RESEARCHES REGARDING THE CALVING SEASON INFLUENCE ON QUANTITATIVE AND QUALITATIVE MILK PRODUCTION IN ROMANIAN BLACK AND WHITE COWS

SIMONA BAUL, L.T. CZISZTER, S. ACATINCĂI, G. STANCIU, SILVIA ERINA, I. TRIPON, D. GAVOJDIAN

Abstract


The aim of the paper was to study the influence of the calving season on the milk, butterfat and protein yield per normal lactation. Researches were carried out on 125 lactations from Romanian Black and White cows from the Didactical Farm Timisoara. Lactation were divided into the four seasons as follows: summer with 34 lactations, winter with 19 lactations, spring with 35 lactations, and autumn with 37 lactations. Results showed that winter calving cows produced the highest milk, butterfat and protein yields per normal lactation (4932.2 kg, 189.63 kg, and 153.79 kg, respectively).


Keywords


calving season; milk; butterfat; protein; yield; Romanian Black and White

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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
Bioengineering Faculty of Animal Resources
300645, Timişoara, Calea Aradului 119, Romania

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