥5) and milk yield (at 60 and 90 days) in Brown Swiss, Holstein and crossbred cows, under a semi-intensive rearing system at grazing in the Mantaro Valley (3300 meters above sea level). The overall late EM was 7% (14/203). An association was found between the number of calvings and the presentation of EM (r = 0.8), as well as between milk yield and EM (r = 0.9). The late ME in the cows of the Mantaro valley can be considered as low, and there would be a very close relationship with the factors of breed and parity.
Downloads
Downloads
Published
Issue
Section
License
Copyright (c) 2021 Carlos Arana, Olger Ramos, Nidia Llapapasca, Alfredo Delgado
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
AUTHORS RETAIN THEIR RIGHTS:
a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.
b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigaciones Veterinarias del Perú (RIVEP).
c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).