2014-2015 STATE FFA POULTRY EVALUATION CDE

During egg development an ovum develops to the size of a yolk by collecting lipid particles from blood that was made by:

• genome

• liver

• ovary

• embryo

This is an important source of nutrition for the developing embryo

• blastodisc

• ovum

• liver

• yolk particles

Forty Eight (48) hours into incubation blood vessels coming from the embryo join with those coming from the area opaca. When this happens the opaca is then referred to as the:

• yolk sac

• blastoderm

• ovum

• none of the above

This is the term that is used to identify an incorrectly oriented embryo.

• somite

• ectoderm

• malposition

• blastoderm

Which of the following is NOT a common cause of birth defects in poultry

• Mating closely related birds

• Recessive gene traits in both parents

• Nutrient deficiencies in the diet of the hens

• Vaccines administered

Tags

NGSS.MS-LS1-5

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Which of the following is part of a good biosecurity program:

• isolation

• traffic control

• sanitation

• all of the above

In this type of transmission, infective agents are spread as aerosols and usually enter an animal through the respiratory tract:

• vector borne

• vehicle borne

• airborne

• direct transmission

This is an organism that lives on or in a host organism and gets its food from or at the expense of the host:

• protoza

• parasite

• virus

• mycoplasma

A ______________ is a carrier that transmits an infective agent from one host to another.

• pathogen

• microorganism

• host

• vector

A common vehicle borne transmitters of infectious agents in poultry is/are:

• feeders and drinkers

• insects

• rodents

• visitors