At present, the pig breeds of Heyuan Township are dominated by Duben sows, about this sow, and some local breeds. The main problems are: mixed blood system, unclear algebra, reduced production performance, low genetic ability, breeding boars. The frequency of use is too high, the promotion of swine artificial insemination technology is insufficient, and the genetic effects of breeding sows are neglected. Combining with the actual situation in the township, animal husbandry and veterinary technicians introduced the production status of the following breeds of pigs to the farmers, and recommended the introduction of two breeds of pigs of Yorkshire and Duroc.
1. Yorkshire Performance: 10.75 live pigs, 61% lean meat, 2.28:1 feed weight ratio, 30-100kg daily weight gain 982g. Benefits: Fast weight gain, high feed conversion rate, good reproductive performance, meat quality Good use: The female parent or the first male york pig is one of the preferred varieties of the Heyuan pig breed that was improved at that time, and its improved offspring performance is ideal.
2. Landrace performance: 11.33 live pigs, lean meat ratio 61.2%, total feed weight ratio 2.38:1, 30 -100kg daily gain 950g Advantages: Fast growth, high feed conversion rate, high lean meat yield, More than one, lactation performance is good.
Disadvantages: weak physical, poor resistance to use: first male or female parent
3. Duroc performance: 9.93 live pigs, 59.8% lean meat ratio, 2.37:1,30-100kg daily weight gain, 936g weight gain throughout the whole process: Advantages: Fast growth, high feed conversion rate, strong resistance to adverse effects : Fewer litter size and poor lactating power Use: The father or terminal male parent must be fitted with Duroc to form a three-way hybrid. DLY three-way crossbreeding is currently an ideal hybrid combination, and it is also a hybrid combination of the main pig breeding in Heyuan Township.
4. Hampshire performance: 10 live pigs, 61.5% lean meat, weight ratio 2.53:1,30 -100kg, daily weight gain 845 g. Advantages: High lean meat ratio, large ocular muscle area, carcass Disadvantages of good quality: Slow growth, low feed conversion rate,
Uses: The first generation of the father
5. Pietrain pig performance: The number of live pigs was 9.7, and the lean percentage was 66.9%.
Features: After 90kg weight gain slows down, consumes more material, prone to PSE gray hair, black spots, mixed with red hair,
Uses: Terminal father
1. Yorkshire Performance: 10.75 live pigs, 61% lean meat, 2.28:1 feed weight ratio, 30-100kg daily weight gain 982g. Benefits: Fast weight gain, high feed conversion rate, good reproductive performance, meat quality Good use: The female parent or the first male york pig is one of the preferred varieties of the Heyuan pig breed that was improved at that time, and its improved offspring performance is ideal.
2. Landrace performance: 11.33 live pigs, lean meat ratio 61.2%, total feed weight ratio 2.38:1, 30 -100kg daily gain 950g Advantages: Fast growth, high feed conversion rate, high lean meat yield, More than one, lactation performance is good.
Disadvantages: weak physical, poor resistance to use: first male or female parent
3. Duroc performance: 9.93 live pigs, 59.8% lean meat ratio, 2.37:1,30-100kg daily weight gain, 936g weight gain throughout the whole process: Advantages: Fast growth, high feed conversion rate, strong resistance to adverse effects : Fewer litter size and poor lactating power Use: The father or terminal male parent must be fitted with Duroc to form a three-way hybrid. DLY three-way crossbreeding is currently an ideal hybrid combination, and it is also a hybrid combination of the main pig breeding in Heyuan Township.
4. Hampshire performance: 10 live pigs, 61.5% lean meat, weight ratio 2.53:1,30 -100kg, daily weight gain 845 g. Advantages: High lean meat ratio, large ocular muscle area, carcass Disadvantages of good quality: Slow growth, low feed conversion rate,
Uses: The first generation of the father
5. Pietrain pig performance: The number of live pigs was 9.7, and the lean percentage was 66.9%.
Features: After 90kg weight gain slows down, consumes more material, prone to PSE gray hair, black spots, mixed with red hair,
Uses: Terminal father
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