Conception rate differences in sexed vs. non-sexed semen

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Title: Conception rate differences in sexed vs. non-sexed semen
Author: Brooks, Kayla L.
Abstract: The objective of this study was to determine if sexed semen has similar conception rates as non -sexed semen . Eighty -four Angus females from the Angelo State University’s Management , Instruction and Research Center were synchronized at the beginning of this study ; however , only 54 showed signs of estrus and were artificially inseminated (10 Heifers and 44 multiparous cows ) . The 54 females were split randomly into three different treatment groups . Heifers and cows in treatment one were inseminated with Y -bearing sexed semen . Females in treatment two were inseminated with X -bearing sexed semen ; while the last treatment was our control which received non -sexed semen . Results in heifers and cows were similar , and no differences were noted among the three treatment groups (P >0 .5 ) . Differences might be noted with a larger number of females . Date of parturition was estimated using ultrasound , and is a viable management tool because it is possible to predict , on average , within 9 days of parturition with a 36 day maximum and an exact prediction for the minimum .
URI: http : / /hdl .handle .net /2346 .1 /21
Date: 2011-06-21


Brooks, Kayla L. Conception rate differences in sexed vs. non-sexed semen. Master's thesis, Angelo State University. Available electronically from http : / /hdl .handle .net /2346 .1 /21 .

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