Estrualization method for sow in mating period

Abstract

The invention discloses an estrualization method for a sow in a mating period. The estrualization method is performed according to the following steps: 1) cleaning the body surface and vagina of the sow by using 49-51 DEG C warm water at 9:00-10:00 in the morning every day, wiping the body surface and vagina of the sow after cleaning, and inputting 30-40mL of aphrodisiac used by the sow in the mating period into the uterus of the sow by using an inseminating syringe every day; and 2) feeding, namely carrying out small group captivity, feeding each sow with an early pregnancy material three times every day according to the feeding quantity of 1.6-1.8kg, wherein the material fed at 10:00-11:00 accounts for 1 / 2 of total feed amount per day, the material fed at 17:00-18:00 accounts for 1 / 3 oftotal feed amount per day, and the material fed at 21:00-22:00 accounts for 1 / 6 of total feed amount per day.

Description

technical field [0001] The invention belongs to the technical field of pig breeding, and in particular relates to a method for aphrodisiac of sows in mating period. Background technique [0002] Sow mating, the goal of the mating room is to use healthy mating boars to mating sows in good condition to increase the conception rate, and the daily management of weaned sows should focus on estrus stimulation. After weaning, the breasts swell due to milk production, and when milk production and reabsorption are in balance, the lactation process gradually ceases. After 2-3 days of weaning, breast swelling decreases, cellulite begins to decompose, and FSH (follicle-stimulating hormone) stimulates oocytes to develop into follicles, and the ovarian follicle ligament will increase rapidly and begin to secrete estrogen in order to receive fertilized eggs for the uterus To prepare and stimulate the symptoms of estrus, estrogen will promote the secretion of LH (luteinizing hormone), whic...

AI Technical Summary

Problems solved by technology

[0003] At present, when sows in pig farms are mating, due to reasons such as poor estrus of weaned sows or unreasonable mating methods, etc., the first mating or re-mating of multiparous sows is unsuccessful, and the proportion of sows that have been empty for a long time If the proportion is large, the feeding cost will increase, and there will be a large economic loss. In addition, due to the inability to breed in time, the pig farm's litter rate will be greatly affected, and it will be difficult to improve the economic benefits, which is not conducive to the development of the pig farm.

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