. Manual of farm animals; a practical guide to the choosing, breeding, and keep of horses, cattle, sheep, and swine. Animal industry; Horses; Cattle; Sheep; Swine. THE BREEDING OF HORSES 109 days after the first service, and to return them each week there- after for at least one month. Barrenness in mares. — It often happens that mares are served normally, yet fail to conceive. Some of the causes of this difficulty are readily understood and eas- ily prevented, while others are not so well known and are perhaps beyond the control of breeders. Mares that are not served till late in life are oft
. Manual of farm animals; a practical guide to the choosing, breeding, and keep of horses, cattle, sheep, and swine. Animal industry; Horses; Cattle; Sheep; Swine. THE BREEDING OF HORSES 109 days after the first service, and to return them each week there- after for at least one month. Barrenness in mares. — It often happens that mares are served normally, yet fail to conceive. Some of the causes of this difficulty are readily understood and eas- ily prevented, while others are not so well known and are perhaps beyond the control of breeders. Mares that are not served till late in life are often diffi- cult to impregnate at the first time. This is often noticed in mares that have spent a good part of a lifetime at hard work. In such cases it is due perhaps to the long inactivity of the generative organs. An excess of rich and stimulating foods is a common cause of non-breeding; and the dangers attend- ing parturition are more than trebled in the case of fat animals. Milk-fever never occurs in mares that are kept actually at work and are in only moderate flesh at the time of foaling. On the other hand, barrenness may be due to poor feeding and hard work, the system being weakened by the lack of suflScient nutrition. Undue sexual excitement at the most active stage of heat is often responsible for the mare not conceiving. In addition to these, there is a long line of causes of barrenness in mares over which the breeder has little or no control, such as. Fig. 46. — Aeab Hobsb used as a Polo 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, The Macmillan company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthorses, booksubjectsh
