Page 1 of 50
AGRICULTURAL SCIENCES
Paper 1
GRADE 12
Prelim Exam 2025
Previous exam papers were used to compile these
notes,@IMPAQ JUN 2022,SC/NSC_ DBE/JUN 2021, 2022,
2023 & Mambane Secondary School Agricultural Sciences
Grade 12 Notes. EC/JUNE 2023. IMAGES: CANVA
These are only suggested answers from the memoranda.
Some information is repeated, I want to show you the different ways the same information
is asked. I encourage you to answer the calculation/illustration questions.
NOTE: You MUST study Term 1 and Term 2 notes with Paper 1 notes. If you have not
purchased Term 1 notes, please contact .
Good luck. Juffrou Ansie
Content:
Animal nutrition 3
Feed components, types and supplements 3
Digestibility, energy value, nutritional ratio, Pearson square 11
Energy loss, deficits and symptoms 17
Animal production, protection and control 21
Production systems and handling (facilities, behavior) 21
Housing and disease control 29
Parasites, sustainable medication use, poisonous plants 31
Reproduction 40
Reproductive systems and hormones 40
@Juffrou_Ansie
, Page 2 of 50
Estrus cycle 44
Reproductive techniques (AI, embryo harvesting/transplantation, synchronization) 45
Pregnancy, birth and milk production 47
_____________________________________________________________
Short questions:
Subsistence The system in which the production of animals and crops must
farming primarily feed the family
Dystocia The condition in which female animals experience problems during
parturition
Loss of libido The condition in bulls characterized by absence of sex drive
A feed flow A feed flow program is a strategic plan for a livestock farmer to
program ensure the availability of feed to meet the animals' needs
throughout the year.
Chronic diseases Chronic diseases are long-lasting and occur repeatedly in the same
animal.
Scrotum The scrotum is a protective bilobed sac that encloses and protects
the testis.
Placenta The placenta is a vascular membranous organ that brings the blood
of the mother and the foetus into close contact.
Implantation Implantation is the process when blastocyst attaches to the walls
of the uterus.
@Juffrou_Ansie
, Page 3 of 50
Animal nutrition
Feed components, types and supplements
The lower incisors of a pig
The lower incisors of the pig are almost horizontal and the lower jaw acts as a “shovel” for
food intake.
Parts into which the small intestine (number 2) is subdivided.
• Duodenum
• Jejenum
• Ileum
Digestive juices deposited in the small intestine
DBE/November 2021
• Gall
• Pancreatic juice
________________________________________________________________
Basic guidelines when transporting farm animals. (EC/SEPTEMBER 2023)
• Pregnant and injured animals should not be transported.
• Animals of different ages and sexes should be separated.
• Whistling and cracking of whips during transport on a road.
______________________________________________________________
The digestive tracts of farm animalsDBE/November 2020 & SACAI SEP 2022
@Juffrou_Ansie
, Page 4 of 50
____________________________________________________
The digestive tract of poultry(SACAI 2022)
The oesophagus (gullet) is a flexible tube that connects the mouth to the rest of the
digestive tract. It transports food from the mouth to the crop and from the crop to the
proventriculus.
@Juffrou_Ansie
AGRICULTURAL SCIENCES
Paper 1
GRADE 12
Prelim Exam 2025
Previous exam papers were used to compile these
notes,@IMPAQ JUN 2022,SC/NSC_ DBE/JUN 2021, 2022,
2023 & Mambane Secondary School Agricultural Sciences
Grade 12 Notes. EC/JUNE 2023. IMAGES: CANVA
These are only suggested answers from the memoranda.
Some information is repeated, I want to show you the different ways the same information
is asked. I encourage you to answer the calculation/illustration questions.
NOTE: You MUST study Term 1 and Term 2 notes with Paper 1 notes. If you have not
purchased Term 1 notes, please contact .
Good luck. Juffrou Ansie
Content:
Animal nutrition 3
Feed components, types and supplements 3
Digestibility, energy value, nutritional ratio, Pearson square 11
Energy loss, deficits and symptoms 17
Animal production, protection and control 21
Production systems and handling (facilities, behavior) 21
Housing and disease control 29
Parasites, sustainable medication use, poisonous plants 31
Reproduction 40
Reproductive systems and hormones 40
@Juffrou_Ansie
, Page 2 of 50
Estrus cycle 44
Reproductive techniques (AI, embryo harvesting/transplantation, synchronization) 45
Pregnancy, birth and milk production 47
_____________________________________________________________
Short questions:
Subsistence The system in which the production of animals and crops must
farming primarily feed the family
Dystocia The condition in which female animals experience problems during
parturition
Loss of libido The condition in bulls characterized by absence of sex drive
A feed flow A feed flow program is a strategic plan for a livestock farmer to
program ensure the availability of feed to meet the animals' needs
throughout the year.
Chronic diseases Chronic diseases are long-lasting and occur repeatedly in the same
animal.
Scrotum The scrotum is a protective bilobed sac that encloses and protects
the testis.
Placenta The placenta is a vascular membranous organ that brings the blood
of the mother and the foetus into close contact.
Implantation Implantation is the process when blastocyst attaches to the walls
of the uterus.
@Juffrou_Ansie
, Page 3 of 50
Animal nutrition
Feed components, types and supplements
The lower incisors of a pig
The lower incisors of the pig are almost horizontal and the lower jaw acts as a “shovel” for
food intake.
Parts into which the small intestine (number 2) is subdivided.
• Duodenum
• Jejenum
• Ileum
Digestive juices deposited in the small intestine
DBE/November 2021
• Gall
• Pancreatic juice
________________________________________________________________
Basic guidelines when transporting farm animals. (EC/SEPTEMBER 2023)
• Pregnant and injured animals should not be transported.
• Animals of different ages and sexes should be separated.
• Whistling and cracking of whips during transport on a road.
______________________________________________________________
The digestive tracts of farm animalsDBE/November 2020 & SACAI SEP 2022
@Juffrou_Ansie
, Page 4 of 50
____________________________________________________
The digestive tract of poultry(SACAI 2022)
The oesophagus (gullet) is a flexible tube that connects the mouth to the rest of the
digestive tract. It transports food from the mouth to the crop and from the crop to the
proventriculus.
@Juffrou_Ansie
