THE EFFECT OF ADVANCE IN LACTATION AND GESTATION ON MAMMARY ACTIVITY

The rate of milk secretion in farrow cows may be expressed as See PDF for Equation, in which y = yield and t = time from calving. Pregnancy causes a decrease in yield which may be expressed as See PDF for Equation, in which i = inhibition or decrease in yield and p = time from conception. The consta...

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Detalles Bibliográficos
Autores principales: Gaines, W. L., Davidson, F. A.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1926
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2140830/
https://www.ncbi.nlm.nih.gov/pubmed/19872255
Descripción
Sumario:The rate of milk secretion in farrow cows may be expressed as See PDF for Equation, in which y = yield and t = time from calving. Pregnancy causes a decrease in yield which may be expressed as See PDF for Equation, in which i = inhibition or decrease in yield and p = time from conception. The constant K appears to be the same for various groups but b is roughly proportional to a. The decrease in yield associated with pregnancy is interpreted as due to a hormone. The hormone hypothesis also affords an interpretation of the increasing rate of milk secretion which occurs for a short time following parturition.

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