เอกสารการประชุมวิชาการและเสนอผลงานวิจัย มหาวิทยาลัยทักษิณ ครั้งที่ 19 2552 - page 730

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Effects of caponization produres on productive performances
of Red and Naked-Neck native chickens
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Visan Odton1, Worawit Wanicharpichart2, Chaiyawan wattanachant2, Rattanapon Sondat 1,
Supanni Bikeaw1 and Ooi-jai Kunkumhang 1
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‡ÎµÎµ‡´ : ńn¡ºÊœÁ¤º°Š ńn˜°œ ¤¦¦™£µ¡„µ¦Ÿ¨·˜ ‡»–£µ¡Žµ„
Abstract
Effects of caponization produres on productive performances of native chickens were studied. Using
2x4 factorial with one control in CRD. There were two type of native chicken ; Red and Naked-Neck chicken and
method of caponization were surgical castration (SC), hormonal implantation (HI) and supplemented with 2% of
Pueraria mirifica in powder (PM) and male (M) compared control group (female ; F) at 14-22 week of age were
studies.It was found that, during 0-4 week of experiment, HI group has significantly greater body weight gain and
better feed conversion ratio than did chickens iwith other tratmenttrea. However, no significantly different
(P>0.05) in any productive performances were found among treatment during 4-8 and 0-8 week of experiment. In
term of carcass quality,no significawe HI had significantly different) highepercentage of abdominal fat in chicken
with HI was significantly different (P<0.01) than those of other treatments.
Keywords : native chicken, caponization, growth, carcass quality
1 Faculty of Technology and community development, Thaksin University, Papayom, Patthalung, 93110.
2 Department of animal science, Faculty of Natural Resource, Prince of Songkla University, Hat Yai, Songkhla, 90112.