1. Ovine Progressive Pneumonia Reid Redden, Sheep Specialist Rick Schmidt, Oliver County Extension

2. OPP

4. Slides courtesy of Leymaster (MARC)

10. OPP Grant Farmer/Rancher Grant from NCR-SARE –Test 12 different farms 50 Animals, preferably oldest Serology and Haplotype –733 samples –8 Breeds ( > 2 flocks per breed) Columbia, Dorset, Hampshire, Katahdin, Montadale, Polypay, Rambouillet, Suffolk

11. Results

12. Flock Infection Rate –66% (8 of 12) Range of Infection Status –0 to 76% Infected Rate –28%

13. Results Severity of Infection Rate 0% 4 flocks 0-10% 3 flocks 10-25%3 flocks >25%2 flocks

14. Results Breeds –Columbia – 48% positive (n = 48) –Dorset – 48% positive (n = 125) –Hampshire – 57% positive (n = 50) –Katahdin – 26% positive (n = 92) –Montadale – 0% positive (n = 15) –Polypay – 42% positive (n = 83) –Rambouillet – 10% positive (n = 207) –Suffolk – 15% positive (n = 90)

15. Results Age –123% (n = 133) –227% (n = 144) –333% (n = 150) –427% (n = 78) –538% (n = 73) –621% (n = 74) –741% (n = 37) –830% (n = 27)

16. Results TMEM 154 –1,123% positive (n = 501) –1,243% positive (n = 84) –1,338% positive (n = 60) –1,449% positive (n = 47) –2,266% positive (n = 3) –2,325% positive (n = 4) –2,460% positive (n = 15) –3,30% positive (n = 5) –3,40% positive (n = 1) –4,450% positive (n = 4)

17. Results TMEM 154 (infected flocks only) –1,131% positive (n = 378) –1,255% positive (n = 65) –1,358% positive (n = 40) –1,453% positive (n = 43) –2,266% positive (n = 3) –2,350% positive (n = 2) –2,464% positive (n = 14) –3,40% positive (n = 1) –4,450% positive (n = 4)

18. Results Columbia (n = 46) 10.99 40.01 Dorset (n = 125) 10.88 20.10 30.02 Hampshire (n = 50) 10.53 20.16 40.31 Katahdin – (n = 92) 10.59 20.13 30.17 40.09 90.02 Montadale (n = 15) 10.97 30.03 Polypay (n = 83) 10.86 20.04 30.08 40.02 Rambouillet – (n = 207) 10.92 20.01 30.06 40.002 100.01 Suffolk – (n = 90) 10.76 20.16 30.01 40.08

19. Implications OPP is common in ND flocks –Only problematic in a few flocks –New knowledge of transmission TMEM 154 –Appears to provide some protection –Breed differences ND flocks should have an OPP flock plan