Agricultural Sciences Grade 12 P1 Eastern Cape Mock 2017 Memo

NATIONAL SENIOR CERTIFICATE GRADE 12 SEPTEMBER 2017 AGRICULTURAL SCIENCES P1 MARKING GUIDELINE MARKS: 150 This marking guideline consists of 7 pages.

2 AGRICULTURAL SCIENCES P1 (EC/SEPTEMBER 2017) SECTION A QUESTION 1 1.1 1.1.1 D √√ 1.1.2 B √√ 1.1.3 C √√ 1.1.4 C √√ 1.1.5 D √√ 1.1.6 A √√ 1.1.7 C √√ 1.1.8 A √√ 1.1.9 B √√ 1.1.10 A √√ (10 × 2) (20) 1.2 1.2.1 B only √√ 1.2.2 A only √√ 1.2.3 B only √√ 1.2.4 Both A and B √√ 1.2.5 None √√ (5 × 2) (10) 1.3 1.3.1 Ad lib √√ 1.3.2 Topical √√ 1.3.3 Bunching √√ 1.3.4 An-oestrus/sub-oestrus √√ 1.3.5 Semen √√ (5 × 2) (10) 1.4 1.4.1 Amylase √ 1.4.2 Optimum √ 1.4.3 Leydig √ 1.4.4 Resorption √ 1.4.5 Implantation √ (5 × 1) (5) TOTAL SECTION A: 45 Copyright reserved Please turn over

(EC/SEPTEMBER 2017) AGRICULTURAL SCIENCES P1 3 SECTION B QUESTION 2: ANIMAL NUTRITION 2.1 2.1.1 Cattle/Sheep/Goat √ (1) 2.1.2 (a) A√ (1) (b) B√ (1) (c) A√ (1) 2.1.3 Presence of leaves √ where food particles are grinded finely √ (2) 2.1.4 Presence of rumen micro-organisms √ which break down cellulose√ into volatile fatty acids √ (3) 2.2 2.2.1 Protein rich roughage √ Lucerne hay √ Carbohydrate rich roughage √ oat hay √ (4) 2.2.2 Maize meal √ (1) 2.2.3 Ration cannot be fed to pigs √ (1) 2.2.4 Ration contains urea √ which cannot be digested by pigs. √ (2) 2.3 2.3.1 Non-ruminant √ (1) 2.3.2  Crude fibre √ was poorly digested √  High/73% √ of crude fibre was excreted √ (Any 1) (2) 7 𝑘𝑔 − 4 𝑘𝑔 2.3.3 × 100 √ = 42,8 % √ (2) 7 𝑘𝑔 2.3.4 Only 42,8 % of feed √ has been digested and absorbed √ (2) 2.4 2.4.1  Roughage have a higher crude fibre content √  Concentrates have low crude fibre √ (2) 2.4.2  Roughage – less than 60% TDN √  Concentrates – More than 60% TDN √ (2) 2.5 2.5.1 15 t/ha × 19,6 (ha) √ = 294 tons √ (2) 2.5.2 August √ (1) 2.5.3  Feed required is 65t and feed available is 35t √√  There is a shortage of 30t √√ (Any 1) (2) 2.5.4 56 + 60 + 85 √ = 201 tons √ (2) [35] Copyright reserved Please turn over

4 AGRICULTURAL SCIENCES P1 (EC/SEPTEMBER 2017) QUESTION 3: ANIMAL PRODUCTION, PROTECTION AND CONTROL 3.1 3.1.1 A: Extensive production system √ B: Intensive production system √ (2) 3.1.2 A: Few animals in a large space/low stocking density √ B Many animals in small space/high stocking density √ (2) 3.1.3 A Extensive production system: Subsistence farming √ B Intensive production system: Commercial farming √ (2) 3.1.4  Nutrition/feeding √  Environment √  Breeding/reproduction √  Management √ (Any 2) (2) 3.2 3.2.1 Crush √ (1) 3.2.2  Administration of medication/dipping/dosing √  Determining the age of animal √  Normal management programme (dehorning/docking/castration/marking) √  Pregnancy testing √  Transportation √ (Any 2) (2) 3.2.3  High solid sides √  Narrow and curved √  Wide and straight to provide clear path √ (Any 2) (2) 3.3 3.3.1 Always have a red flag √ (1) 3.3.2 Should be in possession of a permit √ (1) 3.3.3 Loading ramp √ (1) 3.4 3.4.1 A Bacterial √ B Blisters on the tongue ,nose, lips in the mouth √ C Protozoan √ D Bont tick √ E Ringworm √ (5) 3.4.2 Notifiable √ (1) 3.4.3 Foot-and-mouth disease √ (1) 3.4.4  Restricting the movement of animals/control measures√  Quarantine the affected animals √  Vaccination programmes/Veterinary services √  Import bans √  Legislation √ (Any 2) (2) Copyright reserved Please turn over

(EC/SEPTEMBER 2017) AGRICULTURAL SCIENCES P1 5 3.5 3.5.1 Internal parasite/endoparasite √ (1) 3.5.2 Liver fluke √ (1) 3.5.3 Snail √ (1) 3.5.4 Animal get infested during grazing √ (1) 3.5.5 Anaemia/fasciolosis √ (1) 3.5.6  Rotation grazing/resting veld √  Avoiding wet places during grazing √  Allow animals to graze on clean pastures √  Integrated pasture management √ (Any 2) (2) 3.6 3.6.1  Excessive salivation √  Increased thirst √  Vomiting and regurgitation √  Constipation √  Aggressiveness √  Hypersensitivity to touch √  Red and dry mucous membranes of mouth √  Increased urination and defecation √  Abnormal pain and diarrhoea √ (Any 1) (1) 3.6.2  Provision of fresh water in small amounts at short intervals √  Give young animals isotonic saline solution/hypertonic dextrose √  Remove the source of salt poisoning √ (Any 2) (2) [35] Copyright reserved Please turn over

6 AGRICULTURAL SCIENCES P1 (EC/SEPTEMBER 2017) QUESTION 4: ANIMAL REPRODUCTION 4.1 4.1.1 Identical twin √ (1) 4.1.2 They are formed from the fertilisation of one egg cell by one sperm cell √ (1) 4.1.3 (a) Gender They are of the same sex √ (1) (b) Physical appearance They are identical √ (1) 4.1.4 Hailurodinase √ (1) 4.1.5 Ovum stage √ (1) 4.2 4.2.1 Table showing number of cows in oestrus during different time period Number of cows Time 25 06:00 – 12:00 10 12:00 – 18:00 20 18:00 – 00:00 45 00:00 – 06:00 Marking table with the following checklist: Yes: No: Criteria 1 mark 0 mark 1. Table 1 0 2. Labelling: No. of cows 1 0 3. Labelling: Time 1 0 4. Data correctly captured (time and no .of 2 0 cows) 5. Correct heading 1 0 (6) 4.2.2 06:00–08:00 √ (1) 4.2.3 It is 12 hours √ after oestrus signs have disappeared √ (2) 4.3 4.3.1 Oogenesis primary oocytes √ Spermatogenesis primary spermatocytes √ (2) 4.3.2 Oogenesis ootids √ Spermatogenesis primary spermatids √ (2) 4.3.3 Oogenesis ovary √ Spermatogenesis testicles/testes √ (2) 4.4 4.4.1 Vas deferens/seminal tube √ (1) 4.4.2 Prostate gland √ (1) 4.4.3 Epididymis √ (1) Copyright reserved Please turn over

(EC/SEPTEMBER 2017) AGRICULTURAL SCIENCES P1 7 4.5 4.5.1 Dystocia √ (1) 4.5.2  Deviation of the head √  Flection of the elbow √  Retention of one or both forelegs √  Hydrocephalus √  Congenital defects √  Posterior presentation/position and posture √  Torsion of the uterus √ (Any 2) (2) 4.6 4.6.1 Cloning √ (1) 4.6.2 Sheep 1 Donor √ Sheep 2 Recipient √ (2) 4.6.3 A Reproductive cloning √ B Therapeutic cloning √ (2) 4.6.4 For the production of medicines to treat different diseases √ (1) 4.6.5  High quality products ( meat, wool, et cetera) √  Farmers farm with best animals with desirable characteristics √  Animals can be bred for disease resistance thus, decreasing the cost of treatment √  Extinct and endangered species can be revived √  One female can produce many clones √ (Any 2) (2) [35] TOTAL SECTION B: 105 GRAND TOTAL: 150 Copyright reserved Please turn over