Effects of isoflavones on reproductive functions of ram lambs

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Title: Effects of isoflavones on reproductive functions of ram lambs
Author: Patton, Thor
Abstract: A study was conducted to determine if the isoflavones found in soybean‐based proteins were a detriment to ram lamb production and /or rate to puberty . New born Rambouillet and Suffolk ram lambs were randomly assigned either to the treatment (n=20 ) or control group (n=19 ) . Treatment received soybean based feed from creep to finishing , while the control received cottonseed meal based feed . At weaning , serum samples and weights were collected to evaluate estradiol and testosterone levels . At an average of seven months of age , blood samples , final weights , semen samples and scrotal circumference measurements were taken . Scrotal circumference and weaning weight were decreased (p <0 .05 ) and in general no other aspect was affected (p >0 .05 ) . However , numerically semen counts tended to be reduced . Additionally , estradiol was found to be higher at weaning (p >0 .05 ) in the treatment and lower at final collection , testosterone acted inversely .
URI: http : / /hdl .handle .net /2346 .1 /30010
Date: 2012-05-12

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Patton, Thor Effects of isoflavones on reproductive functions of ram lambs. Master's thesis, Angelo State University. Available electronically from http : / /hdl .handle .net /2346 .1 /30010 .

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