Ruminant vs Non-Ruminant - Tarleton State University
Download
Report
Transcript Ruminant vs Non-Ruminant - Tarleton State University
SWINE NUTRITION
Single
stomach
Eat feed low in fiber
Humans are also
non-ruminants
1.
2.
3.
4.
5.
Mouth
Esophagus
Stomach
Small Intestine
Large Intestine
Breaks down
feedstuffs into …..
simple chemical
parts…..
so the pig can
absorb…..
and utilize them .
Breaks down feed
stuffs by chewing
Adds saliva to help in
digestion
Muscles contract to
move the food down
to the stomach
Adds digestive juices
to break down food
The small intestine….
Mixes secretions
Absorbs nutrients
Storage and formation
of feces
Absorption of water
Secretion and
reabsorption of
electrolytes
Non-ruminant
Abomasum-
true stomach
depends on digestive enzymes
pepsin, rennin, trypsin, chymotrypsin, HCL
Needs
energy
(fat and CHO), protein (a.a.), minerals
(Ca:P 1.2:1 to 1.5:1), vitamins, water,
antibiotics and other additives
Swine Nutrition
Basic
diet is Corn and Soybean Meal
standard ration based on cereal grains,
SBM, vit., minerals, additives
majority buys a SBM pre-mix to add to corn
or milo
Energy sources
cereal
grains -CHO
Fat
Protein
Cereal Grains- CHO Values
corn-
100% energy value - 8% CP
wheat - 99% use 12.5 % CP
milo - 96% (more variable on protein
content) use 8% CP when unknown
FEEDS
Definition-
any ingredients or material fed
to animals for purposes of sustaining them
Classes of Feeds
roughages
concentrates
by-products
protein
supplements
minerals, vitamins, and additives
Swine Nutrition
Concentrates
- high in energy, low in fiber
and < 20% protein
corn, barley, milo, wheat, rye, oats
thumb rules - ok in P, low in Ca
low
in vitamins, except for beta carotene (A)
protein and minerals are low
Corn
is high in energy, low in fiber and
palatable (7-9% protein)
Swine Nutrition
Proteins
- high in nitrogen
protein quality - amino acids
essential
vs non-essential
limiting amino acids (lysine, methionine &
typtophan); sometimes threonine
Protein Sources
Soybean
Meal, Fish Meal, Meat and Bone
Meal, Peanut Meal; not Cottonseed Meal
(gossypol toxicity)
NPN= non-protein nitrogen- not for swine
or poultry
Classes of Feeds
Vitamins
natural,
synthetics
water vs fat soluble classification
A,D,& E are most common in ruminants
A, D, & E and B vit. re needed for nonruminants
Vitamins
Riboflavin
Niacin
Pantothenic Acid
B12
Choline
Vit A
E
Minerals- need 10
macro
or major- Ca, P, NaCl
trace - Fe, Cu, Zn, Mg, Si, Se
Classes of Feeds
Special
Fats
Feed
Feeds
and oils (increase calories without bulk)
additives
increase
efficiency of gain, prevent diseases,
preserve the feed
antibiotics,
hormones, paylean, navigator, etc.
Swine
Creep Feeding
start
at 3-10 days
high protein and sugar
switch at 40 lbs
adv. - uniformity, increase weaning weight,
decreases mortality, scours, weight loss by
sow and setback when weaned
Swine Feeding Stages
starter
pig ration at 10- 50 lbs (18%)
grower ration at 50 - 100/125 lbs (16%)
finishing ration at 125-250 lbs (12-14%)
Swine Feeding
feed
efficiency should be around 3:1
3 lbs of feed to yield one pound of wt. gain
full vs limit feeding for growing-finishing
replacement gilts should receive 4 lbs/day
increase feed 2-3 X during lactation
Swine Feeding cont.
Sows
and boars is condition dependent
can add peanut or alfalfa hay (limited)
do not over feed
Swine Feeding cont.
Soft
Pork - caused by lower melting points
in the makeup of fat caused by feeding
certain feeds: ie. too much peanut meal
Trichinosis - traditionally garbage fed swine
FUNCTION OF FEEDS
Maintenance-
a ration which is adequate to
prevent any loss or gain of tissue in the
body when there is no production
the
difference in energy needs are related to the
amount of activity
Growth-
increase in size of muscles, bones,
internal and external parts of the body (the
foundation of animal production)
Finishing- the laying on or deposition of fat
Evaluation of Feedstuffs
Physical- stage of plant maturity, foreign material,
etc.
Cost/Unit of nutrient Protein ex.
SBM
@ $6.00/cwt. @ 44% c.p.
100 X .44=44 lb of crude protein from cwt of SBM
$6.00/44 = $.136 per pound of protein
OR $320/ton for 44 % SBM =
2000 X .44 = 880; $320/ 880 = $.36 per pound of
protein for corn
Evaluation of Feedstuffs
observe:
palatability,
grade, preparation, ingredient
combination, and quantity fed
Chemical Analysis protein,
Digestion
proximate analysis
fat, moisture, and ash (minerals)
trial example
Evaluation
Measuring
of Feedstuffs
Energy
TDN=
sum total of the digestible protein, fiber,
and nitrogen free extract, and fat X 2.25
Calorie or Net Energy system
Net
Energy= gross energy-fecal energy-gaseous
energy-urinary energy-heat increment
gross energy = combustion heat
Evaluation of Feedstuffs
digestible
energy = portion of gross energy that is
not excreted in feces
Metabolic energy = portion of gross energy that is
not lost in feces, urine and gas
heat increment = difference between ME & NE
heat unavoidably produced by an animal in
digestion and metabolism
Pigs:
we use DE more often
How to Balance a Ration
Consideration
availability
points
and cost of feedstuffs
moisture content
composition of feedstuffs
nutrient allowances
composition of ration needed
How to Balance a Ration
Methods
Pearson
Square
Trial and error
Net energy
Computer
Commercial Feed Selection
Reputation
of the mfg.
Needs
Feed
tag guarantee
Flexible formulas
Home vs Commercial Mixed
Feeds
Options
commercially
prepared
purchase grain and add protein supplement
use home grown grain and add protein suppl.
purchase commercial feed and add only mineral
and vitamin pre-mix
add all indiv. ingredients
Feeding Systems
Hand
vs Self feeding
Self feeding advantages
less
labor
increase feed consumption
increase gains and earlier marketing
not likely to go off feed
time and $$$$ saved by bulk feeding
Feeding Systems
Self
feeding disadvantages
unless
mixed correctly, animals tend to select
grain and discard roughage; therefore, grind it
find or pelletizing is essential
increase cost, if more concentrate is fed
Other
pigs-
add ground alfalfa
Feeding Systems
Creep
feeding-
the
supplemental feeding of young nursing
animals in an enclosure which is accessible to
them but not to their parent
gains
for young animals are cheap gains due to less
fat content in young animals and less
consumption/body wt.
adv.- increases weaning wt., uniformity, achieve
genetic potential, assists first sows, etc.
Feeding Systems
Feeds
should not be abruptly changed
Check for Nutrient deficiencies
Nutrient Deficiencies
Protein
depressed
appetite, lower energy intake, loss of
weight, slower growth, irregular or delayed
estrus, reduced milk production
Major
Minerals
Ca & P - rickets (fragile bones)
Salt - coarse hair coat, loss of appetite
I - goiter, poor growth, listlessness
Nutrient Deficiencies
Mn
- weak legs
Zn - rough skin- parakeratosis
Fe - anemia
Se - white muscle disease
Co - weakness, loss of appetite
Cu - severe diarrhea, weight loss, rough,
coarse, bleached coat, anemia
Nutrient Deficiencies
Vitamins
A -
most likely, esp. in confinement animals
beta
D
carotene is essential
- rickets, osteomalacia in mature animals
E - white muscle disease (Se related)
K - Excessive bleeding (coagulant Vit)
B & C ruminants (No problem); yet with nonruminants; yes, there can be a problem
Nutrient Deficiencies
Water
source
major
constituent of the body
determined by rate of gain, lactation, reprod,
environment, activity, feed intake, etc.
salt
(>1% = toxic)
Nutritional
deficiencies come by too little or
too moldy (<200 ppm aflatoxin in corn)
Preparation of Feeds
Coarsesness
of grinding- hogs prefer coarse
particle size, however, we see an increase
FE with decreasing the grind size because
of increased digestibility, but too finely
ground feeds aggravate the stomach and
cause ulcers
Preparation of Feeds
Pelleting-
costly, improves digestibility, size
(smaller the better), increases the value of a
high fiber diet, improves feed efficiency
High moisture or reconstituted- slight
increase in FE, yet problems in the summer
(mold)
Preparation of Feeds
Wetting
or soaking- decreases wastage,
saves labor, increases gains and FE , Yet
gets soured in the summer
Relative effect of protein
deficiency
carcass
characteristics
feed efficiency
gain/growth