J. Anim Sci.
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J. Anim Sci. 1972. 34:270-272.
© 1972 American Society of Animal Science
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Endocrine Function in Normal and Agalactic Sows

W. C. Wagner1, 2,

Iowa State University, Ames 50010

Abstract

Plasma corticoid response following ACTH treatment, thyroid cell height, adrenal gland cortisol content and gross weight of the ovaries, anterior pituitary, thyroid and adrenal were studied in 26 agalactic, 17 normal lactating and seven non-pregnant cyclic sows. Significant changes observed were increased thyroid cell height in normal lactating sows and larger ovaries in cyclic sows. There was a wide variation in the corticoid response to 0.3 U ACTH/Kg body weight within each of the three groups. Some of the variation seemed to be related to the environmental and/or genetic background of the pig.

Footnotes

1 Veterinary Medical Research Institute.

2 The author gratefully acknowledges the assistance of Dr. E. Molokwu, P. Harris and P. Holmes.






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Copyright © 1972 by the American Society of Animal Science.