Effects of dietary zinc levels on semen quality of breeding rams of Liaoning Cashmere Goat
Abstract：The study was conducted to investigate the effect of dietary zinc levels on semen quality of breeding rams of Liaoning Cashmere Goat. A total of 20 breeding rams with weight similar and age similar were randomly divided into 4 groups. The control group was fed a basic diet, and the test groups were 20, 40 and 80 mg/kg of zinc added in the basal diet. The result showed that： （1）There was significant effect by adding dietary zinc to breeding rams on semen volume, sperm concentration, sperm motility and post-thaw- ing motility （P〈0. 05）. （2）The pH of semen and methylene blue fading time were not markedly affected by dietary zinc levels （P〈0. 05）. （3）Dietary zinc levels on breeding rams has a certain role in promoting to reduce the fresh semen and frozen semen malformation rate （P〉0. 05）. Based on the quality indicators of fresh semen and frozen semen under the conditions of the experimental diets, semen quality of breeding rams of Liaoning Cashmere Goat is highest with 40 mg/kg of dietary zinc added in the basal diet.
Keywords：Zinc' Liaoning Cashmere Goatsemen qualityfrozen Semen
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 48-51 )