BASC108A Flashcards
Cattle originated from what word?
Chattel (possession)
Estimated number of cattle in the world.
1.3 Billion
What continents are cattle first domesticated?
Europe and Asia
Two ancient ancestor of cattle
Bos taurus and Bos indicus
Bos taurus is a mixture of?
Bos primigenius (Aurochs) and Bos longifrons (Celtic Shorthorns)
Estimated number of breeds of sheep in the world
More than 200
Ancestors of present-day sheeps
Moufflons and Asiatic urial
Goats are adapted from what ancestor?
Bezoar Ibex (Capra aegagrus)
Bezoar Ibexes are native to?
Southern slopes of Zagros and Taurus mountains in Iran, Iraq and Turkey
How many days can a bull detect a cow prior to its in-heat period?
1-2 days
Position of sheep when urinating
Squat position
Is goat browsers or grazes?
Browsers
Is cattle browsers or grazers?
Grazers
Sheeps have bitter taste than goats. True or False?
False
Carabao has what instinct?
Wallowing
How many percentage of ingesta is being fermented by microbes?
60 - 75%
The regurgitation, rechewing and re-swallowing of ingested food
Rumination
Mass of regurgitated ingest
Cud
Other term for cud
Bolus
How many gallons of saliva does a cattle secretes in day?
12 gallons
How many gallons of saliva does a sheep secretes in day?
2 gallons
There are enzymes in the sheep saliva. True or False?
False
Sheep saliva has a high or low pH?
High
Muscle contractions in esophagus move in both directions. True or False?
True
There are sphincter valve in the esophagus of ruminants. True or False?
False
Other term for abomasum
True stomach
What is the location of rumen in the body?
Left side of abdomen
Rumen has villi or papillae lining?
Papillae
Is the rumen functional at birth?
No
Temperature of rumen
39 degrees Celcius
What is the type of digestion in rumen?
Fermentation
Fermentation in rumen is aerobic. True or False?
False
What is the maximum content of rumen in a 150lb ewe? (Answer in gallons)
5 - 10 gallons
What is the maximum content of rumen in a 1000lb cow? (Answer in gallons)
55 - 60 gallons
Normal content of rumen in a 1000lb cow.
25 - 30 gallons
Normal content of rumen in a 150lb ewe.
3 - 5 gallons
What is the pH of rumen?
6.5 - 6.8
This VFA comes from cellulose.
Acetic acid
Ionophore feed additives increases the production of propionic acid. True or False?
True
This VFA comes from starch.
Propionic Acid
What are the chemical compounds given off in acetic acid in order to form pyruvic acid?
CO2 and CH4
This VFA is derived from acetic acid.
Butyric acid
What is the location of reticulum in the body?
Located next to heart
What is the appearance of reticulum?
Honeycomb
Reticulum does not secret enzymes. True or False?
True
The reticulum is sometimes referred to as?
Hardware stomach
It is the veterinary recommended treatment for hardware disease.
Cow magnets
Other term for omasum.
Manyplies/Butcher’s Bible
What is the shape of omasum?
Spherical
Why does chief cells in abomasum secrete mucous?
To protect the abomasal wall from acid damage
Give the three small intestine section (in order).
Duodenum, jejunum, ileum