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62 Cards in this Set

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