Clinical and genetic studies of disturbed milk production in sows

Disturbed milk production was studied in Swedish Yorkshire sows. In a clinical study of 13 sows, milk production ceased rapidly 23 days after farrowing without any general signs of infection. Prolactin levels were low in these sows when milk production ceased. An intensive study of two sows indicate...

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Bibliographic Details
Published in:Acta agriculturae Scandinavica. Section A, Animal science Animal science, 2001-02, Vol.51 (1), p.1-6
Main Authors: Rydhmer, L. (SLU, Uppsala (Sweden)), Johansson, K, Eliasson-Selling, L, Persson, A
Format: Article
Language:English
Subjects:
Bayesian Analysis
CERDAS
HEREDABILIDAD
HERITABILITE
HERITABILITY
LACTACION
LACTATION
LACTATION DISORDERS
Lactation Failure
MILK YIELD
PROLACTIN
PROLACTINA
PROLACTINE
RENDEMENT LAITIER
RENDIMIENTO LECHERO
SOWS
Swine
TRASTORNOS DE LA LACTACION
TROUBLE DE LA LACTATION
TRUIE
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Summary:Disturbed milk production was studied in Swedish Yorkshire sows. In a clinical study of 13 sows, milk production ceased rapidly 23 days after farrowing without any general signs of infection. Prolactin levels were low in these sows when milk production ceased. An intensive study of two sows indicated that the disturbance is not caused by low prolactin levels around farrowing. A genetic analysis based on the litter recording scheme was performed on 10 684 sows, of which 3.3% were reported as having disturbed milk production. The heritability of disturbed milk production was estimated to be 0.7 with a threshold model, using Gibbs sampling.
ISSN:0906-4702
1651-1972
DOI:10.1080/090647001300004736