| 
      (a)DNA level used in all protocols was constant (93.0 ng/50μl reaction mix)
        | Gene(a) | Primers  | Thermal conditions | (No. of cycles) |  
        | Sequence | Concentration (pmoles/50µl) of    PCR mix |  
        | GH | GH1F: CTCTGCCTGCCCTGGACTGH1R:GGAGGAGCAGAAGGCAACC
 GH2F:(TCAGCAGAGTCTTCACCAAC
 GH2R:(CAACAACGCCATCCTCAC
 | 20 | 94°C/15    min, 95°C/30 s, 59°C/30 s, 72°C/45 s, 72°C/7 min | 35 |  
        | CSN1S1 | Casein S1F: 5’TTCTAAAAGTCTCAGAGGCAG3’
 S1R 5’GGGTTGATAGCCTTGTATGT3’
 | 50 | 97°C/2    min, 60°C/45 s, 72°C/2.5 min, 94°C/45 s, 60°C/45 s,72°C/2.5 min, 72°C/10 min | 30 |  
        | MHC    Class II DRB | DRB    1: TATCCCGTCTCTGCAGCACATTTCDRB2: TCGCCGCTGCACACTGAAACTCTC
 | 20 | 94°C/1 min,    60°C/1.5 min, 72°C/2 min | 30 |  
        | PrP | PrP    G1: 5’ATGGTGAAAAGCCACATAGGCAGT3)PrP G2: 5’CTATCCTACTATGAGAAAAATGAG3’
 | 20 | 95°C/5 min, 96°C/2 min, 60°C/2 min,    72°C/3 min, 72°C/7 min | 40 |  |