animal science final Flashcards
(141 cards)
in what year was the electric candle invented?
1909
In what year was the Newcastle disease breakout in LA?
1971
Which state has the most poultry ?
Iowa
Which country is number one for its poultry numbers?
US
Class for avian?
Aves
Egg breeds?
Leghorn, Ancona, Minorca
How many eggs are classified for a ‘good laying hen’ ?
20 dozen in 1st year
meat breeds
Orpington, Cornish, Australorp
Dual Purpose Breeds
New Hampshire, Plymouth Rock, Rhode Island Red
Bantams
1/4 or less the size of large fowl, seabrights and silkies
Leghorns
-noisy, like to move around and forage, capable of flight and often roost in trees
-240-250 eggs/year
-most numerous breed in US/most common
Araucana
-blue, greenish eggs
-rumpless
-no tail
Ameracauna
-related to araucana (difference is they have a tail)
-muffs and beards
Plymouth Rocks
-most popular bird until WWII
-good general farm chicken
-hardy (can survive low and high temps), docile, good mothers
-meat and egg
-brown egg
Rhode Island Reds
-Originated in Rhode Island
-best egg layers of dual purpose breeds
-brown eggs
New Hampshire
-competitive and aggressive
-plump carcass - used as either broiler or roaster
Cornish
-developed as ultimate meat bird
-wide compact bodies -> poor fertility
-wide muscular breast
-short legs
Ross
-industry standard for broiler growth rate, feed conversion
Capon
castrated male under 8 months
Stag
male chicken under 10 months
Chicken Vital Signs
-body temp 104 - 109 F
-300 beats/minute at rest
Calcium
-eggshells made of calcium carbonate
-oyster shells
minimum living requirements:
-good drainage (hill)
-heated or insulated in cold weather (prevents combs and wattles from freezing)
-screened opennings (ventilation)
-electricity (layers require 14 hours of light)
design requirements:
-open shed (free-range birds)
-semi-closed (more protection)
-enclosed houses (light, temperature, and ventilation)