important. Reliabilities (REL) of 90 to 97% are based on daughter performance in addition to genomics and pedigree information. A. Please rank the four bulls below in order of priority for use for breeding in this herd. B. Which sire would rank highest in a fluid milk market? USDA Evaluations for Available Jersey Sires NM$ PTA PTA PTA PTA PTA PTA Sire PTA PTA FM$ REL Milk Fat Fat Protein Protein PL Number SCS DPR CM$ lbs lbs % lbs % 1 579 94 -128 40 0.24 12 0.09 2.76 2.0 5.3 493 663 2 660 93 1367 94 0.16 50 0.01 2.89 1.7 4.9 634 699 3 506 97 820 75 0.20 26 -0.02 3.00 0.8 5.3 478 532 4 495 90 1207 84 0.03 61 0.00 3.14 -1.0 2.2 482 532 SIRE SELECTION PROBLEM No. 2 The Holstein sires listed in the table below are available for a registered Holstein breeder in North Carolina who is interested in a balanced selection program for production and fitness traits. The milk market that he uses is primarily a fluid market with small premium on fat percentage and for lower somatic cell count scores (low SCS). Herd production has been good with a rolling average of 26,250 pounds with a 3.5% fat test. The farm is in a good financial state but the herd owners would like to see lower somatic cell scores (currently 3.4) to improve the quality of the milk. The
important. Reliabilities (REL) of 90 to 97% are based on daughter performance in addition to genomics and pedigree information. A. Please rank the four bulls below in order of priority for use for breeding in this herd. B. Which sire would rank highest in a fluid milk market? USDA Evaluations for Available Jersey Sires Sire Number NM$ FM$ CM$ REL PTA Milk lbs PTA Fat lbs PTA Fat % PTA Protein lbs PTA Protein % PTA SCS PTA DPR PTA PL 1 579 493 663 94 -128 40 0.24 12 0.09 2.76 2.0 5.3 2 660 634 699 93 1367 94 0.16 50 0.01 2.89 1.7 4.9 3 506 478 532 97 820 75 0.20 26 -0.02 3.00 0.8 5.3 4 495 482 532 90 1207 84 0.03 61 0.00 3.14 -1.0 2.2 SIRE SELECTION PROBLEM No. 2 The Holstein sires listed in the table below are available for a registered Holstein breeder in North Carolina who is interested in a balanced selection program for production and fitness traits. The milk market that he uses is primarily a fluid market with small premium on fat percentage and for lower somatic cell count scores (low SCS). Herd production has been good with a rolling average of 26,250 pounds with a 3.5% fat test. The farm is in a good financial state but the herd owners would like to see lower somatic cell scores (currently 3.4) to improve the quality of the milk. The
2013_dairy_%20BreedingProb.docx