poultry_industry

Shira Aeroponics Fogging Technologies

"Shira's fog technology - transparently obvious benefits"

The Poultry Industry uses Shira foggers for humidity control and disinfectant application

In the US, the University of Georgia has conducted controlled experiments on the application of Hydrogen Peroxide (H2O2) on chicks using Shira’s foggers during the hatching period in the incubator. The OSHA authority restricted the further use of formaldehyde in the USA. These experiments concluded that the Shira foggers using Hydrogen Peroxide was the most effective method of reducing bacteria levels. In fact, the bacteria levels were not detectable demonstrating the complete coverage attained by dispensing chemicals using Shira foggers.

Bailey, N.A. Cox, and M.E. Berrang USDA, ARS, RRC, P.O.Box 5677 Athens, GA 30613; and B.J. Buhr, Dept. of Poultry Science, The University of Georgia, Athens, GA 30613-2772 (submitted by Dr. Joseph Mauldin)

Aerosolized H2O2, gaseous ozone, and UV-light were tested as sanitizers for reduction of total bacteria, Enterobacteriaceae, and Salmonella in hatching cabinets. After 18 days of incubation eggs containing viable broiler embryos were transferred into 4 NatureForm NMC-2000 hatchers. About 1,000 cells of nalidixic acid resistant S. typhimurium were placed inside the egg on the air-cell membrane of 5 eggs per cabinet. All treatments were applied for the duration of the hatch period and included aerosolizing 2.5% H2O2 for 30 sec every 5 min or continuous generation of ozone gas at .2 ppm into the air intake of the cabinet, or continuous exposure to UV-light (254 nm) in the cabinet. On the day of hatch, total bacteria, Enterobacteriaceae counts were reduced from > 1,000 cells to about 300 cells with the ozone and UV-light, and to 10 cells with the H2O2 on plates exposed to cabinet exhaust air for 2 min. Salmonella was reduced from 200 cells in the control to 10 in the ozone and UV-light, and none were detected with the treatment. Seven days posthatch 50 to 70% of the control, ozone, and UV-light treated chicks were Salmonella positive. No Salmonella were detected in the H2O2 treated group.

Microbial data - Salmonella loaded hatcher

	Day	BHI	VRBG	BGS+NAL	SHELLS	7-DAY CHICKS
Control	20	5.5	ND
	21	19.5	12/5	10
	22	TNTC	TNTC	278	12+/12	7+/10

Ozone	20	1	ND	ND
	21	49	16.5	0.5
	22	119	19.5	2.5	12+/12	4+/10

Hydrogen Peroxide	20	8.5	ND	ND
	21	2.5	ND	ND
	22	5	ND	ND	8+/12	0+/10

UV-Light	20	ND	ND	ND
	21	7	30	2
	22	230	103	7	11+/12	0+/10

ND = None Detected

TNTC = To Numerous To Count

Type of culture plates

BHI = Brain Heart infusion - total aerobic plate count, 2 min exposure over exhaust

VRBG = Violet Red Bile Glucose - total enterobcteriaceae (Salmonella), 2 min exposure over exhaust

BGS+NAL = Brilliant Green Sulfur + Nalidix Acid - to detect marker Salmonella

Shell -> BGS + NAL - to detect marker Sakmonella

Shells were collected above, with, and below Salmonella eggs

7 Days old chick in testing -> BGS+NAL - to detect marker Salmonella

Chick taken for top hatching basket

5 eggs per hatcher were injected with 1.8 x 10³ marker Salmonella

Salmonella eggs were placed in the middle layer of mass hatching baskets

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