大圍子豬
Daweizi
產(chǎn)地(或分布):湖南省長沙市郊縣。
數(shù)量:1980年調(diào)查繁殖母豬1.3萬頭。
主要特性:體型中等,胸寬而深,背腰寬而微凹,腹大略下垂,體態(tài)前高后低,頭較清秀,耳中等大、下垂呈八字形,群眾稱為"蝴蝶耳",頭分長頭和短頭兩型,長頭型俗稱"閹雞頭",額較窄,皺紋較淺,嘴筒圓而較細;短頭型俗稱"壽字頭",額較寬,皺紋較深,嘴筒粗而稍扁,臉稍凹,被毛黑色,僅四肢下端為白色,稱"四腳踏雪"。成年體重:公豬107千克,母豬81千克。產(chǎn)仔數(shù):初產(chǎn)8.7頭,三胎以上12.3頭。肥育性能較好,農(nóng)村飼養(yǎng)日增重384克,屠宰率67%,臀腿比例26.5%,瘦肉率40.7%,瞟厚4.2厘米,眼肌面積22.2平方厘米。
Distribution:Suburbs of Changsha city and Nantuo area of Changsha County in Hainan province.
Population size:Approximately 13,OOO fertilized sows in 1980.
Major characteristics:The breed has moderate body conformation,with neat and trim head,medium-sized and drooping ears,which seem to be "八",so native people call it“butterfly ear".According to the size of the head,the breed is classified into long head type and short head type.The former is locally named “yanji head",with narrow forehead,superficial wrinkles,round and trim snout.While the latter is named "shouzi head",with wide forehead,deep wrinkles,rough and trim snout,lightly concaved face.Note the wide and deep chest,wide and lackarched back,and large and lightly drooping belly.The fore quarters are higher than the hindquarters.The coat color is black,with white hooves.Average weight of male adults is 106.9kg and females 80.9kg.The litter size is 8.7piglets in the first litter,and more than 12.3piglets in third and up-third parity.The milk yield is 31.4kg.The daily gain in the fattening period is 384g in the county.The average dressing percentage is 67%.The back fat thickness is 4.2 mother eye muscle area is 22.2cm2.The ham ratio is 26.5%.The lean meat percentage is 40.7%.
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