1. Sperm are sorted. “X” sperm are saved “Y” sperm and “undetermined” sperm are discarded

2. The sperm sorting displays on monitors

3. Post Thaw Purity Analysis

4.  Only experienced breeders!  ¼ cc semen straw  Use gloves and tweezers  35-37  C water temperature  In water for 30-45 seconds  Post-thaw thermal protection  Pre-warm A.I. gun  Semen into uterus within 5 minutes

5.  Use only in virgin heifers that have achieved >60% of mature weight by 14 months  Use of estrus synchronization and breeding to observed standing heat encouraged  Inseminate heifers 8-12 hours after observed estrus (AM/PM rule)  Use of timed A.I. discouraged

6.  Use primarily on first or second services in virgin heifers showing true standing heat  Semen thawing and handling areas should be warm and draft-free  Warm all semen handling equipment ( ¼ cc gun, sheaths, paper towels) prior to contacting straws  Only highly experienced technicians should use this product

7.  More milk produced per lactation.  Greater number of profitable lactations.  Higher lifetime production per cow.  Improved profitability of the farm.

8. * What genetics do work * Find the best bulls * For fertility * For production, health and type * Mate bulls to right cows * Utilize sexed and beef on dairy opportunities * Support farm fertility and management * Did our genetics work; validate!

9.  Low production cows, breed to beef semen  100 $ + more for cross bred calf  Choose calving ease breed: ANGUS  Fast growing calves:  High killing out percentage  High quality beef: marbling gives taste!!!!!

13. * What genetics do work * Find the best bulls * For fertility * For production, health and type * Mate bulls to right cows * Utilize sexed and beef opportunities * Support farm fertility and management * Did our genetics work; validate!

16. * What genetics do work * Find the best bulls * For fertility * For production, health and type * Mate bulls to right cows * Utilize sexed and beef opportunities * Support farm fertility and management * Did our genetics work; validate!

17. 1930s – 1,500 kg of milk/cow/year 1940s – 2,020 kg of milk/cow/year 遗传进展 Genetic Advancement 1950s - 2,500 kg of milk/cow/year 21 st Century - 11,606 kg of milk/cow/year

18. 美国遗传进展趋势 荷斯坦的产奶量 Genetic Trend in U.S.A. Milk Production - Holstein Phenotypic base 性状基数 = 11,638 kg -3500 -3000 -2500 -2000 -1500 -1000 -500 0 500 1000 19601970198019902000 出生年份 Birth Year Breeding Value 育种值 (kg) sires cows

19. 美国全国奶牛存栏和产量 U.S.A. National Dairy Herd Population and Milk Yield USDA Statistics