Matters needing attention in the breeding of bamboo rats

Paired reproduction of Rattus japonicus

When buying, if the female rat is insufficient, you can arrange the male and female pairing, and the pairing must be the cooperation of the male and female rats of different litters (refers to the birth). Such a male-female pairing is easy to make detailed breeding records and is conducive to maintaining purebred breeds. This method is often used in breeding.

Group breeding of Rattus norvegicus

It is made up of 1 male, 2 female or 1 male, 3 female, but most methods are matched into 2 male, 4 female, 2 male, 6 female, or 3 male and 12 female. In this method, females can be in the same nest, males must not be born in the same nest, and attention should be paid to the affinity between male and female mice during the selection. Male and female co-breeding for a week, there are still fights or repeated estrus, indicating that the combination of male and female is not suitable for matching, but should be rematched.

Monogamy of bamboo rat

Bamboo rats have a good memory and are basically monogamy. Once paired or reproduced, it is very difficult to disassemble and reorganize. Therefore, no matter whether it is pairing or matching, proper arrangements must be made from the beginning of gregariousness.

Prevention of inbreeding of bamboo rodents

All male and female mice with direct genetic relationship within three generations are not suitable for pairing breeding. Therefore, male and female mice in the same litter cannot be paired or matched directly, and must be crossed with another litter in order to avoid inbreeding. In larger farms, after weaning for one month, the offspring of different litters are raised in large ponds and sold in the gregarious group, so all introduced breeders should pay attention to this problem.

Mating techniques of bamboo rodents

The main results are as follows: 1. The routine breeding method of bamboo mice: the female mice that have never given birth, raised by males and females from a small mixed group, are allowed to choose to mate freely, and the pregnant female mice are separated and raised separately after they are found pregnant. After 30-35 days of weaning, the female rats who have given birth are transferred to Dachi to be raised in groups with other male and female rats, or separated from the original male rats. If the nutritional condition is good, the weaning time is also the estrus time of the female rat, and the male and female can be mated after 2-3 days. If it is found that the weaned female rat bites its offspring and there is no lack of feed, it indicates that the female rat is in estrus ahead of time and the female rat must be isolated in time so that the male rat can breed with it in time.

2. Blood matching method of bamboo mouse (not recommended): this method is an effective way to shorten the reproductive cycle and improve the reproductive ability of female rats. when male and female are raised in a cage, male and female should be separated when they give birth. 12 hours after giving birth, the mood of the female is stable. When looking for the performance of male rats, "blood matching" can be carried out. The method is to put the female rats in the cage of male rats twice 12-48 hours after giving birth, and then recombine with two male rats respectively. The two male rats must be raised in groups with their mothers from an early age and are close to each other, otherwise they will fight endlessly when they meet. The first mating can be carried out 12-24 hours after delivery, and the second mating can be carried out 25-48 hours after delivery. Each time of mating is 1 hour. After mating, the mother is put back to the litter room to feed the baby. In this way, repeated breeding can increase the litter size of the conception rate. Only with the implementation of "blood matching" can five babies be born in one year, and only with the implementation of multiple breeding, the litter size of one child can reach more than 5-6, but this method is not suitable for beginners to try.