Method for increasing litter size of multiparous animals

A technology of litter size and animals, applied in the direction of animal feed, animal feed, application, etc., can solve the problems of unsuitable lighting operation and high cost

Active Publication Date: 2015-09-30
内蒙古金草原生态科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of extending the darkness requires high-cost environmental control facilities, and it is not suitable to turn on the lights under these conditions

Method used

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  • Method for increasing litter size of multiparous animals
  • Method for increasing litter size of multiparous animals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This example relates to a method for increasing the litter size of multifetal animals by taking melatonin orally during pregnancy, specifically adding melatonin to the feed or drinking water of Kunming white mice in the first 19 days of pregnancy, Kunming The daily dosage of melatonin taken by white mice is 0.00035g / kg, taken 3 times a day, and the taking interval is 8 hours. The litter size was counted on the day after delivery.

[0024] The results showed that taking melatonin at a daily dose of 0.00035g / kg could significantly increase the litter size of Kunming white mice.

Embodiment 2～5

[0026] Compared with Example 1, the only difference is that in Examples 2-5, the daily doses of melatonin taken are 0.00015 g / kg, 0.0035 g / kg, 0.035 g / kg, and 0.055 g / kg, respectively.

[0027] The results show that taking melatonin at a daily dose of 0.035g / kg and 0.0035g / kg can significantly increase the litter size of Kunming white mice, but when taking melatonin at a daily dose of 0.00015g / kg, there will be no Effect, when the daily dose of melatonin is 0.055g / kg, the litter size will be reduced.

Embodiment 6

[0029] Compared with Example 1, the only difference is that in Example 6, the daily dose of melatonin taken on days 1 to 6 is 0.0035 g / kg, and the dose of melatonin taken on days 7 to 12 during pregnancy is 0.0050 g / kg. g / kg, the dose of taking the melatonin on the 13th to 19th day of pregnancy is 0.0065g / kg.

[0030] The results showed that taking melatonin according to the above-mentioned scheme with an incremental amount of 0.0015 g / kg can significantly increase the litter size of Kunming white mice.

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Abstract

The invention provides a method for increasing the litter size of multiparous animals through oral administration of melatonin. The method increases the litter size of the multiparous animals by adding melatonin in fodder or drinking water of the multiparous animals in the gestation period so as to achieve the purpose of improving the fecundity of the animals. The method can increase the average litter size of mammals like mice by 0.48-1.38, and provides a good reference for research on improving the fecundity of mammals.

Description

technical field [0001] The invention belongs to the field of agricultural animal husbandry and veterinary medicine, and in particular relates to a method for increasing the litter size of multi-fetal animals by taking melatonin orally during pregnancy. Background technique [0002] Maximizing the reproductive rate of multiparous animals is one of the goals pursued by animal husbandry production, and it is an important way to improve the economic benefits of animal husbandry. However, there are still many problems in actual production. The main breed of commercial pigs in my country is Du Dachang, which has a high lean meat rate and a fast growth rate, but the litter size is relatively low. The annual pig production in my country is about 600 million, while the stock of sows is as low as 41 million, with an average of 15 sows per year. Among them, rats and mice are the most important and most commonly used experimental animals in the experiment of trying to improve the repr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02A23K1/16
CPCA01K67/02
Inventor 刘国世张鲁汪锋姬鹏云王静张珍珍
Owner 内蒙古金草原生态科技集团有限公司
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