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Big Duroc new strain breeding method

A new strain, Duroc's technology, applied in animal husbandry and other fields, can solve problems such as uneven quality, failure to meet farmers' expectations, and failure to meet the market.

Active Publication Date: 2017-09-15
浙江美保龙种猪育种有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Duroc strains with uneven quality cannot meet the needs of the market and the expectations of farmers, which is not conducive to the production of large-weight commercial pigs

Method used

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the examples.

[0030] A method for selecting a new strain of large-scale Duroc, comprising the following steps:

[0031] 1) Construct a basic core group, select Duroc breeding pigs with large body characteristics, and form a core group consisting of 10 boars of 7 bloodlines and 60 sows, as the ancestor F 0 Generation breeding.

[0032] 2) Let F 0 Breeding of the first generation of Duroc breeding pigs, each Duroc boar is matched with 6 to 10 sows and inbreeding is avoided, each sow is bred three times a day in estrus, and from the next generation of pigs, select Duroc 7 with large body characteristics 10 boars and 60 sows form the parent generation F 1 generation.

[0033] 3) by F 1 10 Duroc boars and 60 sows of the first generation were mated, each Duroc boar was mated with 6 to 10 sows, and each sow was mated three times a day in estrus, and 7 Duroc pedigree males with large body character...

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Abstract

The invention discloses a big Duroc new strain breeding method, and belongs to the technical field of boar breeding. The big Duroc new strain breeding method includes: establishing a basic key group; allowing F0 generation Duroc boars to breed, and selecting 10 big Duroc male pigs having 7 blood relationships and big bodies and 60 female pigs to form a parent F1 generation; hybridizing the Duroc male pigs and the female pigs of the F1 generation, and selecting 10 big Duroc male pigs having 7 blood relationships and big bodies and 60 female pigs to form a parent F2 generation; and hybridizing the Duroc male pigs and the female pigs of the F2 generation, repeating the steps, selecting one generation each year, and breeding a big Duroc new strain after 3-4 generations. The breeding method can shorten the breeding generation interval, and improve the genetic progress; the big Duroc new strain has stable genetic performance and excellent production performance is acquired, and a product pig using the big Duroc new strain as a male parent is beautiful in body form, and is popular to markets; and the big Duroc new strain breeding method can meet the demand for high big fast-growth Duroc boars, and has very important significance.

Description

technical field [0001] The invention belongs to the technical field of breeding pigs, and in particular relates to a method for breeding new large-sized Duroc strains. Background technique [0002] The classification of pigs can be divided into fat type, bacon type, and meat type according to the economic type. According to the source, it can be divided into local varieties and exotic varieties. Pigs are classified according to body size and can be divided into large, medium and small pigs. The so-called large-bodied breeding pigs specifically refer to breeding pigs that are tall, fast-growing in the middle and late stages, thin in backfat, high in feed utilization, and have excellent genes that can efficiently produce large-weight (130-150kg) commercial pigs. Since the development direction of commercial pigs in the market is to produce large-scale pigs, which are sold with large weight, the price of commercial pigs is the highest when they are raised to 150-200 kg, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 沈建军舒鑫标黄黎娟邢晓军彭俊平宋占学
Owner 浙江美保龙种猪育种有限公司
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