relationship between phenotypic sexual characters and semen characteristics in four strains of cocks in northern nigeria
نویسندگان
چکیده
a study was carried out to evaluate the secondary sexual characteristics of four strains of cocks, comprising of two (2) exotics; bovan nera black (bnb) and isa brown (isb), one (1) improved local strain, shika brown (sb) and one (1) unimproved local strain, normal feathered cock (nfc). a total of 64 birds (16 for each strain) at 36, 38, 40 and 42 weeks were used for the study. the result indicated that shank length, comb length, comb width, wattle length and wattle width were all significantly (p
منابع مشابه
Relationship between Phenotypic Sexual Characters and Semen Characteristics in Four Strains of Cocks in Northern Nigeria
A study was carried out to evaluate the secondary sexual characteristics of four strains of cocks, comprising of two (2) exotics; Bovan Nera Black (BNB) and Isa Brown (ISB), one (1) improved local strain, Shika Brown (SB) and one (1) unimproved local strain, normal feathered cock (NFC). A total of 64 birds (16 for each strain) at 36, 38, 40 and 42 weeks were used for the study. The result indic...
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The study was conducted to determine the semen characteristics of three genotypes of Nigerian indigenous cocks. Thirty Six (36) local breeding cocks comprising of 12 frizzle, 12 normal and 12 naked neck selected randomly from the poultry breeding unit of the University of Port Harcourt Teaching and Research farm was used for this study. Semen were collected from them by abdominal massage and an...
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عنوان ژورنال:
iranian journal of applied animal scienceناشر: islamic azad university - rasht branch
ISSN 2251-628X
دوره 4
شماره 3 2015
کلمات کلیدی
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