The Quality of Ejaculate in Cocks of Brown Leghorn, Oravka and Brahma Breeds

Cyril Hrnčár, Lenka Barborová, Jozef Bujko

Abstract


In this experiment, ejaculates were sampled from cocks of free pure chicken breeds: Brown Leghorn, Oravka and Brahma. The 5 cocks from each breed were housed individually and the ejaculate was sampled regularly five times during the laying period of hens. We determined the volume, concentration of spermatozoids, total amount of produced spermatozoids, pH ejaculate, colour ejaculate and morphological changes of sperm cell. The motility of spermatozoa of the cocks was 64.48% (Brown Leghorn), 62.25% (Oravka) and 57.51% (Brahma). The highest volume of ejaculate was found in Brown Leghorn (0.72 cm3), the lowest in Brahma (0.49 cm3). The White Leghorn and Oravka had an intermediate colour between the opaque and the creamy-white, the Brahma had opaque colour. The ejaculate pH for all the breeds ranged from 7.01 for Oravka to 7.04 for Brahma. The highest sperm concentration was in Oravka (2.59x106/mm3), the lowest in Brahma (1.91x106/mm3). We found higher number of morphologically abnormal sperm cells in Brahma (46.32%), in Brown Leghorn and Oravka had similar value (42.75%, respectively 42.88%).


Keywords


Brown Leghorn; Oravka; Brahma; cock; ejaculate quality

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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
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