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Pastos y Forrajes

Print version ISSN 0864-0394On-line version ISSN 2078-8452


QUINTANA-UTRA, Mara Dunia; PREVAL AIMERICH, Bartolomé  and  PAIHAMA DANIEL, Kundy. Effect of body condition on the ovarian activity in cows. Pastos y Forrajes [online]. 2019, vol.42, n.3, pp.193-196. ISSN 0864-0394.

The objective of the study was to evaluate the effect of body condition (BC) on ovarian activity. The study was conducted in the Guayabal genetic farm, belonging to the Agricultural University of Havana -Mayabeque, Cuba-, with 57 empty cows from four dairy farms. The animals were under similar management and feeding conditions, and were divided into three groups according to the body condition scale for the cattle dedicated to milk production: I: < 2,5; II: 2,5-3,5; III: > 3,5. To determine the ovarian activity the general status was inspected and gynecological exploration was carried out. Afterwards, the cows were divided into two groups: those which showed anestrus and the ones that were cycling. A high percentage of anestrus cows with BC lower than 2,5 was found. Likewise, there was a low percentage of cows which were cycling in this group in the four studied dairy farms. Anestrus values of 48,0; 51 and 0 % were observed for groups I, II and III, respectively; while in the ones diagnosed as cows that were cycling after rectal palpation and could be incorporated to reproduction it was 16; 79 and 4 % for groups I, II and III, respectively. It is concluded that the cows with body condition lower than 2,5 had ovaries with characteristics compatible with functional anestrus; while the highest ovarian activity was shown in the cows that had BC between 2,5 and 3,5. To analyze possible solutions for the animals of this herd is recommended, due to the implications in subsequent milk production.

Keywords : estrus cycle; reproduction; cow.

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