豬的品種ppt課件-資料下載頁(yè)
2025-01-12 17:01本頁(yè)面
【正文】 nd light muscled Fengjing Meishan 二花臉豬 嘉興黑豬 IV. Southwest 西南型 內(nèi)江豬 內(nèi)江豬 1. paratively large in size, with strong body constitution, thick skin (about .7 cm) and thick back fat ( to cm) 2. precocious（ 早熟的） the young boar may mount the female at as early an age as 2 months, and mature spermatozoa（ 精子） are found in the epididymis at 71 to 78 days gilts can be mated and bee pregnant as early as 90 days after birth 1. The average litter size is , and there are 7 pairs of teats. 榮昌豬 IV. Plateau Type 高原型 合作豬 1) Characteristics: long, coarse and dense bristles a slow growth rate low prolificacy, with a litter size of 4 to 7 5 pairs of teats 2) Benefits: be survival out on pasture year round in the Plateau region 合作豬 藏 豬 Knowledge Quiz 1. Name the breed that has a all red body with short ears flopping forward? 1 2. Name the breed that has a black body, six white points and erect ears? 1 Knowledge Quiz 3. Name the breed that has a black body, white belt and erect ears? 1 4. Name the two breeds known as dual purpose breeds? 1 2 Knowledge Quiz 5. Name the three breeds known as terminal sires? 1 2 3 6. Name the three breeds known for mothering? 1 2 3 Knowledge Quiz 7. Name the six types of breeds and their representative breeds in the China 1 2 3 4 5 6 Terms 1. Phenotype : The physical appearance/observable characteristics of an anism 2. Genotype :The geic constitution of an anism 3. Crossbreeding: 4. Marbling: is the intermingling (相互混雜 )of fat with lean in a muscle, and therefore, is intramuscular（ 肌內(nèi)脂肪） fat deposited around or between muscle fiber bundles Terms 5. Average daily gain(ADG) 6. RN gene： 7. PSS:
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