Phenotypic Relationships of Common Health Disorders in Dairy Cows to Lactation Persistency Estimated from Daily Milk Weights
نویسندگان
چکیده
منابع مشابه
Phenotypic relationships of common health disorders in dairy cows to lactation persistency estimated from daily milk weights.
The objective of this study was to investigate the phenotypic relationship between common health disorders in dairy cows and lactation persistency, uncorrelated with 305-d yield. The relationships with peak yield and days in milk (DIM) at peak were also studied. Daily milk weights and treatment incidence records of 991 Holstein lactations from experimental dairy herds at Virginia Tech and Penns...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2007
ISSN: 0022-0302
DOI: 10.3168/jds.2007-0077