نوع مقاله : مقالات علمی- پژوهشی
نویسندگان
1 گروه علوم دامی، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقـق اردبیلی، اردبیل، ایران.
2 دانشگاه فردوسی مشهد
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In this investigation 13699 data related to milk production from 2716 Holstein first calving and daughter
from 167 sire cows were analyzed based on random regression model (RR/CF) and REML Method incomplete
lactating (5-90 days) and (5-120 days) in correlations to complete lactating were 0.67 and 0.72, respectively with
progress in complete 5-240 day was 0.91 the correlation value for lactating persistency trait for incomplete
lactating period (5-150 days) were 0.68 and as increase in milk production period this value reaches to 0.91 for
incomplete period (5-240 days). Also this correlation for two months milk production and lactating persistency
were 0.88 and 0.59, respectively, and for one month milk production and lactating persistency reached higher
than 0.90.
کلیدواژهها [English]
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