What to do about the poor fertility of black guinea pigs? These methods can effectively increase the breeding rate

In order to improve the economic benefits of raising black guinea pigs, we must first improve their fertility. Improving the fertility of black guinea pigs mainly starts from the following aspects. Let us take a look together below!

Formulate a reasonable breeding plan

Implementing semi-intensive breeding or intensive breeding can improve the fertility of black guinea pigs. However, according to China's actual conditions and feeding management level, traditional breeding methods should still be adopted, that is, mating after the young guinea pigs are weaned. The weaning time for young guinea pigs is preferably 15 to 20 days of age, with about 4 litters per year. In terms of timing, breeding should mainly be concentrated in early spring and autumn, and conditions should be created for winter breeding.

Strict selection of breeding stock

When selecting breeding guinea pigs, the breeding guinea pigs are required to be healthy, have a strong physique, and have strong sexual desire. Selection should also be based on pedigree and records of reproduction and production performance. The testes of male guinea pigs are required to be large and symmetrical; male guinea pigs with cryptorchidism or a single testis must not be kept for breeding. Female guinea pigs are required to have strong fertility and good mothering ability. The vulva should be normal, the nipples should be large, and a pair should be normal. Female guinea pigs with few offspring, a low conception rate, and poor lactation should be culled in time.

Scientific feeding

Maintaining the breeding body condition of breeding guinea pigs is one of the important measures to improve the fertility of black guinea pigs. Before the mating season arrives, the amount of protein feed and minerals and vitamins fed should be gradually increased. For overly fat breeding guinea pigs, the amount of high-energy feed should be appropriately restricted, while overly thin breeding guinea pigs should be given strengthened feeding to maintain breeding body condition, so that the breeding guinea pigs have vigorous sexual function.

Reasonable age structure

In the breeding guinea pig herd, young, prime-age, and old breeding guinea pigs should have a reasonable age structure. Breeding guinea pigs are generally used for about 2 to 5 years, and about 1/3 are selected to be culled each year. Therefore, more than 1/3 of reserve guinea pigs should be retained each year, and breeding guinea pigs should be further selected from them as a source. The entire breeding guinea pig herd should be mainly composed of young and prime-age animals. If the proportion of old breeding guinea pigs is too large, it will affect the entire guinea pig herd's reproduction.

Avoid inbreeding ⟧13⟧In guinea pig production, inbreeding must be avoided. Inbreeding easily produces stillbirths and deformed young guinea pigs, and can also cause infertility in offspring or reduced viability in offspring. Breeding guinea pig farms or production farms should establish a breeding guinea pig record system. Breeding and reproduction records and pedigree data are important bases for bloodline mating selection and for preventing inbreeding. Even specialized guinea pig farmers should have a clear understanding of the blood relationships of the breeding guinea pigs they raise.

In guinea pig farming, be sure to avoid inbreeding. Inbreeding easily produces stillborn and malformed baby guinea pigs, and can also cause infertility in offspring or reduced viability of the offspring. Breeding farms or production farms should establish a breeding guinea pig record system. Breeding and reproduction records and pedigree data are an important basis for mating based on bloodline and for preventing inbreeding. Even specialized guinea pig-raising households should have a clear understanding of the blood relationships of the breeding guinea pigs they raise.

Timely mating

1. Mating within 1 to 19 hours after the female guinea pig gives birth, that is, mating during the postpartum estrus, makes conception easy. However, the female guinea pig is required to be in strong physical condition, and the feeding management level required is also relatively high, so it should not be used continuously.

2. After the young guinea pigs are weaned, mating the female guinea pig within 1 to 2 days often makes conception easy.

3. After a false pregnancy ends, mating during estrus also makes conception easy.

In short, the fertility level of black guinea pigs is affected by many factors. To improve the fertility of black guinea pigs, comprehensive measures must be taken to be effective.