Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

320 fundamental growth and Development > ANSC 320 fundamental growth and development > Flashcards

ANSC 320 fundamental growth and development Flashcards

(63 cards)

Start Studying
1
Q

of beef cattle in Alberta

A

5 Million

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Cattle slaughtered in Alberta Plants

A

2.1 million (75% canadian total)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Alberta farm recits

A

3.2 billion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Alberta beef sold to US

A

30%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

albertas beef sold to other proviences

A

50%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Alberta beef sold to other countries

A

8%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How many sloughter cattle exported to usa

A

500 000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

pigs produced in canada

A

30 milliion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

albertas pig pop.

A

13.7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

sheep in Canada

A

1.1 million

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

sheep in AB

A

200 000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

goats in Canada

A

<200 000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

most meat consumed in world

A

Goat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Russian Farmed fox experiment

A

Bread for tameness but many other traits changed, colour, ears, barks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

growth

A

-increase in size
anabolism> catabolism
growth=sum of increase in all parts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

development

A

Change in shape

parts do not grow at same rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Isometric

A

growth with out development

-weight of an organ remains a constant fraction of whole body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

allometric

A

growth with development
-weight of an organ is not constant fracton of the whole body during growth
Y=aX^b

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Pigs

A 
gestation-3 months, 3 weeks, 3 days(1.5-2.5 kg)
nurse for 21-28 days (7kg) 
wont cycle until piglets are weaned 
castrated-barrow
female young- guilt
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

sheep/goats

A

breeds seasonal
easter market
castrate- wether

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

deer/elk

A

gestation 234 days

rut-Sep-Nov

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

lecture 3

A

principles of growth and development

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

rate of gain curve

A

peaks at 10 months in beef hurd bull 

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

allometry curve benefits

A

some areas of body take alot longer to grow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
incremental growth
how proportional growth is compared to weight
26
types of growth
positive(anabolism>catabolism) negative(catabolism>anabolism) restricted(dynamic equilibrum)(cataboloism=anabolism) Compensitory(Catch-Up)(anabolism>>catabolism
27
ontogeny
Study of Development(in an animals life time)
28
Phylogeny
study of evolution
29
growth and development regulators
- genetics - Hormones - Environment - Nutrition
30
Lecture 4
Principles of growth and Development
31
Determinants of growth and Development
genetics=genotype | appearance= phenotype
32
2 types of traits
Mandelian-single gene | Polygenic (or additive or quantitative)
33
polygenic traits
- most growth and development traits - have more than one gene involved - Additive, dominant or epistatic(genes turned on in response to environment)
34
Hybrid Vigour
breed two animals to get best of both breeds
35
Programmed cell growth
``` early cell growth and cell renewal is programmed or genetic -determinant and indeterminant -hyperplasis and hypertrophy -differentiated verses undifferentiated expanding verses static pop. ```
36
Levels of growth
Skin Cellular Growth Under Skin Muscle stem cells
37
Skin Cellular Growth
Undifferentiated(mitotic), cell division | -hyperplasia, expanding population, indeterminant
38
Under Skin
Differentiated, cell size | -hypertrophy, static pop, determinant
39
Muscle stem cells
undifferentiated, stem cells, renewing, indeterminate
40
hyperplasia vs hypertrophy
hyperplasia-increase in number of cells | hypertrophy-increase in organ size, due to increase in cell size
41
skeletal muscle(bovine)
hyperplasia-pre-natal | hypertrophy -post-natal
42
Adipose tissue(porcine)
hyperplasia-Pre-natal | hypertrophy->2 months old
43
Adipose(bovine)
hyperplasia-up to 16 months | hypertrophy-post-natal
44
programed tissue growth
Interstitial (or endogenous) | Appositional (or exogenous
45
Interstitial
growth occures throughout tissue | eg muscle
46
Appositional
growth occurs at certain points in the tissue | eg bone or skin
47
similitude
- the quality of being similar to something - size increase without shape change - w=kl^3
48
body growth
limits - fitness(gravity, surface area, blood pressure) - homeostasis(nutrient supply, temp, wast removal)
49
under-nutrition and enviroment
- in closed environment such as uterus, nutrition can be a limiting factor - may affect ratio of males to females
50
Class 5
- define sex ratio and how production can affect it | - to understand the theories behind sex and the factors that affect it
51
sex ratio
number of males as a proportion of total births
52
sex of animal
- determined at conception - determined by genetics - expected to have 50:50 ratio
53
haldanes rule
When in the F1 offspring of two different animal races one sex is absent, rare, or sterile, that sex is the heterozygous sex
54
sex ratio and genetics
- sex determined by father | - some sires change sex ratio
55
genetic vs environment sex ratio
genetic-segregation distortion of chromosome loci | enviroment-my be nutritional(crowding or failure to implant
56
primary sex ratio
number of male per 100 females at conception
57
secondary sex ratio
number of males per 100 females at birth
58
chen and Dzuilk 1993
proportion of males tends to decline with uterine crowding
59
Trivers and Willard Hypothesis
- if one sex gains more from parental investment, parents will work for it - good condition mothers will produce males
60
sheldon and west
Species with male-based sexual dimorphism tends to have a positive relationship between sex ration and maternal condition
61
toro 2006
higher conception rate of males because higher death rate in utero
62
facrtors affectiong promary sey ratio
- increase in x or y carrying sperm - uterine enviroment - time of conception - age of dam - nutrition of dam - parity order - social order
63
factors affectiong secondary sex ratio
- uterine enviroment - stress - first parity - litter size - season of birth - dam nutrition - population density

320 fundamental growth and Development (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions