Iowa Administrative Code › Agency 21 - Agriculture and Land Stewardship Department › Chapter 64 - Infectious and Contagious Diseases › Rule 21-64.191 - Flock Plan

Current through Register Vol. 47, No. 3, July 24, 2024
(1) The flock
			 owner, the owner's veterinarian, if requested, and the epidemiologist shafl
			 develop a plan for eradicating LPAI in each affected flock. The plan must be
			 designed to reduce and then eliminate LPAI from the flock, to prevent spread of
			 the disease to other flocks, and to prevent reintroduction of LPAI after the
			 flock beCornes disease-free. The flock plan must be developed and signed within
			 15 days after the determination that the flock is affected.
(2) The flock plan will include, but is not
			 limited to, the following areas:
a. Movement
			 of vehicles, equipment, and people on and off the premises.
b. Cleaning and disinfection of vehicles
			 entering and leaving the premises.
c. Proper elimination of daily mortality
			 through Cornposting on premises, incineration on premises, or other approved
			 method.
d. Biosecurity procedures
			 for people entering or leaving the facility.
e. Controlled marketing.
(1) No poultry may be removed from the
			 premises for a minimum of 21 days after the last detection of active avian
			 influenza virus on the premises. Immune flocks that have recovered from avian
			 influenza infection may remain on the premises for the remainder of their
			 scheduled life span.
(2) After 21
			 days, poultry marketing will only be allowed for delivery to slaughter
			 establishments at the close of business for the week.
(3) Routes used to transport poultry to
			 slaughter must avoid other poultry operations.
(4) Trucks used to transport poultry from an
			 infected premises must be cleaned and disinfected and may not enter another
			 poultry facility for at least 24 hours.
(5) Eggs which are washed, sanitized, and
			 packed in new materials may be moved into normal marketing channels, but trucks
			 hauling these eggs must not visit another premises between the production site
			 and the market. Egg handling materials must be destroyed at the plant or
			 cleaned, sanitized, and returned to the premises of origin without contacting
			 materials going to other premises. Disposable egg flats or sanitized, plastic
			 flats must be used to transport eggs.
(6) Eggs that are sold as "nest run" and are
			 not washed and sanitized must be moved directly to only an "off-line" breaking
			 operation for pasteurization and used for breaking only. The egg handling
			 materials must be handled as described in (5) above.
(7) Liquid eggs from layer flocks may
			 continue to move from breaking operations directly to pasteurization plants
			 provided that the transport vehicles are cleaned and disinfected before
			 entering and leaving the premises.
f. Vaccination. Avian influenza vaccine will
			 be considered for use only if allowed by the state veterinarian and USDA APHIS.
(1) Killed H5 or H7 vaccine may be used to
			 immunize all noninfected poultry remaining on the premises. Laying-flock
			 replacement poultry should be vaccinated at least two weeks before entering the
			 laying operation.
(2) Twenty
			 sentinel (nonvaccinated) poultry will be kept in each vaccinated flock, and all
			 20 will be tested for avian influenza every 30 days.
(3) Avian influenza virus will be considered
			 to be no longer active when all sentinel poultry are serologically negative on
			 two consecutive tests conducted at least 14 days apart and when cloacal swabs
			 from each of the 20 sentinel poultry are negative by virus isolation
			 testing.
(4) Positive sentinel
			 poultry must be euthanized and replaced by negative poultry after 14
			 days.
(5) Slaughter withdrawal
			 times must be followed in the marketing of poultry.
g. Housing facilities and manure. Before a
			 new flock is placed in an infected house, manure must be removed and the
			 housing facilities must be cleaned and disinfected. Manure shall not be removed
			 from the premises for a minimum of 30 days after the last active detection of
			 avian influenza virus in a house. Manure from infected housing facilities must
			 be carried in covered conveyances, and transportation routes must avoid other
			 poultry operations. Manure handling and disposal will be at the direction of
			 the state veterinarian.
h. Wild
			 bird, insect, and rodent control. Wild bird, insect, and rodent control
			 programs must be implemented on the premises before a facility is repopulated
			 with poultry. Rodenticide must be set out before feed or birds are removed from
			 the premises.