. Breeding of farm animals. Livestock. STERILITY IN BREEDING 249. Fig. 82—Red Polled Bull "Teddy's Best' in those animals that are kept closely confined, and hence becomes of prime importance in dairy cattle. This is particularly true in view of the fact that the value of a cow depends upon the normal functioning of her repro- ductive organs. Among work horses and meat- producing animals ster- ility does not attract so much attention, espe- cially with females, as it makes comparatively lit- tle difference to the owner whether they breed, or, in the case of horses, go to work, or in the c
. Breeding of farm animals. Livestock. STERILITY IN BREEDING 249. Fig. 82—Red Polled Bull "Teddy's Best' in those animals that are kept closely confined, and hence becomes of prime importance in dairy cattle. This is particularly true in view of the fact that the value of a cow depends upon the normal functioning of her repro- ductive organs. Among work horses and meat- producing animals ster- ility does not attract so much attention, espe- cially with females, as it makes comparatively lit- tle difference to the owner whether they breed, or, in the case of horses, go to work, or in the case of meat ani- mals, go to the butcher. The breeder should make a careful study of sterility, as the principal if not the sole value of his animals depends upon their productive powers. In such cases failure to breed may prove a financial disaster. If a num- ber of valuable brood mares, for example, kept exclu- sively for breeding, are mated with a sterile stallion, no foals will be produced the following season. This re- sults in a total loss of anticipated income. Further, each mare has diminished in value through her increase in age, and having been idle for a year, with the tendency to sterility intensified. Causes of sterility.—Among farm animals, reproduc- tion occurs as a result of a union, under favorable condi- tions, of a mature male germ cell with a mature female germ cell. The former are produced in the testicles of the male, the latter in the ovaries of the female. Any- thing which interferes with the normal physiological ac- tivities of either male or female, or with normal sexual intercourse, may result in sterility. The function of re-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harper, Merritt Wesley, 1877-. New York, Orange Judd
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlivesto, bookyear1914
