ANSC 3010 QUIZ 2 QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026
Nutrient - Answers - A feed constituent or group of feed constituents that aid in the support of life
- Chemical substance that provides nourishment to the body
Feedstuffs - Answers - any component of a diet (ration) that serves some useful function
- any material of natural or artificial origin, fed to animals for the purpose of sustaining them
IFN (international feed number) - Answers most descriptive information relating to feedstuffs give an
_______
which indicated how a feedstuff has been categorized
collective terms - Answers commercial feed trade uses _________ on feed labels instead of a string of
ingredients
chemical analysis - Answers - components of a feed into different general groups estimate the
relative amount that is present
- the most commonly used method is Proximate analysis
digestion trials - Answers measure feed consumption and fecal excretion over a period of time
balance trials - Answers - account for losses from urine, respiration and sometimes with skin
- more accurate measure of nutrient retention
feeding trials - Answers evaluate feedstuffs, dietary nutrient levels, additives, feed processing
methods, etc.
physical evaluation - Answers - often provides clues about their relative feeding value
- for roughages, color will indicate if the feedstuff has been cured (dried) properly, with an effect on
feeding value
- palatability (eye appraisal, smell, etc)
- cultural practices
cultural practices - Answers a general knowledge of fertilizing practices used for practical crop often
provides insight into potential nutritional problems
- affect relative feeding value
Cost/unit of nutrient - Answers in any commercial operation, consideration must be given to the cost
feedstuffs
moisture, acceptable temperature, substrate, adequate levels of oxygen - Answers molds require
four conditions in order to grow:
low moisture and low temp - Answers best way to control mold
subclinical toxicity - Answers the most common impact on animals, most likely associated with
_______
proximate analysis - Answers - most common analysis performed on fee samples
- a series of analyses performed to estimate the nutrient characteristics of a feed
dry matter - Answers - water is useful to an animal, but its presence in feed acts as a dilutent
- determined by drying the sample in an oven of one type or another
dry matter basis - Answers values are always higher on a _____
crude protein - Answers - protein contains N
- the feed sample is digested in hot, concentrated sulfuric acid, which converts all the carbon-
containing compounds to CO2
- N is trapped, measure and expressed as percentage
Kjeldahl method - Answers - measures nitrogen content of the feed
- does not provide any indication of quality of N
16 - Answers Generally, proteins contain _____% N
6.25 - Answers crude protein= N x ______
ether extract - Answers - fat content of feeds
- measure change in weight. Loss of weight of sample indicated ether soluble lipids
- quantitative not qualitative
crude fiber - Answers - boil ether extract sample in acid, then base, dry, and burn in Muffle Furnace
- difference in weight = _____
- developed to try to estimate indigestible portion of food in human GI tract
Ash - Answers - total mineral content (inorganic)
- measured by burning sample in muffle furnace
- measure of total mineral content
- indicates soil contamination
Nutrient - Answers - A feed constituent or group of feed constituents that aid in the support of life
- Chemical substance that provides nourishment to the body
Feedstuffs - Answers - any component of a diet (ration) that serves some useful function
- any material of natural or artificial origin, fed to animals for the purpose of sustaining them
IFN (international feed number) - Answers most descriptive information relating to feedstuffs give an
_______
which indicated how a feedstuff has been categorized
collective terms - Answers commercial feed trade uses _________ on feed labels instead of a string of
ingredients
chemical analysis - Answers - components of a feed into different general groups estimate the
relative amount that is present
- the most commonly used method is Proximate analysis
digestion trials - Answers measure feed consumption and fecal excretion over a period of time
balance trials - Answers - account for losses from urine, respiration and sometimes with skin
- more accurate measure of nutrient retention
feeding trials - Answers evaluate feedstuffs, dietary nutrient levels, additives, feed processing
methods, etc.
physical evaluation - Answers - often provides clues about their relative feeding value
- for roughages, color will indicate if the feedstuff has been cured (dried) properly, with an effect on
feeding value
- palatability (eye appraisal, smell, etc)
- cultural practices
cultural practices - Answers a general knowledge of fertilizing practices used for practical crop often
provides insight into potential nutritional problems
- affect relative feeding value
Cost/unit of nutrient - Answers in any commercial operation, consideration must be given to the cost
feedstuffs
moisture, acceptable temperature, substrate, adequate levels of oxygen - Answers molds require
four conditions in order to grow:
low moisture and low temp - Answers best way to control mold
subclinical toxicity - Answers the most common impact on animals, most likely associated with
_______
proximate analysis - Answers - most common analysis performed on fee samples
- a series of analyses performed to estimate the nutrient characteristics of a feed
dry matter - Answers - water is useful to an animal, but its presence in feed acts as a dilutent
- determined by drying the sample in an oven of one type or another
dry matter basis - Answers values are always higher on a _____
crude protein - Answers - protein contains N
- the feed sample is digested in hot, concentrated sulfuric acid, which converts all the carbon-
containing compounds to CO2
- N is trapped, measure and expressed as percentage
Kjeldahl method - Answers - measures nitrogen content of the feed
- does not provide any indication of quality of N
16 - Answers Generally, proteins contain _____% N
6.25 - Answers crude protein= N x ______
ether extract - Answers - fat content of feeds
- measure change in weight. Loss of weight of sample indicated ether soluble lipids
- quantitative not qualitative
crude fiber - Answers - boil ether extract sample in acid, then base, dry, and burn in Muffle Furnace
- difference in weight = _____
- developed to try to estimate indigestible portion of food in human GI tract
Ash - Answers - total mineral content (inorganic)
- measured by burning sample in muffle furnace
- measure of total mineral content
- indicates soil contamination
