2014 Livestock

American breeds of swine originated from two wild stocks; European wild boar: sus scrofa and the east Indian pig: sus ________

• caballus

• vittatus

• camelus

• hicus

Which species of livestock is the most efficient in converting feed calorie intake and converting crude protein in feed to edible protein?

• Cattle

• Goats

• Lambs

• Swine

Which state ranks in the top ten for production of each of the species of cattle, swine, sheep, and goats?

• Texas

• California

• Montana

• Iowa

Which trait in beef cattle has the highest heritability estimate?

• Rib eye area

• Yearling weight

• Carcass grade

• Weaning weight

Which trait in swine has the lowest heritability estimate?

• Loin muscle area

• Birth weight

• Feed efficiency

• Back fat

Which of the following is an example of a homozygous (dominant) gene pair?

• PP

• Pp

• pP

• pp

In the reproductive system the testicles produce the hormone:

• Progesterone

• Estrogen

• Testosterone

• Melengestrol acetate

The average length of gestation for goats is:

• 114 days

• 148 days

• 151 days

• 201 days

Which species if livestock's onset of puberty has more to do with the time of year than the age in months?

• Cattle

• Swine

• Sheep

• Goats

The period of time which an animal is pregnant is called:

• Parturition

• Estrus

• Ovulation

• Gestation