Exam (elaborations)
ANSC 108 test review 2
- Module
- Body systems
- Institution
- Body Systems
ANSC 108 test review 2
[Show more]
Seller
Follow
Content preview
ANSC 108 test review 2#1 country in swine production - ANS-China
3 Major production systems in beef cattle production - ANS-1) Cow- calf production-
involves cows and heifers mated to bulls, either by natural service or artificial
insemination, to produce a calf crop
2) Stocker operations- utilize available forages or roughages to grow cattle from
weaning until weight-ready for entrance into feedlot
3) Feedlot production- involves feeding high concentrate rations to cattle in a large
confinement facility specifically designed for finishing cattle
Accessory Glands - ANS-1) Vesicular glands: nutrients and buffering
2) Prostate glands: cleanse urethra before ejaculation
3) Bulbourethral glands- help to force semen from urethra at time of ejaculation
Advantages and disadvantages of rotational crossbreeding - ANS-Advantages-
complimentary, hybrid vigor and heterosis, keep replacements
Disadvantages- lower heterosis than the terminal system, reduction in growth potential
and carcass merit
Advantages to using AI(5) - ANS-1) genetic improvement through increased use of
superior sires
2) Disease control- especially STD's
3) improved record keeping
4) eliminates need for bulls kept on farm
5) more economical
All in all out - ANS-completely empties a barn between groups of hogs (all enter and
leave at the same time)
Advantages- allow for cleaning, disinfection and better disease control
Disadvantage- require higher level of management
Animals with less fat.. - ANS-have lower numerical yield grades
Barrow - ANS-castrated male
, Beef check-off fund - ANS-$1/head each time sold, money utilized for research,
advertisement and marketing of beef products
Burdizzo - ANS-bloodless method for castration
Correlation between base width and muscling - ANS-lighter muscled animals tend to be
narrow standing with minimal muscle expressions
Cross-breeding systems - ANS-Rotational system: 3 or 2 breeds rotated, most popular,
replacement gilts kept and used for mating sire breeds
Terminal- offspring marketed, no replacement gilts are kept
Rotaterminal- replacement gilt production (20%), white crossbreed females mated to
colored-breed boars to produce terminal market hog (80%)
Cryptorchid - ANS-where 1 or 2 of the testis remain in the body cavity, heritable trait
Cuts of beef - ANS-round, loin, rib, chuck
Dressing percentage in cattle? (4) - ANS-62%
affected by amount of fill, degree of finish, weight of hide, head shanks and muscling
Dressing percentage of lamb - ANS-52%
low because small ruminants and weight of pelt
Ear notches - ANS-left ear: individual #, right ear: litter #
EPD - ANS-expected progeny difference- predicts difference I performance of future
offspring of a parent, as compared to progeny from other parents, when each are bred
to mates of equal value
Estrogen(4) - ANS-responsible for sexual behavior during estrus, secondary sex
characteristics at time of puberty, relaxes cervix, elevates secretory activity of entire
reproductive tract
Estrous cycle in a cow - ANS-21 days
Factors that influence dystocia - ANS-birth weight of calf, sex of calf, pelvic size of
heifer/cow
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller modockochieng06. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.52. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now