Feeding / Ingestive Behavior Flashcards
Most domestic animals are stimulated to eat due to
Social facilitation
Taste preference of dogs
Canned or semi moist food
Prefer cooked meat
High-protein meat
Odor is important in detecting preferred food
At what situation does the food intake of dogs increase
In the presence of other dog
Other factors affecting feed intake of dogs 6
Environmental temperature
GIT factors
Estrogen level
Glucoprivic eating
Diluted diet
Decrease or increase of body weight
Clinical problems in dogs
Obesity
Anorexia
Pica
Grass eating
Coprophagia
compensatory behavior in animals aimed at restoring blood glucose levels during conditions of low glucose availability
Glucoprivic eating
Cause by intake energy exceeds the output of energy; often seen in non-working animals Fed a highly palatable diet
Obesity
Loss of appetite
Anorexia
Eating non-food materials; it can be due to nutritional deficiency or extreme form of oral exploration
Pica
Is a means of obtaining roughage, provision of an emetic
Grass eating
Eating of feces
Coprophagia
A feral cat with good hunting skills might easily catch ___ mice or ___ rats per day
12, 3
Social facilitation of cats
Cats do not increase food intake when housed in groups
Sometimes they do need their owners presence
Palatability in cats
- Cats are notoriously finicky
- They do not prefer sucrose
- Cats will not eat diets containing medium chain triglycerides or hydrogenated coconut oil
- Cats do not respond to glucoprivation
- Cats prefer fish, novel diets
- The presence of lingual lipase can break the triglycerides down to fatty acids in their mouth providing bitter taste
Cats drinking milk show- –
Decline in brain temperature and cease to eat
Show a decline in brain temperature and cease to eat
Cats drinking milk
Suppresses feeding in cats
Glucoreceptors
Where are glucoreceptors present
Liver
Suppresses food intake of cats
CCK - pancreozymin and bombesin
Hormone that increase cat’s food intake
Progestins
Cats that have lower metabolic rate
Ovariohysterectomized and castrated cats
What happens when cat’s food is diluted with water
Cats increase the volume of intake and maintaining caloric intake constant
Meal pattern of pig
- most feeding take place during the day
- circadian rhythm feeding behavior
- reduced feeding in high temperature; eats early in the morning or late in the evening
- Eat 8-12 meals/day; meals decrease as pig grow larger
- when housed in groups, pigs tend to eat at separate times
- individually housed pigs tend to eat at the same time
Palatability of pigs
- Prefers sweet substances consuming up to 17L of sucrose per day
- Intake and weight gain aren’t affected by bitter taste
- sows avoid blue food
- Newly weaned pigs show a drop in weight gain
- pigs learn to associate a given flavor with a familiar feed
Animals eat to _____ and stop eating to prevent _____
Keep warm, hyperthermia
Function of cholecystokinin -pancreozymin (CCK)
- Stimulates contraction of gall bladder
- stimulates release of pancreatic enzyme
- inhibit food intake in hungry animal
- acts on stomach by slowing gastric emptying to produce satiety feeling
Found peripherally in the GIT as well as brain stem
CCK-A
An emergency mechanism the animal uses when its endogenous energy supply is approaching exhaustion
Glucoprivation
Chew rate of grazing horse
30 to 50 bites/min for 8-12h/d
Ingestive social facilitation of horse
- Horse eat more in groups
- horse prefer to eat from the floor and shallow buckets; enables them to see all direction between their legs
Palatability of house
- Strong preference for sucrose but no preference for sour, bitter, or even salt solution
- grazing behavior is selective
What is the first sign of colic in horses
Anorexia
Abdominal pain in horses
Colic
Stimulates food intake in horses
Diazepam and promazine
Clinical problems in horses
- Cribbing
- Aerophagia or wind sucking
- Wood chewing
Oral behavior in which horses grasps a horizontal surface such as the rim of a bucket or the rail of a fence with its incisors, flexes its neck, aspirates air into its pharynx
Cribbing
Horse aspirate air without grasping an object
Aerophagia or wind sucking
Ingestion of wood; this can be due to high roughage in the diet, use of high concentration diet (horse)
Wood chewing
found in the brain and mediate panic behavior
CCK-B
Stimulates contraction of gall bladder
CCK - pancreozymin
Inhibit food intake of hungry animals
CCK - pancreozymin
Stimulates release of pancreatic enzyme
CCK - pancreozymin
