The nutritional level plays an important role in the ovulation rate and lambing rate of Boer goats. The ovulation rate is related to the fat condition of ewes, and ewes with medium to high fat condition have a higher ovulation rate. Sheep can observe better follicles on the ovaries of Boer goats using ultrasound. Low fat ewes increase their ovulation rate by 2% -2.5% and lambing rate by 1.5% -2% for every 1.0 kg increase in weight before mating. Therefore, short-term optimal feeding is a good way to improve body fat and promote ovulation. Use sheep ultrasound to detect the Backfat thickness of Boer goats for judgment.

Insufficient nutrition can cause stunted development and dysfunction of the reproductive organs in livestock, delaying the onset of estrus in young female animals, leading to inhibited estrus, irregular estrus, reduced ovulation rate, delayed mammary gland development, and even increased mortality rates in early embryos and newborn offspring; Under B-ultrasound, abnormal conditions of the ovaries, uterus, and fetus in Boer goats can be observed. Excessive nutrition leads to excessive fat deposition in the ovaries, fallopian tubes, and uterus of female animals, which is not conducive to follicular development, ovulation, fertilization, and the movement of fertilized eggs. It also limits the expansion of the pregnant uterus and fetal development.

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