nutrition Flashcards
1
Q
three nutritional needs satisfied by diet
A
-fuel ATP generated from the oxidation of dietary nutrients - raw materials building blocks of biosynthesis - essential nutrients
2
Q
monogastric in general
A
has a simple or single stomach that is unable to digest fibre
3
Q
ruminant in general
A
multi-chambered foregut that is able to digest fibrous diets
4
Q
four specialisations of birds digestive track
A
-crop stores and softens feed prior to entering the stomach - proventriculus glandular stomach like other monogastrics - gizzard muscular part of the stomach - branched ceacum post gastric fermentation
5
Q
monogastric digestive track
A
stomach the smooth elastic wall which is folded mucus membrane contains the gland the secretes acid -small intestine three areas duodenum, jejunum, ileum. the surface has villi to increase absorption surface -caecum contains microorganisms to ferment food smooth surface no villi -large intestine absorbs water, no villi
6
Q
ruminant animals digestive track
A
-rumination chewing of cud -stomach has four compartments -rumen -reticulum -omasum -abomasum
7
Q
componants of the rumen
A
digestion and fermentation vat
- contains anerobic microbes
- papillae increase surface are
- absorbtion of amonia
8
Q
componants of the reticulem
A
-polygonal cells honeycomb lining small thing papillae -collects long feed particles -formation of the food bolus regurgitation initiated here
9
Q
component’s of the omasum
A
folded lining
- reticulo-omasal orifice restricts movent of digestion into the omasum so that it is <1-2mm
- absorption of water
10
Q
abomasum
A
similar to humans
- true gastric stomach
- low ph
- denatures proteins and dissolves minerals
11
Q
duodenum, jejunum, ileum
A
mid cut and is the principle site of digestion in monogastric animals
12
Q
The oesophageal groove of the pre-ruminant
A
milk does not need to be fomented in the rumen.
the grove closes when suckling allows milk to go directly into abomasum.
