Eric Gingerich DVM dip. ACPV Diamond V San Diego CA 17 October 2017

Transcription

1 Eric Gingerich DVM dip. ACPV Diamond V San Diego CA 17 October 2017

2 AVEP Pullet and Layer Health Survey Emerging and Re-emerging Diseases AVEP Survey on Veterinary Related Issues Layer Industry Economics Summary

3 Conducted in early October 2017 Veterinarians from 15 states returned survey 25 members of the total of responded

4 Prevalence 0 = not seen 1 = seen in a few flocks 2 = commonly observed 3 = seen in a majority of flocks Importance 0 = no importance to flock health or profitability 1 = some importance 2 = moderate importance 3 = very high importance

5 Rank Caged Pullets Cagefree Pullets Prevalence Importance Prevalence Importance 1 Coccidiosis/1.68 Cocci/2.14 Cocci/1.71 Cocci/ E. Coli / 1.22 Vaccinal ILT/1.68 Piling/1.57 Piling/ Necrotic enteritis/1.09 E. coli / 1.64 NE & E. coli/1.19 vilt/1.71

6 Rank Caged Layers Cagefree Layers Prevalence Importance Prevalence Importance 1 E. coli / 1.91 E. coli / 2.17 Cannibalism / 2.19 E. coli / M. synoviae / 1.65 Mg / 1.87 E. coli / 2.10 Cannibalism / M. gallisepticum / 1.48 IBV & Cannibalism / 1.65 Ascarids / 1.67 vilt & Mg / 1.86

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8 Gallibacterium anatis septicemia Variant strain IBV Ulcerative dermatitis with secondary E. coli Spotty Liver Disease (Campylobacter hepaticus) Pasteurella multocida (fowl cholera)

9 Seen mostly in the southeast Affect layers of all ages and strains Typical septicemic disease Acute death Petechial hemorrhages Easily confused with E. coli infection Mortality can be high, over 1% per week Oviduct infections also seen Liver lesions in about % of birds miliary hepatic nodules

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11 Two syndromes Early exposure (first two weeks) False layers oviduct nonfunctional but ovary is Low peaks and poor overall performance During lay exposure Drop in production Poor shells Seen in Northeast US, Southwest US, and Ontario Canada

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15 A problem in western OH area since 2014 High mortality due to secondary E. coli infection from a variable-sized open ulcer on the back Some flocks 50% in one cycle Ruled out so far Rodents Insects Chemical irritants Wounding

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18 A serious problem in Australia Seen in a few free-range flocks in the US in summer 1 to 2 % mortality per week Loss of egg production of 5 to 10%

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21 Fowl cholera being increasingly seen in cage free flocks with outdoor access Vaccinations of pullets with killed and live vaccines increasing Up to 5% per day mortality seen

22 Rating system 0 = little continued importance, concern, or effort to prevent 1 = some importance 2 = moderate importance 3 = very high importance

23 Disease or Issue Avian Influenza Lack of approved, effective treatments/antibiotics Lack of effective vaccines Salmonella enteritidis (SE) FDA Egg Safety Rule Salmonella heidelberg (SH) incorporation into FDA Egg

24 Disease or Issue Welfare issues overall Beak Trimming Disposal of male chicks On-farm euthanasia of spent fowl Molting of layers Move to cagefree N/A N/A N/A

25 Extremely Profitable 2015 Extreme losses in 2016 Continued losses in 2017 Too many layers Cagefree houses built without replacing caged production Some egg product users have failed to go back to eggs after replacing them with plant based ingredients during AI in 2015

26 Source: Egg Industry Center

27 311 million layers in Aug 17 vs. 308 million in Aug 16 Top 6 states 1. Iowa 53.5 million 2. Indiana Ohio Pennsylvania Texas California 11.4

28 Source: Egg Industry Center

29 Layer health of the US flock is quite good Oversight by veterinarians from industry, diagnostic labs, consultants, academia, government Flock supervision by professional service technicians Continued high quality supply of vaccines Allied industry working to supply non-antibiotic solutions for health High quality nutrition provided by professional nutritionists Use of good biosecurity plans Housing a majority of layers in cages Continued surveillance programs for ND and AI

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31 Eric Gingerich DVM Diamond V Phone: (317) egingerich@diamondv.com