"Variabilita kaseinu ve vztahu k dal\u0161\u00EDm dus\u00EDkat\u00FDm l\u00E1tk\u00E1m v ml\u00E9ce" . . "Variabilita kaseinu ve vztahu k dal\u0161\u00EDm dus\u00EDkat\u00FDm l\u00E1tk\u00E1m v ml\u00E9ce"@cs . "295267" . "1"^^ . "Variability of casein and nitrogenous matter in milk"@en . "RIV/62156489:43210/10:00155270" . "Z(MSM 432100001)" . "cow milk; protein; urea; nutrition"@en . . "1"^^ . . . . . "This work deals with relationship between protein, casein and urea in cow's milk during a year. It was analysed about 6200 samples of milk every month. It showed that milk protein and casein concentrations were lower in summer months. The variability of casein number was confirmed (in January was casein number 72; in August was casein number 77). The maximum content of urea was in January (19,9 mg /100 ml) and the minimum content of urea was in October (26,5 mg /100 ml). About 20 % of cows have deficiency of energy between May and August; about 36 % has deficiency of energy in June yet. Cows suffered surfeit of energy between October and January, in November was about 33 % of cows. There was determined deficiency of protein in feeding amount between November and January."@en . "C\u00EDlem pr\u00E1ce bylo vyhodnotit ro\u010Dn\u00ED variabilitu dus\u00EDkat\u00FDch l\u00E1tek ml\u00E9ka, konkr\u00E9tn\u011B celkov\u00FDch b\u00EDlkovin, kaseinu a mo\u010Doviny na z\u00E1klad\u011B v\u00FDsledk\u016F rozboru ml\u00E9ka v centr\u00E1ln\u00ED laborato\u0159i. Ze sledov\u00E1n\u00ED vz\u00E1jemn\u00E9 souvislosti jednotliv\u00FDch slo\u017Eek ml\u00E9ka se uk\u00E1zalo, \u017Ee se zvy\u0161uj\u00EDc\u00EDm se obsahem b\u00EDlkovin se zvy\u0161oval obsah kaseinu, obsah mo\u010Doviny nejprve vzr\u016Fstal a to do intervalu 3,6 a\u017E 3,8, pak sp\u00ED\u0161e klesal. Hodnota kaseinov\u00E9ho \u010D\u00EDsla m\u00EDrn\u011B klesala od ledna do srpna ( 73 >> 72 ), v z\u00E1\u0159\u00ED se zv\u00FD\u0161ila na 75 a do prosince hodnota kaseinov\u00E9ho \u010D\u00EDsla stoupala a\u017E na 77. Obdob\u00ED kv\u011Bten a\u017E srpen trp\u011Blo nad 20 % dojnic nedostatkem energie, v \u010Dervnu se dokonce tato hodnota zv\u00FD\u0161ila a\u017E na 36 % ve\u0161ker\u00FDch dojnic. V m\u011Bs\u00EDc\u00EDch \u0159\u00EDjen a\u017E leden m\u011Bly dojnice p\u0159ebytek energie, v listopadu to byla t\u00E9m\u011B\u0159 t\u0159etina z celkov\u00E9ho po\u010Dtu. Na druh\u00E9 stran\u011B bylo v krmn\u00E9 d\u00E1vce b\u00EDlkovin nedostatek v m\u011Bs\u00EDc\u00EDch listopad a\u017E leden, po zbytek roku bylo v krmn\u00E9 d\u00E1vce b\u00EDlkovin sp\u00ED\u0161e p\u0159ebytek. U zna\u010Dn\u00E9ho po\u010Dtu sledovan\u00FDch vzork\u016F ml\u00E9ka byl zaznamen\u00E1n zv\u00FD\u0161en\u00FD obsah"@cs . . "Variabilita kaseinu ve vztahu k dal\u0161\u00EDm dus\u00EDkat\u00FDm l\u00E1tk\u00E1m v ml\u00E9ce"@cs . "0139-7265" . . . "43210" . . . "Variabilita kaseinu ve vztahu k dal\u0161\u00EDm dus\u00EDkat\u00FDm l\u00E1tk\u00E1m v ml\u00E9ce" . "\u0160ustov\u00E1, Kv\u011Btoslava" . . . . "[7A63CCD463DC]" . . . "C\u00EDlem pr\u00E1ce bylo vyhodnotit ro\u010Dn\u00ED variabilitu dus\u00EDkat\u00FDch l\u00E1tek ml\u00E9ka, konkr\u00E9tn\u011B celkov\u00FDch b\u00EDlkovin, kaseinu a mo\u010Doviny na z\u00E1klad\u011B v\u00FDsledk\u016F rozboru ml\u00E9ka v centr\u00E1ln\u00ED laborato\u0159i. Ze sledov\u00E1n\u00ED vz\u00E1jemn\u00E9 souvislosti jednotliv\u00FDch slo\u017Eek ml\u00E9ka se uk\u00E1zalo, \u017Ee se zvy\u0161uj\u00EDc\u00EDm se obsahem b\u00EDlkovin se zvy\u0161oval obsah kaseinu, obsah mo\u010Doviny nejprve vzr\u016Fstal a to do intervalu 3,6 a\u017E 3,8, pak sp\u00ED\u0161e klesal. Hodnota kaseinov\u00E9ho \u010D\u00EDsla m\u00EDrn\u011B klesala od ledna do srpna ( 73 >> 72 ), v z\u00E1\u0159\u00ED se zv\u00FD\u0161ila na 75 a do prosince hodnota kaseinov\u00E9ho \u010D\u00EDsla stoupala a\u017E na 77. Obdob\u00ED kv\u011Bten a\u017E srpen trp\u011Blo nad 20 % dojnic nedostatkem energie, v \u010Dervnu se dokonce tato hodnota zv\u00FD\u0161ila a\u017E na 36 % ve\u0161ker\u00FDch dojnic. V m\u011Bs\u00EDc\u00EDch \u0159\u00EDjen a\u017E leden m\u011Bly dojnice p\u0159ebytek energie, v listopadu to byla t\u00E9m\u011B\u0159 t\u0159etina z celkov\u00E9ho po\u010Dtu. Na druh\u00E9 stran\u011B bylo v krmn\u00E9 d\u00E1vce b\u00EDlkovin nedostatek v m\u011Bs\u00EDc\u00EDch listopad a\u017E leden, po zbytek roku bylo v krmn\u00E9 d\u00E1vce b\u00EDlkovin sp\u00ED\u0161e p\u0159ebytek. U zna\u010Dn\u00E9ho po\u010Dtu sledovan\u00FDch vzork\u016F ml\u00E9ka byl zaznamen\u00E1n zv\u00FD\u0161en\u00FD obsah" . "1" . "RIV/62156489:43210/10:00155270!RIV11-MSM-43210___" . "2010" . "CZ - \u010Cesk\u00E1 republika" . "12"^^ . "Variability of casein and nitrogenous matter in milk"@en . "V\u00FDzkum v chovu skotu : Cattle research" .