Precision Livestock Farming : Student e-Course - To test your knowledge and obtain advice to follow this unit, go there....

What is the part of the feed cost in the global production cost in swine production ?

Are stereotyped behaviors an expression of uneasiness ?

	True
	False

Stereotypical behaviors can be observed in situations of discomfort such as: cannibalism, prostration ...

Which is the hormone associated with chronic stress in pigs ?

Cortisol is a hormone synthesized by the adrenal glands as a response to stress.

Which are the milk quality criteria?

What is the average amount of milk produced by a Holstein cow?

Which are the two compounds responsible for boar taint in entire male pigs?

Which species exhibits lactation anoestrus ?

Among the 4 species, only the sow has lactation anoestrus. It corresponds to an absence of oestral cycle during lactation.

Which are the behaviours expressed by a cow during the heat period ?

	Overlapping, vulva's sniffing, chin resting
	Overlapping acceptance, vulva's sniffing, chin resting
	Overlapping acceptance, sniffing acceptance, chin resting
	Decreased activity, overlapping acceptance, chin resting

During the heat period a cow accepts overlapping, sniffs vulva and rests her chin.