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Grade 12 Agricultural Sciences summary notes
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Has notes on the aspects covered in grade 12 from animal nutrition, production, reproduction and many more
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Annual NotesJANUARY 1, 2020
Compiled by Mr E.C. Mabuza
, 1
Table of Content
Content Page
1. Animal nutrition 02- 35
2. Note taking 35-36
3. Animal production 37-47
4. Note taking 47-48
5. Animal reproduction 49-78
6. Note taking 78-70
7. Animal disease and protection and plant poisoning 80-108
8. Note taking 108-109
9. Basic Genetics 110- 132
1O. Note taking 132- 133
11.Production factors 134- 153
12.Note taking 153-154
13.Agricultural marketing 155- 181
14.Agricultural entrepreneurship and business planning 182- 185
15.Note taking 186
O768538168 By E.C Mabuza evansneomshengu@gmail.com
, 2
Paper 1
ANIMAL NUTRITION Question 2
This refers to the foods consumed by animals and how it is digested to help
to keep the body of an animal healthy and warm
Different animals has different digestive system that suit their feeding
standard and requirements
1.Alimentary canal of farm animals
Differences between Ruminants and non-ruminants
Structural differences:
Ruminant: has a complex stomach
: has four stomach compartments
Non-ruminant: has a simple stomach
: has less than four stomach compartment
Differences in feed utilized:
Ruminant : can feed on roughages (because of the presence of micro-
organism in the rumen that assist in digestion of roughage)
: can utilize urea (since micro-organism can change urea
into microbial proteins)
Non-ruminant: cannot feed on roughage ( such animal doesn’t have
rumen hence no micro-organism that assist in digestion of roughage)
: cannot utilize urea (doesn’t have micro-organism that
change urea into microbial protein, hence excess urea will be changed
into ammonia which is very dangerous for such animals)
O768538168 By E.C Mabuza evansneomshengu@gmail.com
, 3
ALIMENTARY CANAL OF NON RUMINANT
Alimentary canal of a pig
O768538168 By E.C Mabuza evansneomshengu@gmail.com
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