MORPHOLOGICAL INDICATORS OF PRIMARY COWS OF DIFFERENT GENOTYPES
MORPHOLOGICAL INDICATORS OF PRIMARY COWS OF DIFFERENT GENOTYPES
DOI:
https://doi.org/10.52578/2305-9397-2023-3-2-175-182Аннотация
В статье представлены результаты исследований морфологических показателей крови, минерального и белкового состава сыворотки крови коров-первотелок. Установлено влияние генотипа как на количество эритроцитов, так и на содержание гемоглобина в крови. Минимальным значением анализируемых показателей отличались коровы-первотелки черно-пестрой породы. Они уступали голштинским сверстникам немецкой селекции по количеству эритроцитов в крови зимой на 0,33•1012/л, летом – на 0,45•1012/л; по содержанию гемоглобина – на 2,47 г/л и 2,95 г/л соответственно, голландские голштинцы – на 0,46•1012/л и 0,68•1012/л, 3,42 г/л и 3,25 г/л, помеси ½ голштинцев немецкой селекции × ½ черно-белых - на 0,18• 1012/л и 0,09 • 1012/л, 1,40 г/л и 1,92 г/л, помеси ½ голштинской голландской селекции × ½ черной и пестрой – 0,24 • 1012/ л и 0,32 • 1012/л, 2,16 г/л и 2,40 г/л. Установлено влияние генотипа на содержание альбумина в сыворотке крови коров-первотелок. При этом их максимальным уровнем отличались животные голштинской породы зарубежной селекции II и III групп, чистокровные коровы–первенцы черно–пестрой породы I группы, помеси IV и V групп характеризовались промежуточным наследованием признака.
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