1, domestic pigs are also called: wild boar, domestic pigs.
2. Xiang pig is also called mini pig.
Second, the morphological characteristics are different.
1, domestic pigs are big and plump. Lean pigs are taller and longer than local pig breeds, with compact whole body structure, smooth and wrinkle-free skin, less subcutaneous fat, muscular, slender body, lighter forequarters, plump hindquarters, longer limbs and stronger strength.
The neck, shoulders and chest are wide and round, the trunk is wide and round, and the back is slightly arched. The abdomen hangs down, and the lower edge of the chest and abdomen is in a straight line. Hips are well developed, long and flat, and the whole hind leg above hock joint is spherical. From front to back, the top view and side view are wedge-shaped with small front and large back.
2, the fragrant pig is short. The head is straight, the forehead wrinkles are shallow and few, and the ears are small and thin, slightly flat or slightly drooping to both sides. The back and waist are wide and slightly concave, the abdomen is big and round and touches the ground, and the hindquarters are fuller. The limbs are short and thin, and the hind limbs lie more. Thin skin and fine meat. The coat color is mostly all black, but it also has the characteristics of "six whites" or incomplete "six whites". According to the investigation of 206 pigs, all black accounts for 98.44%.
Third, the number of babies is different.
1, the estrus of domestic pigs is about 172 days, usually at the age of 8 months, and the first breeding can be carried out when the weight exceeds 125 kg, and it is appropriate to start breeding at the age of 10 months. The average litter size of multiparous sows (652 litters) is 12.5, and the live litter size is 10. The average nest weight of 20 days old is 46.44 kg.
2. Small litter size of Xiang pigs. According to the investigation of 1977 in Congjiang and Sandu counties, the average litter size of sows is 4.5 for the first litter (239 litters), 5.0 for the second litter (178 litters) and 5.7 for the third litter and above (386 litters).
Baidu encyclopedia-domestic pig
Baidu Encyclopedia-Zhu Xiang