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4. Reproductive performance of dairy cows from parturition to conception

Author

Berglund, B., E. Edqvist, L., Janson, L., Kindahl, H., Larsson, K., Malmqvist, A., Swensson, C., and Revues Inra, Import

Subjects
lcsh:QH426-470, animal diseases, Birth weight, media_common.quotation_subject, Ice calving, Fertility, [SDV.GEN.GA] Life Sciences [q-bio]/Genetics/Animal genetics, Meeting Report, Biology, Preliminary analysis, Animal science, Genetics, Genetics(clinical), ComputingMilieux_MISCELLANEOUS, Ecology, Evolution, Behavior and Systematics, media_common, lcsh:SF1-1100, White (horse), business.industry, food and beverages, General Medicine, Biotechnology, lcsh:Genetics, Herd, Animal Science and Zoology, Calf mortality, lcsh:Animal culture, business, Gestation length
Abstract

A total of 5,49 6 calvings of Black and White and Red and White breeds was recorded in 7 Pedigree Herds. The preliminary description of data covers some of the fertility traits, calf mortality and dystocia. Birth weight and gestation length were also analysed. Overall twinning rate was z. 3 p. ioo. The number of inseminations per calving was i.gi for Black and White cows and 2.07 for Red and White cows. Difficult calvings were more frequent in heifers: i3 p. ioo in Black and White heifers, 21 p. 100 in Red and White heifers, and about 3 p. 100 in cow sof

Published
1980

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