Research on the Breeding of Small Tailed Han Sheep Using B-ultrasound Machine

The small tailed Han sheep breeding industry will be a national gold industry with deep development, large-scale breeding, comprehensive processing, and export earnings. To expand the scale of aquaculture, breeding technology is one of the key links. Breeding is a necessary means to increase the number and quality of sheep herds. In addition, strengthening scientific management can reduce the occurrence of reproductive system diseases in small tailed Han sheep and improve their reproductive rate. Monitoring the development of follicles and ovulation time in small tailed Han sheep provides a scientific basis for accurate mating; Using a sheep ultrasound machine to accurately diagnose early pregnancy can reduce empty pregnancy and lower feeding costs.

The ovulation time of small tailed Han sheep is mostly in the late stage of estrus, and the conception rate is high during this period of mating. Due to the different ages of ewes, the timing of mating varies. The general experience is that "older ewes mate earlier, younger ewes mate later, and older ewes mate in between", which means that older ewes have a shorter duration of estrus and should be mated earlier after estrus; Young ewes have a short duration of estrus and should be mated early after estrus; The estrus duration of young ewes is relatively long, and the mating time should be slightly delayed; The estrus time of middle-aged ewes is moderate, and the mating time should be between the two. Repeated or multiple combinations are often used in production to improve conception rate.

For the occurrence of diseases, scientific management should be strengthened to prevent more serious than cure. Disease prevention and control are the top priority in sheep farming and the prerequisite for breeding high-quality sheep. Be careful to prevent the occurrence of reproductive system diseases in small tailed Han sheep, and use sheep ultrasound machines for detection and diagnosis. Only by preventing sheep diseases first can we ensure the improvement of their reproductive rate; It can also indirectly provide meat performance data, providing reference basis for seed selection and selection. In summary, the application of B-ultrasound machines in the breeding of small tailed Han sheep is of great significance and worthy of promotion.

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