ANSC 3010 EXAM 2 QUESTIONS WITH VERIFIED
ANSWERS
Most important protein supplement, all others are compared to this one - Answers -
Soybean Meal (SBM)
second most important protein supplement, and what is the toxin associated with it? -
Answers - Cottonseed meal (CSM)- associated with toxin gossypol
Which anti-nutritive factor is contained in Soybeans, and therefore they must be heated
to destroy this? - Answers - Trypsin inhibitor
Protein feed derived from slaughterhouse waste, is high in collagen, and is a concern
because of "mad cow" disease - Answers - Meat meal (meat and bone)
Protein source collected from the kill floor of slaughter plants, contains 80%+ CP, is high
in lysine but severely deficient in isoleucine. It has low digestibility due to the drying
process and therefore is a good source of rumen undegradable protein to ruminants -
Answers - Blood meal
What are the types of NPN discussed in class? - Answers - -->Urea- most common
source for ruminants
-->Biuret- 2 molecules of urea that have been condensed
--> Dried poultry waste
Mycotoxin in corn - Answers - toxins elaborated by molds (fungi) growing in or on
feedstuffs
Mycotoxins in peanuts - Answers - -->susceptible to aflatoxins
-->"hogging off": earlier practice in swine, produces soft pork due to unsaturated oil
consumption
-->don't feed fat peanuts for several weeks before slaughter
What is rumen undegradable protein, why would we feed it, what are some sources? -
Answers - -->insoluble proteins that escape/bypass the rumen
-->should feed it to growing/lactating ruminants to help meet the higher protein
requirements to supply AA, for adult ruminants for maintenance and for protecting
feedstuff protein from ruminal degradation
-->sources-?
What is RUP? - Answers - Rumen undegradable protein
, What are some methods to make RUP from degradable protein sources? - Answers - --
>Heat treatment
-->Coat protein w/fat
-->Treatment w/tannins
Why would we feed RUP? - Answers - Growing or lactating ruminants: higher protein
requirements to supply amino acids for muscle growth and milk production
Roughage feedstuffs are generally classified as feeds that contain greater than ___&
crude fiber and less than __% TDN - Answers - 17% CF
70% TDN
We spent a lot of time discussing forage quality. What are the 3 main factors we used to
assess forage quality? - Answers - -->Digestibility
-->Feed Consumption
-->Provision of nutrients
What is forage quality? - Answers - sum of facts that influence the nutritive value of
forages for herbivorous animals
What are the three systems,s of grazing management? - Answers - -->Continuous
Grazing
-->Rotational Grazing
-->Strip Grazing
What is Continuous grazing? - Answers - -->stocked with animals at all times
-->results in over and under grazing patches of pasture
-->excess can be stockpiled for later
What is Rotational grazing? - Answers - -->divided into smaller paddocks and animals
are allowed access to one at a time
-->increase average forage quality by eliminating over and under grazing
What is Strip grazing? - Answers - -->animals allowed access to a new strip
daily/several times a day
-->in New Zealand
-->gives max forage utilization
Cool season forages - Answers - -->species that grow most rapidly during cold moist
seasons of the year and usually go dormant during hot dry periods
->Ryegrass orchards grass, tall fescue
Warm season forages - Answers - -->species that grow during the warm or hot periods
and are dormant during the cool periods
->Bermudagrass, bahiagrass
ANSWERS
Most important protein supplement, all others are compared to this one - Answers -
Soybean Meal (SBM)
second most important protein supplement, and what is the toxin associated with it? -
Answers - Cottonseed meal (CSM)- associated with toxin gossypol
Which anti-nutritive factor is contained in Soybeans, and therefore they must be heated
to destroy this? - Answers - Trypsin inhibitor
Protein feed derived from slaughterhouse waste, is high in collagen, and is a concern
because of "mad cow" disease - Answers - Meat meal (meat and bone)
Protein source collected from the kill floor of slaughter plants, contains 80%+ CP, is high
in lysine but severely deficient in isoleucine. It has low digestibility due to the drying
process and therefore is a good source of rumen undegradable protein to ruminants -
Answers - Blood meal
What are the types of NPN discussed in class? - Answers - -->Urea- most common
source for ruminants
-->Biuret- 2 molecules of urea that have been condensed
--> Dried poultry waste
Mycotoxin in corn - Answers - toxins elaborated by molds (fungi) growing in or on
feedstuffs
Mycotoxins in peanuts - Answers - -->susceptible to aflatoxins
-->"hogging off": earlier practice in swine, produces soft pork due to unsaturated oil
consumption
-->don't feed fat peanuts for several weeks before slaughter
What is rumen undegradable protein, why would we feed it, what are some sources? -
Answers - -->insoluble proteins that escape/bypass the rumen
-->should feed it to growing/lactating ruminants to help meet the higher protein
requirements to supply AA, for adult ruminants for maintenance and for protecting
feedstuff protein from ruminal degradation
-->sources-?
What is RUP? - Answers - Rumen undegradable protein
, What are some methods to make RUP from degradable protein sources? - Answers - --
>Heat treatment
-->Coat protein w/fat
-->Treatment w/tannins
Why would we feed RUP? - Answers - Growing or lactating ruminants: higher protein
requirements to supply amino acids for muscle growth and milk production
Roughage feedstuffs are generally classified as feeds that contain greater than ___&
crude fiber and less than __% TDN - Answers - 17% CF
70% TDN
We spent a lot of time discussing forage quality. What are the 3 main factors we used to
assess forage quality? - Answers - -->Digestibility
-->Feed Consumption
-->Provision of nutrients
What is forage quality? - Answers - sum of facts that influence the nutritive value of
forages for herbivorous animals
What are the three systems,s of grazing management? - Answers - -->Continuous
Grazing
-->Rotational Grazing
-->Strip Grazing
What is Continuous grazing? - Answers - -->stocked with animals at all times
-->results in over and under grazing patches of pasture
-->excess can be stockpiled for later
What is Rotational grazing? - Answers - -->divided into smaller paddocks and animals
are allowed access to one at a time
-->increase average forage quality by eliminating over and under grazing
What is Strip grazing? - Answers - -->animals allowed access to a new strip
daily/several times a day
-->in New Zealand
-->gives max forage utilization
Cool season forages - Answers - -->species that grow most rapidly during cold moist
seasons of the year and usually go dormant during hot dry periods
->Ryegrass orchards grass, tall fescue
Warm season forages - Answers - -->species that grow during the warm or hot periods
and are dormant during the cool periods
->Bermudagrass, bahiagrass
