Efeito de diferentes fontes de lipídios sobre a capacidade de penetração espermática de galos semi pesados

Abstract

The addition of lipids, omega 3 sources, to diet, can raise the percentage of polyunsaturated fatty acids (PUFAs) in the cell membrane of the sperm and it increases his ability to react with the perivitelina egg membrane, and thus, increase the ability of fertilization. Through the sperm penetration test is possible to assess the interaction of the sperm with the egg perivitelina membrane, that is reflected in the number of holes formed in the membrane.This experiment aimed to, evaluate, through the sperm penetration test, the reproductive performance of roosters medium weight, fed with different sources of lipids. We used a total of 20 cocks, with age of 37 weeks, fed with diets containing different sources of lipids. The experimental arrangement was completely at random, with 4 treatments and 6 repetitions, the treatments used were: T1- Control; T2- addition of 4% corn oil; T3- addition of 4% fish oil and T4- addition 4% flexseed oil. The treatments they obtained higher averages were T3 and T4, with 213 and 210 respectively holes, not statistically different among themselves (5%), the lowest averages were those of T1 and T2 respectively with 128 and 138 holes in the membrane perivitelina. The treatments did not differ statistically between themselves using a significance level of 5%, because the value of p > 0.05.