CN1871903B - Method for breed porker by using Changbai mountain wild boar as male parent and Songliao black pig as female parent - Google Patents

Abstract

A method for culturing the hybrid meat pig includes such steps as hybridizing between the Changbai mountain wild boar as male parent and Songliao black pig as female pig, selectively culturing the hybrid descendant to obtain Changbai mountain black pig, and transverse hybridizing between said Changbai mountain black pig as male parent and Songliao black pig as female parent. The resultant descendant features its excellent pork.

Description

With the Changbai Mountain wild boar is that male parent Songliao black pig is maternal method of cultivating carnivorous pig

Technical field

The present invention relates to the breeding method of a kind of carnivorous pig, especially disclosing a kind of is that male parent Songliao black pig is maternal method of cultivating carnivorous pig with the Changbai Mountain wild boar, belongs to animal breeding technique field.

Background technology

The Changbai Mountain wild boar has very high reproduction rate and young baby's survival rate, and characteristics such as strong stress resistance, disease resistance are strong, crude feed tolerance, meat flavor uniqueness, but this kind also exists and is unfavorable for raising the shortcomings such as slow and meat palatability difference of growing.Therefore, with the Changbai Mountain wild boar as male parent by hybridization, can cultivate the meat quality better, unique flavor, corss combination that can production high-quality high-grade pork is new varieties.Data of literatures does not still have and utilizes Songliao black pig and Changbai Mountain wild boar to carry out the bibliographical information of the supporting system of selection cross by retrieval.

Summary of the invention

The invention provides a kind of is that male parent Songliao black pig is maternal method of cultivating carnivorous pig with the Changbai Mountain wild boar, has solved the Changbai Mountain wild boar and has been unfavorable for raising, the shortcoming slow, meat palatability difference of growing.

Concrete technical solution is as follows: select for use the Changbai Mountain wild boar as male parent, the Songliao black pig is as female parent, hybridize, the offspring who produces, through seed selection, cultivate the black pig in Changbai Mountain, deceive pig as male parent with the Changbai Mountain again, it is that traversed by is fixed that the Songliao black pig carries out natural breeding as female parent, cultivates the carnivorous pig of the supporting system of Ji Song.

Described breeding method may further comprise the steps:

(1) according to respectively being the performance division of labor and the status in supporting breeding of method, selected boar is carried out strictness identify, select, carry out breeding group and build as follows: the black pig scale in male parent paternal line (A) Changbai Mountain is 20 public 100 mothers, 10 blood lineages of boar, 40 blood lineages of sow, build appearance unanimity; Maternal maternal (B) cultivates strain Songliao black pig for local pig breed, and the core group scale reaches 30 public 300 mothers.

(2) seed selection measure: with modern genetics, thremmatology is theoretical direction, with supporting be that up-to-date theory is a guide, the technology path that adopts locking to combine, generation of 1.5 years generation intervals with incomplete locking subculture seed selection, the reserve boar ratio of selecting and remain is: boar A is 10: 1, and B is 5: 1; Sow A is 2: 1, and B is 3: 1.Adopt multiple characters animal model BLUP method that boar is carried out genetic evaluation, mainly choose seeds by multiple selection index.

To respectively being that reproductive performance is observed, performance measurement of reserve boar and fattening, butcher, meat quality determination and build appearance identify.

Check respectively to be a specific combining ability, confirmation seed selection progress, and reference when doing each systematic selection, also comprise respectively be idle sex pig kind with supporting system outside the general combining ability mensuration of other kinds (strain).

Good effect of the present invention is: male parent is selected the Changbai Mountain wild boar for use, have characteristics such as strong stress resistance, disease resistance are strong, crude feed tolerance, meat flavor uniqueness, female parent is selected the Songliao black pig for use, have characteristics such as reproduction rate height, disease resistance be strong, by traversed by fixedly the carnivorous pig of lucky loose supporting system cultivated of cultivating method have the two advantage, for consumers in general provide high-quality characteristic pork.The present invention simplifies production of hybrid seeds link, increases the benefit, and has reduced the breeding expense, is convenient to utilization and extention.

Embodiment:

By following examples the present invention is described for example further, and do not limit the present invention in any way, under the prerequisite that does not deviate from technical solution of the present invention, any change or change that those of ordinary skills that the present invention did are realized easily all will fall within the claim scope of the present invention.

Embodiment 1

Adopt two to be supporting hybridization, promptly establishing the Changbai Mountain wild boar is male parent paternal line (A) with Songliao black pig hybridized pig, and the Songliao black pig is maternal maternal (B), and promptly A * B two is supporting hybridization.

According to the rule of the paternal maternal division of labor of specialization, consider that in conjunction with combined factors such as proterties heritability, genetic correlation, hybrid vigour and selection intensities supporting owner selects proterties to be defined as 2 of grow-finish proterties: growth rate, the local flavor of meat; 1 of reproductive trait: litter size; The meat proterties: specifically divide the work as followsly, father (A) owner selects the thickness of backfat, takes into account growth rate, the combining ability test achievement, and seed selection becomes many lean meat and meat flavor to be well; Female (B) is because need kind of amount big, main separation litter size, adaptability, and seed selection becomes fecund system.

Be that seed selection improves specific combining ability between father and mother system, the performance of hybrid performance is included in the breeding system, making full use of the non additivity gene effect, do the general combining ability test when breeding, idle sex boar is fully used in new lines.

For obtaining maximum hybrid vigour, one will guarantee that this cording of father and mother has certain purity, promptly has certain inbreeding coefficient, and two will make father and mother keep purity, affinity-less relation between being.

For keeping the regularity of hybridization market pig, eliminate certain proterties and give prominence to and the low especially individuality of other proterties; Father and mother adhere to that build appearance evaluation comprises wean, age in June and adult phase, require that physique is solid, three-dimensional-structure is well-balanced, coordinate, and be standard with desirable premium muscle type market pig build, employing body chi proterties combined method is identified.

Embodiment 2

Set up population:

According to respectively being the performance division of labor and the status in supporting breeding of method, selected boar being carried out strictness identify, select to educate.The black pig scale in male parent paternal line (A) Changbai Mountain is 20 public 100 mothers, 10 blood lineages of boar, 40 blood lineages of sow, build appearance unanimity; Maternal maternal (B) cultivates strain Songliao black pig for local pig breed, and the core group scale reaches 30 public 300 mothers.

The seed selection measure:

1. technology path: with modern genetics, thremmatology is theoretical direction, with supporting be that up-to-date theory is a guide, the technology path that adopts locking to combine, generation of 1.5 years generation intervals with incomplete locking subculture seed selection, the reserve boar ratio of selecting and remain is: boar A is 10: 1, and B is 5: 1; Sow A is 2: 1, and B is 3: 1.Adopt multiple characters animal model BLUP method that boar is carried out genetic evaluation, mainly choose seeds by multiple selection index.

2. performance measurement; Comprise respectively being that reproductive performance is observed, performance measurement of reserve boar and fattening, butcher, meat quality determination and build appearance identify.

The build macroscopic features: whole body dorsal body setae ater, physique is solid, and structure is well-balanced,, head is of moderate size, and crect ear leans forward slightly, and back of the body waist is straight, and isometric during body drives, belly is sagging slightly, and the leg stern is more plentiful, and four limbs are sturdy solid, seven pairs of nipples.

Reproductive performance: early sexual maturity, feelings phase breeding conception rate 92%, 10.4 of first farrowing sow litter sizes, litter weight was 39.6 kilograms in 20 days, and weight of weaning litter was 100.1 kilograms in 50 days, 12.5 of multiparity number born of sow, the multiparity core group is 13.2,11.7 of the litter sizes of living, and weight of weaning litter was 123.5 kilograms in 50 days.

The grow-finish performance: growing and fattening pigs reach 90 kg body weight ages in days 180 days, average daily gain 600 grams, feedstuff-meat ratio 3.8: 1.

Carcass quality: carcass lean meat percentage is more than 57%, average 31.0 square centimeters of eye muscle area, and back leg ratio 29.1%, 2.98 centimetres of the triadic mean thickness of backfats, intramuscular fat content reaches more than 3.5%, and meat is good, and no PSE and DFD meat occur.

3. combining ability test: in order to check respectively is a specific combining ability, confirmation seed selection progress, and reference when doing each systematic selection, also comprise respectively be idle sex pig kind with supporting system outside the general combining ability mensuration of other kinds (strain).

Improve by the seed selection to the Changbai Mountain wild boar, the mensuration of performance measurement and cross performance is purificated and rejuvenated to the performance of Songliao black pig, cultivates one and contains Songliao black pig 75%, the lucky loose supporting system of wild boar 25%.

Claims (1)

1. one kind is that male parent Songliao black pig is maternal method of cultivating carnivorous pig with the Changbai Mountain wild boar, may further comprise the steps:

Set up population:

Selecting the black pig scale in the paternal A of male parent Changbai Mountain is 20 public 100 mothers, 10 blood lineages of boar, 40 blood lineages of sow, build appearance unanimity; Maternal maternal B is that local pig breed is cultivated strain Songliao black pig, and the core group scale reaches 30 public 300 mothers;

The seed selection measure:

1. technology path: adopt the subculture seed selection from generation to generation of 1.5 years generation intervals, the reserve boar ratio of selecting and remain is: boar A is 10: 1, and B is 5: 1; Sow A is 2: 1, and B is 3: 1; Adopt multiple characters animal model BLUP method that boar is carried out genetic evaluation, mainly choose seeds by multiple selection index,

2. performance measurement;

The build macroscopic features: whole body dorsal body setae ater, physique is solid, and structure is well-balanced,, head is of moderate size, and crect ear leans forward slightly, and back of the body waist is straight, and isometric during body drives, belly is sagging slightly, and the leg stern is more plentiful, and four limbs are sturdy solid, seven pairs of nipples;

Reproductive performance: early sexual maturity, feelings phase breeding conception rate 92%, 10.4 of first farrowing sow litter sizes, litter weight was 39.6 kilograms in 20 days, and weight of weaning litter was 100.1 kilograms in 50 days, 12.5 of multiparity number born of sow, the multiparity core group is 13.2,11.7 of the litter sizes of living, and weight of weaning litter was 123.5 kilograms in 50 days;

The grow-finish performance: growing and fattening pigs reach 90 kg body weight ages in days 180 days, average daily gain 600 grams, feedstuff-meat ratio 3.8: 1;

Carcass quality: carcass lean meat percentage is more than 57%, average 31.0 square centimeters of eye muscle area, and back leg ratio 29.1%, 2.98 centimetres of the triadic mean thickness of backfats, intramuscular fat content reaches more than 3.5%, and meat is good, and no PSE and DFD meat occur;

Improve by the seed selection to the Changbai Mountain wild boar, the mensuration of performance measurement and cross performance is purificated and rejuvenated to the performance of Songliao black pig, cultivates one and contains Songliao black pig 75%, the lucky loose supporting system of wild boar 25%.