Huang Yan-kun
2006
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Quality indicators
Journal
Journal of Zhengzhou College of Animal Husbandry Engineering
Abstract
This experiment were researched into effect of clomifene citrate and bromocriptine mesilate on rate of laying hen performance,rate of hatchable egg,average egg weight,rate of double egg,rate of broken egg.breeding hens were divided randomly into group three from hens which were fed in the same ridgepole and range hens in the middle of ladder coop.groupⅠ21 hens were added into clomifene citrate 12.5mg/bird/day for 4 days,again using the drug 4 days after an interval of 4 days;groupⅡ30 hens were added into bromocriptine mesilate 0.5mg/bird/day for 5 days,again using the drug 5 days after an interval of 5 days;control group Ⅲ 588 hens were not added any drug.After 24 days the result showed in three group rate of laying hen performance were 72%,85%,70% respectively;rate of hatchable egg were 94%,92%,96% respectively;rate of broken egg were 0.8%,1.5%,1.6% respectively;rate of double egg were 1.8%,2.1%,1.4% respectively and enhanced production after used drugs.