Presentation is loading. Please wait.

Presentation is loading. Please wait.

2003 Melvin Tooker, Paul VanRaden, Ashley Sanders, and George Wiggans Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville,

Similar presentations


Presentation on theme: "2003 Melvin Tooker, Paul VanRaden, Ashley Sanders, and George Wiggans Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville,"— Presentation transcript:

1 2003 Melvin Tooker, Paul VanRaden, Ashley Sanders, and George Wiggans Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD mtooker@aipl.arsusda.gov Update on Evaluations for Daughter Pregnancy Rate

2 NAAB-DSEC 2003 (2) Melvin Tooker 2003 Average Breed Effects Across Regions and Time by Calving Month

3 NAAB-DSEC 2003 (3) Melvin Tooker 2003 Conversion to Bull Base (1995) BreedAdjustment Ayrshire - 0.1 Brown Swiss + 0.6 Guernsey - 0.3 Holstein + 0.4 Jersey + 0.2 Milk Shorthorn + 0.5

4 NAAB-DSEC 2003 (4) Melvin Tooker 2003 Parity Pre-Adjustments Initiated May 2003 ParityHolsteinJersey 1 st 0 0 2 nd - 4.1 - 3.7 3 rd - 7.1 - 5.6 4 th - 11.7 - 9.4 5 th - 16.7 - 13.4

5 NAAB-DSEC 2003 (5) Melvin Tooker 2003 Pregnancy Rate Evaluation  Lactations 1-5 beginning with 1960  Data sources Reported DO confirmed with next calving Reported DO if no next calving Calving interval – 280 days if no reported DO Assigned DO = 250 if sold for infertility  Pregnancy verification codes used to allow earlier use of information

6 NAAB-DSEC 2003 (6) Melvin Tooker 2003 AYBSGUHOJEMS Breeding date verified by next calving date 555448576453 Breeding date disagrees with next calving date 6 8 8 5 5 8 Breeding date but no next calving date 161520191716 Next calving date, but no breeding reported 7 9 8 6 611 Cows sold for reproductive problems 6 5 5 5 3 4 No information for fertility 10 911 8 5 8 Sources of Fertility Data 1998-1999

7 NAAB-DSEC 2003 (7) Melvin Tooker 2003 Future Directions  Pregnancy rate will be included in Net Merit.  Fertility records will be used earlier in lactation.  DPR can be used in multi-trait PL.  Fertility database will be improved.

8 NAAB-DSEC 2003 (8) Melvin Tooker 2003 Format 5 - Reproductive Records  Fixed segment identical to format 4  Animal ID, sire ID, dam ID, X-ref ID  Animal herd code information  20 reproductive segments: Date of event, code for actual or estimated date Includes many events, service sire ID

9 NAAB-DSEC 2003 (9) Melvin Tooker 2003 Format 5 - Reproductive Event Codes H = Observed in estrus (heat) but not inseminated S = Synchronized estrus event (injection or other methods) A = Artificial insemination N = Natural service breeding E = Embryo donation

10 NAAB-DSEC 2003 (10) Melvin Tooker 2003 Format 5 - Reproductive Event Codes Continued I = Embryo implantation P = Confirmed pregnant O = Confirmed not pregnant (open) X = Cow given a “do not breed” designation D = Delete event(s) for this “date of event”

11 NAAB-DSEC 2003 (11) Melvin Tooker 2003 Format 5 in the Future:  Separate estrus expression and conception rate (female fertility)  Service sire fertility (male fertility)  Keep track of ALL service sires, number and type of services, not just the most recent


Download ppt "2003 Melvin Tooker, Paul VanRaden, Ashley Sanders, and George Wiggans Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville,"

Similar presentations


Ads by Google