Ovulatory response and embryo quality and development in superovulated Pelibuey ewes supplemented with polyunsaturated fatty acids in the diet
This study evaluated the effect of adding polyunsaturated fatty acids (PUFAs) to the diet on the number of corpora lutea, total cells and embryos collected, development and morphological quality of embryos recovered from superovulated Pelibuey ewes. Twentysix (26) Pelibuey ewes were randomly distributed into two groups: 1) (control) Diet based on grass and a supplement without fatty acids (WFA) and group 2) Same diet as WFA plus 4 % of total dry matter of the diet as corn oil as a source of PUFAs. The estrous cycle was synchronized with two injections of PGF2a. The superovulation (SO) treatment began on d 10 of the estrous cycle with 200 mg of FSHp, in decreasing doses for 4 d. On the third day of SO treatment, 15 mg of PGF2a were administered, and ewes were mated to a fertile ram. Embryos were collected on d 6 after mating. Numbers of CL (14.73 +- 1.87 vs 10.73 +- 1.42), total cells collected (9.18 +- 2.16 vs 4.18 +- 1.36) and EMB (6.72 +- 1.78 vs 3.09 +- 1.36) were higher (P
| Main Authors: | , , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias
2012
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| Online Access: | https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/1817 |
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