GENOTYPIC PARAMETERS OF MILK PRODUCTION IN PRIMIPAROUS DAIRY ROMANIAN SPOTTED BREED FROM RESEARCH STATION AND AGRICULTURE DEVELOPMENT LOVRIN –TIMIŞ COUNTY

GH. NISTOR, ELEONORA NISTOR, V. BAMPIDIS

Abstract


In a herd of 117 Romanian Spotted breed primiparous cows, from the Research Stationand Agriculture Development Lovrin –Timiş County, the heritability and phenotypiccorrelations for milk production, milk fat yield and milk protein yield were estimated. Formilk fat and milk protein yield, the heritability was 0.75 and 0.88 respectively, whichmeans that these characters can be selected together. For milk production the heritabilityvalue was only 0.31. A positive and very high correlation was registered between milkproduction and milk fat production, +0.97. Between milk production and milk proteinproduction the correlation was also high and positive +0.83, with a very close value of thecorrelation between milk fat production and milk protein production, +0.86.

Keywords


milk; milk fat; milk protein; correlation; heritability

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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
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
Phone: +40-256-277160, Fax.: +40-256-277110