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Title: | Changes in amino acids composition of cows colostrum (during first 72 hours after parturition) | ||||||||||
Author: | Buňka, František; Kráčmar, Stanislav; Hoza, Ignác; Čechová, Leona; Valášek, Pavel | ||||||||||
Document type: | Peer-reviewed article (English) | ||||||||||
Source document: | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. 2007, vol. 55, issue 1, p. 81-94 | ||||||||||
ISSN: | 1211-8516 (Sherpa/RoMEO, JCR) | ||||||||||
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DOI: | https://doi.org/10.11118/actaun200755010081 | ||||||||||
Abstract: | Changes in amino acid spectrum of colostrum within the period of 2 to 72 hours post partum were studied in dairy cows of the Czech Red Pied cattle with a genetic admixture of Black Pied Lowland breed (n = 10). Five of them were on the 1st lactation and 5 on the 2nd and/or higher lactations. Within the study period, the contents of non-essential amino acids (NEAA) and essential amino acids (EAA) decreased by 22.8 ? 63.2% and 27.3 ? 65.2%, resp., in dairy cows on the 1st lactation while in those on the 2nd and following lactations the corresponding values were 22.0 ? 63.7% and 24.9 ? 71.7%, respectively. The dependence of the course of changes in the AA spectrum of cow?s colostrum on the time interval elapsing after the parturition could be characterised by a regression equation y = b0 + b1/x + b2/x2. | ||||||||||
Full text: | http://acta.mendelu.cz/media/pdf/actaun_2007055010081.pdf | ||||||||||
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