Effects of Semen Sexing Agent (Heifer-PlusTM) in Dairy Cow Reproduction

Effects of Semen Sexing Agent (Heifer-PlusTM) in Dairy Cow Reproduction

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This study was conducted to investigate the use cryopreserved bovine sperm treated with Heifer-PlusTM Prefreeze kit and its effect on pregnancy rates calf sex ratio embryonic death, abortion, stillbirth and twinning rates in Holstein Friesian cows A total of 120 Holstein Friesian cows were enrolled in this study.Sixty cows were artificially inseminated (AI) Custom Shape 2-Layer Wood Sign whit cryopreserved bovine sperm treated with Heifer-PlusTM PREFREEZE kit (experimental group; EG) and 60 cows served as control group (CG).Findings showed that the AI of cows with bovine semen treated with Heifer PlusTM Prefreeze kit had slight increases in conception rate (5%) and in female and male ratio (18.

5%).Use of cryopreserved bovine sperm treated with Heifer-PlusTM Prefreeze kit did not affected embryonic death, abortion, stillbirth and Queen Sleigh Storage Bed twinning ratios in Holstein Friesian cows.Further investigations are needed with larger numbers of tested dairy cows, which enable wide spread adoption of this technology.