How to buy Holstein cows
Buying cows is technically certain. Some breeders do not know how to select cows and are often deceived. Some dairy cows purchased were not pure, and the milk production was very low; some purchased cows and eliminated cows and caused economic losses to themselves. In order to buy a good dairy cow, attention should be paid to the following issues: First, buy dairy cows first to see pure and impure varieties, to see the cow's appearance does not meet the standards of the Holstein cows. The basic characteristics of high-quality dairy cows are: Black-and-white flowers in the whole body, and the boundaries of flowers are obvious. The skin is thin and thin, blood vessels are exposed, muscles are not developed, and there is less deposition of subcutaneous fat. The head is long and elegant, the neck is long and the chest is narrow, the chest and abdomen are wide and deep, and the hindquarters and the breast are well developed. The head and neck, the back thigh and other parts have obvious angular profiles. Looking from the side, looking ahead, looking up are all wedge-shaped. 1. Look sideways: extend the top line forward, then connect the breast with the ventral line, extend it to the front of the cow, and intersect with the extension of the top line to form a wedge. It can be seen that the cow's body is shallow and its hindquarters are deep, indicating that the digestive system, reproductive organs, and lactation system are well developed and have high milk yields. 2. Look forward: From the top of the head, extend straight below the left and right shoulders, respectively, and intersect with the straight line under the chest, forming a wedge. This wedge indicates that the scapular muscles are not much, the chest is wide, and the vital capacity is large. 3. Looking up: Two lines are drawn from the head to the left and right lumbar angles, respectively, and intersect with the line connecting the two waist angles to form a wedge shape. This wedge indicates that the hindquarters are large and well developed. Second, to buy dairy cows to see the crotch and breasts. The breasts are well-developed, basin-shaped or bowl-shaped, with smooth underside, large nipples, four nipples, moderate distances, multiple breast flexions, few breast hairs, good skin elasticity, and highest milk production. The cow's crotch should be wide, long and flat, that is, the distance between the waist and the end of the ischium should be wide, and should be on a horizontal line. The distance between the hip, waist, and ischium looks like an isosceles triangle. Third, buy dairy cows to see if there are diseases. When picking cows, pay special attention to whether there are diseases. Observe all the parts of the cow's body, watch the excrement, and look at the feeding situation. We must not purchase cows in the affected areas. Fourth, the choice of dairy cows depends on the age of oral hygiene. In this regard, technicians often look at the number of teeth and angles to determine the age of the cows. For those aged cows that are eliminated, they cannot afford to buy high milk production. Fifth, when purchasing heifers, in addition to observing the appearance of the body, we must also carefully look at the calf's breast bladder, nipple, and genitalia. Sixth, buy pregnant cows, to check whether the accurate pregnancy, asked about milk production. In order to avoid buying empty cows. Specifically, it can be summarized as: Oxtail should be fine, there is no neck bag, there must be a peak, the neck should be fine. The head should be small. From the rear, look at the cow's vertical line, high hind legs, front legs, breasts, four flat breasts, breast fullness, must have milk wells, four structures are not developed muscle, fat is small, coat color is clear, black and white flowers are obvious, skin To relax, (next to the cow), the gap between the ribs should be wide, so that you can insert two fingers, the gantry horns. China Agricultural Network Editor
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