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ON THE EFFECTS OF ADMINISTRATION OF EXTRACTS OF PITUITARY BODY AND CORPUS LUTEUM TO MILCH COWS
Author(s) -
Gavin W.
Publication year - 1913
Publication title -
quarterly journal of experimental physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 101
eISSN - 1469-445X
pISSN - 0370-2901
DOI - 10.1113/expphysiol.1913.sp000128
Subject(s) - udder , corpus luteum , subcutaneous injection , zoology , administration (probate law) , medicine , biology , hormone , mastitis , pathology , political science , law
1. That under conditions of ordinary farm practice no commercial benefit arises from the administration to dairy cows of these glandular extracts, whether given by the mouth, by subcutaneous injection, or by intravenous injection. 2. That intravenous injection of pituitary extract may be followed by an increased collection of milk in the lower portions of the udder, but that, in spite of this, no alteration in the total quantity per diem or in the quality of the milk occurs. It must, be emphasised that these results were obtained for commercial purposes, and apply only to ordinary farm practice. The cows were fed as usual, and milked twice a day only. Further observations would be required to determine whether an increase could be gained by simultaneous high feeding or frequent removal of the milk during the injection period. The author wishes to express his thanks to Professor Schäfer for advice, material, and assistance, without which it would have been impossible for him to carry out the above work.