Livestock Exam 2014

Adapting the behavior of animals to fit the need of humans is called:

• training
• breeding
• domestication
• culling

American breeds of swine originate 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(energy efficiency) and converting crude protein in feed to edible protein (protein efficiency) meat?

• Cattle 
• goats
• sheep
• 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 
• Progesterone 
• Testosterone
• Melengestrol acetate

The average length of gestation for goats is:

• 114 days
• 148 days
• 151 days
• 201 days

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

• Cattle 
• Swine
• Sheep
• Goats