Sterility.

Poverty Bay Herald, Volume LXII, Issue 18596, 5 January 1935, Page 13

Sterility.

INQUIRY in regard to storility rocs 1 to show that in all probability several factors are involved, falling under the headings of (1) mineral deficiency, (2) partially infertile bulls, (3) infection. Under the first heading fall those instances dependent on insufficiency of minerals in the feed, or their presence in a ratio unsuitable to the maintenance of the animal's requirements. Bcfcrence must again be made to the necessity of better winter feeding of our herds. The nutritional aspect, at this particular time must not be lost sight of, and the aim. of every dairyfarmer should be improved conditions of feeding and also of shelter for his cows during' the winter months. Investigational work has shown the bull to be responsible in many instances for the occurrence of this trouble in a herd. Certain infections of the cow's genital organs are also involved'. Referring to this condition, 1 lie district superintendent, Dunodin, who has conducted some keen observations regarding the trouble, states in his report: "There is every possibility ot some dietetic, factor having an influence in the production of functional storility."—Report, Director, Livestock Division.