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62 Cards in this Set
- Front
- Back
what is the photosynthesis equation?
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6CO2 + 6H2O + 673 Kcal (solar) = C6H12O6 + 6H2O
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what in the internal respiration equation?
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C6H12O6 + 6O2 = 6CO2 + 6H2O +36 ATP
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the goal of mankind is to exploit/ manage animals efficiently and in a sustainable manner in order to produce what 6 things?
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1. meat
2. milk 3. eggs 4. fiber 5. draught power 6. leisure |
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what are some examples of herbivores?
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cattle, sheep, goats, antelopes, elk
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what are some examples of carnivores?
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lions, dogs
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what is an example of an omnivore?
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pig
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what are some examples of monogastrics?
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pigs, rabbits, poultry, equines
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the ____ stomach of ruminants perform the same function as that of monogastric stomachs.
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abomasum
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what are the end products of the abomasum and monogastric stomach? (three)
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1. metabolizable energy (Kcal from CHO)
2. Amino acids (body building blocks) 3. fatty acids and glycerols (from lipids) |
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what are the 3 things animal feeds can be classified into?
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1. roughages
2. concentrates 3. succulents |
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____ are bulky feedstuffs which have high fiber contents?
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roughages
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what is the CF content of roughages?
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>18%
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what is the primary feed for all herbivorous animals?
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roughages
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what are some examples of roughages?
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pasture, hay, straws
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are monogastrics able to digest roughages?
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they have a very low ablility to do so.
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what are the 3 factors affecting nutritive values of roughages?
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1. stage of marturity
2. soil fertiliity 3. harvest and storage methods |
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The digestibility of DM ____ as plant matures especially grass varieties. This is attributed to increase in cell wall contents ____ and ___ and decrease in cell contents ____ ____
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declines
cellulose and lignin crude protein |
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the productivity and quality of pasture is determined by ?
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soil fertility
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rangelands are relatively ___ in fertility?
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low because of leaching or shallow and alkaline soils
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grass/legume pastures are recommended for soil fertility becauase they have the ability to do what?
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fix nitrogen in the soil and grass take advantage of nitrogen
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sun bleached hay will result in rapid loss of what?
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carotines (precursor to vitamin A)
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poorly cured hay looses ___ ___ and can have ____
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nutritive value
molds |
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what are two major groups of pasture species?
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grasses (monocotyledons)
legumes (dicotyledons) |
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Grasses have a high quality of ___ and ___ and have ___ ___ content
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high quality of starch and cellulose and low protein content
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legumes have good quality ____ and _____ mainly _____ _____ and _____
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proteins and minerals mainly calcium, magnesium, and sulphur
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forages can be conserved as ___ or ____
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hay or silage
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what is the difference between hay and silage?
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silage we keep air out and green materials undergo fermentation under anaerboic conditions.
In Hay, we keep the moisture low through drying the green materials. |
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what is a concentrate?
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described as feed or feed mixture, which supplies primary nutrients (protein, carbohydrates, and fat)
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concentrates contain ___ crude fiber and has low moisture?
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less than 18%
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concentrates are high in ___ and ___ but low in ___
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high in nitrogen free extracts and total digestible nutrients but low in crude fiber
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what are the 2 types of concentrates?
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1. protein rich concentrates
2. energy rich concentrates |
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what are the 4 things that classify protein-rich concentrates?
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1. plant protein concentrates
2. animal protein concentrates 3. non-protein nitrogen feedstuffs. 4. single cell proteins. |
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Several oil bearing seeds are grown for vegetable oil for human food. The by-products after oil extraction form ___ rich products for feeding livestock.
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protein rich products
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what are some examples of plant proteins when after their oils are removed, the byproduct is used for livestock feed?
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soybean meal, cotton seed cake, sunflower cake, ground nut cake, coconut or copra cake, peas meal.
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how much oil does whole soybean contain?
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15-21% oil
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soybean meal contains ___% CP, ___% fat, and ___% CF
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35% CP
18% fat 5% CF |
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the concentration of what 2 AA are sub-optimal in soybean meal?
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cysteine and methionine
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what are the toxic stimulatory and inhibitory substances that soybean meal contains?
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toxic stimulatory and inhibitory substances such as allergens, goitrogenic and anti coagulant factors
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what does the protease inhibitor in SBM partly responsible for?
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growth retarding when raw or non-heat treated soybean meal is fed to animals
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to inactivate the trypin inhibitor, soybean is heated to ___ C for __ min.
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100 C for 3 min.
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does SBM protease inhibitors pose a danger to ruminants?
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no
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SBM is poor in vitamin _ and must be supplemented with ___ ___
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vitamin b
animal protein |
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cotton seed cake has good quality ____ but is low in which 3 AA?
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protein
cysteine, methionine, and lysine |
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what is the Ca: P ratio in cotton seed cake, what can happen because of this?
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1:6
can cause deficiency symtoms |
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cotton seed cake is a good source of _____ but poor source of ____
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thiamine
carotene |
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cotton seed cake contains DM of yellow pigment called ______ which is anti-oxidant and inhibitor/toxic to young monogastrics?
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gossylpol
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what are the 4 major symptoms of gossypol toxicity?
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1. anorexia
2. weight loss 3. dypsnea (difficulty breathing) 4. cardiac irregularity |
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are ruminants sensitive to gossypol toxicitiy?
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no
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how much fiber content does sunflower cake have?
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42%
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sunflower cake is low in ___ but has twice as much ___ as soybean.
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low in lysine
methionine |
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ground nut cake is low in ___, ____, ___ and ____
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cystine
methionine vitamin B12 calcium |
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ground nut cake should nut exceed __% of the diet?
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25%
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what does ground nut cake contain ?
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anti-trypsin
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coconut or copra cake is highly sustainable to ___ when stored.
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rancidity
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coconut or copra cake is low in ___ and ___.
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lysine and histidine
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since coconut or copra cake is high in fiber content, it should not be feed to ___ and should be fed in smaller amounts to___.
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monogastrics
pigs |
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what does coconut meal need to be supplemented with to balance the aa profile?
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animal protein
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peas meal is low in __ content
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CP
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peas meal has a high content of ___, ___, and ____
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lysine, methionine, and cystine
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all roughages contain more than --%?
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18% CF
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for feed to be considered a protein concentrate is must contain more than __% CP?
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18%
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what is gossypol
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a yellow pigment found in cotton seed cake. It is an anti-oxidant and inhibitor/ toxic to young monogastric diets of pigs and poultry shouldnot contain more than 100g. free gossypol/kg.
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