Exam (elaborations)
ANSC 333 Exam 2 Questions with Complete Solutions.
- Course
- ANSC 4100
- Institution
- University Of Guelph (U Of G )
ANSC 333 Exam 2 Questions with Complete Solutions.
[Show more]
Content preview
ANSC 333 Exam 2 Questions with Complete SolutionsWhat are the two centers located in the hypothalamus? Correct Answer-
tonic and surge
Males do not have a ___ center. Correct Answer-surge (happened during
fetal development)
Protein that when bound, can't cross the blood-brain barrier resulting in
the development of the surge center Correct Answer-alpha-fetoprotein
___ does not bind to alpha fetal protein so it can cross the blood-brain
barrier? Correct Answer-testosterone
___ is hard to measure in circulation and ___ is easy to measure in
circulation. Correct Answer-GnRH and LH
___ is a proxy for GnRH. Correct Answer-LH
Some activity in gonads and hypothalamus occurs before ? Correct
Answer-puberty
A continuous pulse of GnRH is released very 4-6 hours when? Correct
Answer-puberty is reached
,What are the 4 things that control the age of which an individual attains
puberty? Correct Answer-genetics, acute nutrition (short-term nutrition),
long-term nutrition, social environment, photo-period (season)
Where does the primary adipose deposition occur in females? Correct
Answer-mammary glands
___ breeds attain puberty at a younger age than ___ breeds. Correct
Answer-maternal and paternal
Define puberty. Correct Answer-the ability to accomplish reproduction
successfully
Accumulation of fat; body composition; nutritional reserves that mom
can draw from as baby grows; if we feed more or higher quality feed we
obtain higher percentages of fat Correct Answer-long-term nutrition
We want heifers at ___% of their mature BW by the time they attain
puberty? Correct Answer-60-65
Control GnRH by obtaining signals from multiple sources (FA's, etc.)
when it is ideal to start cycling; if one signal is off, the whole message to
start is delayed/absent Correct Answer-kisspeptin neurons
The number of animals in a group can alter the age at which they attain
puberty; pheromones are a big part (presence of a male) Correct
Answer-Social environment
, Affects sheep; most lamb in the spring time; natural breeding season is
in the fall (they can be big enough and fat enough, but if the season is
not right for their system they won't breed ---> negative impact on
hypothalamus) Correct Answer-Photo-period (season)
Many cycles throughout the year (ex: cow, queen, rodents) Correct
Answer-polyestrus
Mares are _________ breeders Correct Answer-seasonal (long day)
Small ruminants, such as sheep are ___ breeder. Correct Answer-
seasonal (short day)
Want to have offspring when? Correct Answer-nutrition is plentiful to
support lactation
One cycle per year Correct Answer-monoestrus (ex: dog, wolf, bear,
fox)
Two phases of estrous cycle Correct Answer-follicular phase and luteal
phase
The follicular phase begins immediately after? Correct Answer-
luteolysis
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 or Stuvia-credit 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 Classroom. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$17.26. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
84866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now