Bamboo mice reproduce several times a year. What are the characteristics of pregnancy of bamboo mice born several times a year?

Bamboo mouse must be no stranger to many people, and we can often see it in our life. Bamboo rats have high nutritional value, so there are a lot of people raising them now. However, when breeding bamboo rats, reasonable reproduction is very important, and there are a lot of skills to be mastered when breeding, so let's take a look at it.

Bamboo rats reproduce several times a year.

Bamboo rats reproduce 2 litters in the whole year, with 1 litter per fetus, with 3 offspring in the majority. Seven babies are born in three and a half years every year, because the estrus period of the bamboo mouse is 1 Mel 3 days, and the interval is about 15 mi 18 days. If the bamboo mouse misses the estrus, it will be delayed for more than 18 days. The pregnancy period is about 45 mi 60 days, the lactation period is about 30 days in summer, and at least 35 days in winter. There are many litters, and the cubs are also very fastidious. If they are weaned at once, the mother rats are prone to mastitis. That has a very bad effect on the fertility of the mother mouse, or does not conceive for a long time, so, according to this calculation, a sexually mature mother rat can give birth to less than four births a year.

How many babies do bamboo rats have in a year?

In general, there are 3 to 5 bamboo rats and 2 to 4 bamboo mice a year. Different species of bamboo rats give birth to different fetuses. Generally, bamboo rats can reproduce after 6 months of age, and more than 10 bamboo mice are bred every year. The gestation period of Yinxing bamboo mouse is 45 days, each fetus is 1-5, and the lactation period is one and a half months. The Yinxing bamboo rat reached sexual maturity in 8-10 months, the gestation period was about 45 days, the lactation period was 30-40 days, and each fetus was 1-5, three births a year. The Chinese bamboo rat reaches sexual maturity at 7-8 months. The pregnancy period of the female bamboo rat is about 2 months, and the lactation period is about 40 days. Each fetus is 2-6, and 3-4 babies a year. The red-cheeked bamboo mouse is a rare species with a small number. It reaches sexual maturity in 8-10 months. The gestation period is 45-50 days, and each fetus is 3-8. The gestation period of bamboo mice is 60 days, the lactation period is 30-50 days, and there are 5 mice in each fetus.

What are the characteristics of bamboo mouse pregnancy

1. Pregnant female bamboo rats usually prefer sleep to activity. Sit in a squatting position and put the nest in order. However, there are individual female bamboo rats turning frequently in the pool, restless and do not like to tidy up their nests. Usually bite the broom when cleaning. These phenomena do not affect future birth and lactation. Pregnant female bamboo rats will attack male rats in the same pool and even bite.

2. The body weight increases gradually with the passage of time of pregnancy, the abdomen is bulging and the groin is full. The nipple of 1-15 days of early pregnancy is ruddy, and the nipple of 15-30 days of pregnancy is pink and upright, which is obviously bigger and more round than the early stage, with hairless area around the nipple and hair lying around. The genitals are slightly dilated. In the late 30-45 days of pregnancy, the nipples are protruding, round and upright. Pink and white, individual female mice can make milk. The genitals are obviously dilated with mucus. It was in the state of labor after 48 days.

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.

Bamboo mouse breeding, generally not more than four births a year, in breeding must pay attention to breeding, it and people, close relatives are not suitable for breeding. After breeding, we need to strengthen management, to judge whether reproduction is successful or not, there are many skills, in the above detailed introduction, I hope it can be helpful to you.