RT Journal Article
SR Electronic
A1 Kráčmar, Stanislav
A1 Buňka, František
A1 Hoza, Ignác
A1 Čechová, Leona
A1 Valášek, Pavel
T1 Changes in amino acids composition of cows colostrum (during first 72 hours after parturition)
JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
YR 2014
VO 55
IS 1
SP 81
OP 94
DO 10.11118/actaun200755010081
UL https://acta.mendelu.cz/artkey/acu-200701-0010.php
AB 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 = b&lt;sub&gt;0&lt;/sub&gt; + b&lt;sub&gt;1&lt;/sub&gt;/x + b&lt;sub&gt;2&lt;/sub&gt;/x&lt;sup&gt;2&lt;/sup&gt;.