豬的品種ppt課件-文庫吧資料
2025-01-18 17:01本頁面
【正文】 te ph(acid pork) 3) High drip losses（ 滴水損失） 4) Improve average daily gain(ADG) 5) Increase carcass lean meat content 4. Hampshire 1) Origin : Belgium, imported in China in 1980’s 5. Pietrain 5. Pietrain 2) Breed characteristics medium size color white with black spots Ears erect 5. Pietrain 3) Benefits Known as a”Terminal breed” Extreme muscle and leanness Carcass oriented 4) Disbenifit high incidence of PSE meat PSE:pale, soft, exudative Muscled Breed: Pietran Originated in Belgium Many carry the Halothane gene (porcine stress syndrome, PSS) Extremely lean and heavy muscled 6. Berkshire Black with six white points Erect ears Noted for excellent marbling and loin muscle quality Early maturing Backfat Slow growth Some markets pay a premium for Berkshire breeding (Berkshire Gold Program). 7. Poland China Developed in Ohio, USA Black with six white points Drooping ears Large loineye areas Meaty carcasses Not very adaptable to intensive systems 8. Chester White White Semilop eared Durable breed Good for both indoor and outdoor systems Was a popular lard pig Large litters at birth and weaning Sows milk well, good mothering ability Known as a “Dual purpose Breed” 9. Spot Black and white spotted Drooping ears High growth rate Lacks adv. in meat quality Boars are aggressive 1. What breed is the mother breed? YORKSHIRE 2. What breed has really floppy ears? LANDRACE 3. What breed is considered the belted breed? HAMPSHIRE 4. What breed is all red? DUROC 1. Duroc 2. Landrace 3. Hamphire 4. Yorkshire Which hog as erect ears? . 1. Pigging 2. Sowing 3. Grunting 4. Farrowing What is it called when a sow gives birth? 1. Hogger
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