Early pregnancy diagnosis is of great significance to dairy cows. It is an important technical measure for female livestock to preserve pregnancy, reduce empty foetus, increase livestock products and improve reproduction rate. For a breeding herd, if 13.5 estrus cycles are missed artificially, it is equivalent to one less calf and a loss of milk production in a lactation period. Through early pregnancy diagnosis, pregnant and non-pregnant female livestock can be identified as early as possible and managed in groups. Non-pregnant cows can be supplemented in time, thereby reducing empty foetus, shortening the calving interval, improving the reproduction rate of dairy cows, reducing ineffective feeding, and thus improving economic benefits.

Application prospects of veterinary B-ultrasound in cattle farms

In actual operation, we can easily determine the growth stage of the corpus luteum through ultrasonic monitoring, so as to accurately grasp the development status of the corpus luteum and follicles and make timely breeding.

The shape of the bovine ovary is flat oval, the size of a thumb belly, attached to the ovarian mesentery, with an ovarian door on its attachment edge. The veterinary B-ultrasound image shows a clear boundary, and its interior is a solid homogeneous echo, the echo is slightly higher than the uterus, and the boundary with the surrounding tissue is obvious. When the follicle develops to mature follicle, veterinary B-ultrasound shows that the follicle is a black liquid dark area, the follicle is round, the follicle wall is strongly echoed, and the border is clear and smooth.

When using veterinary B-ultrasound to diagnose ovarian diseases in cows, the shape and size of the ovary on the affected side, the size of the cyst cavity and the shape of the corpus luteum can be clearly seen, giving people an intuitive image, so that early diagnosis and early treatment can be achieved, which can effectively reduce the elimination rate of cows. Increase the service life of cows.

Veterinary B-ultrasound has many advantages in the diagnosis of reproduction and reproductive diseases of cows, especially in the diagnosis of early pregnancy, the diagnosis time is advanced to 28 days, the image is clear, intuitive and reliable, and it can effectively improve the breeding efficiency of cows. There will be broad application prospects in the technical measures to ensure that cows have one birth per year.

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