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Journal of Dairy Science Vol. 22 No. 1 1-5
© 1939 by American Dairy Science Association ®
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The Lactogen Content of the Pituitary Gland of the Lactating Rat1

R. P. Reece, I. L. Hathaway and H. P. Davis

New Jersey Agricultural Experiment Station, New Brunswick, N. J.
Nebraska Agricultural Experiment Station, Lincoln, Nebr.

ABSTRACT

The pituitary glands collected from rats 51 hours after parturition contained 10.52 bird units per pituitary gland, those glands collected from rats 16 days following delivery contained 9.59 bird units per gland and those collected from rats 23 days after delivery contained 8.31 bird units.

On the basis of these results it is suggested that the lactogenic hormone plays no major rôle in determining the height of the lactation curve, but may be a factor in determining the rate of decline in milk production.

FOOTNOTES

1 Contribution from the Departments of Dairy Husbandry, New Jersey Agricultural Experiment Station, Journal Series Paper, and Nebraska Agricultural Experiment Station, Journal Series No. 211.






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Copyright © 1939 by the American Dairy Science Association ®.