EPD: Sheep Latest 2023 Already Passed

EPD: Sheep Latest 2023 Already Passed EPD Expected Progeny Differences -used to compare in flocks for sheep 60 Day Weaning Weight -predicts weaning growth of animal -expressed in pounds 60 Day Weaning Weight Example: Ram A has 60 day wt EPD of 0.2 lbs. Ram B has 60 day wt EPD of 1.2 lbs. Ram B should sire lambs that are 1 pound heavier at 60 days of age (weaning) 120 Day Weight -predicts post weaning of animal. -in pounds 120 Day Weight Example Animal A has 120 day weight EPD of 0.5 Animal B has 120 day weight EPD of 2.5 Animal B's lambs should weigh 2 lbs more at 120 days of age versus those from Animal A Maternal Milk -predicts milking ability of daughters. -expressed in pounds of lambs weaned due to milk received. Maternal Milk Example: Animal A has milk EPD of 0.1 Animal B has milk EPD of 1.1 Animal B's daughters will wean lambs that are 1 lb. heavier than lambs weaned by animal A's daughters due to differences in milk Maternal Milk + Growth -predicts genetic merit of daughters for weaning weight. -growth genetics and milk production= weaning weight to lambs. -expressed in pounds of lambs weaned by daughters. Maternal Milk + Growth Example: Animal A has Milk + Growth EPD of 0.2 Animal B has Milk + Growth EPD of 1.2 Animal B's daughters should wean lambs that are 1 lb. heavier due to their mother's milk production and growth genetics Percent Lamb Crop -predicts genetic potential for prolificacy (how many babies at birth). -expressed as lambs born/per 100 ewes. Percent Lamb Crop Example: Animal A has % lamb crop EPD of 10 Animal B has % lamb crop EPD of 5 A flock of 100 ewes comprised of Animal A's daughters would have 5 more lambs born than the same size flock deriving from Animal B Scrapie disease of central nervous system like mad cow disease. -"codon type" -Q recessive: undesirable -R dominant: desirable -QQ=Scrapie -RR= Free of disease -QR=carrier Spider Disease recessive genetic disorder concerning bones. -N= dominant gene -S= recessive gene NN= free of disease NS= Carrier of disease SS= Spider Disease (won't live for breeding).