Agricultural Sciences Grade 12 P1 Eastern Cape Mock 2016 Memo

NATIONAL SENIOR CERTIFICATE GRADE 12 SEPTEMBER 2016 AGRICULTURAL SCIENCES P1 MEMORANDUM MARKS: 150 This memorandum consists of 6 pages.

2 AGRICULTURAL SCIENCES P1 (EC/SEPTEMBER 2016) SECTION A QUESTION 1 1.1 1.1.1 C √√ 1.1.2 B √√ 1.1.3 A √√ 1.1.4 A √√ 1.1.5 D √√ 1.1.6 A √√ 1.1.7 C √√ 1.1.8 B √√ 1.1.9 A √√ 1.1.10 D √√ (10 x 2) (20) 1.2 1.2.1 None √√ 1.2.2 B only √√ 1.2.3 A only √√ 1.2.4 B only √√ 1.2.5 Both A and B √√ (5 x 2) (10) 1.3 1.3.1 Pancreas √√ 1.3.2 Stock density √√ 1.3.3 Virus √√ 1.3.4 Impotence √√ 1.3.5 Concentration √√ (5 x 2) (10) 1.4 1.4.1 Urea √ 1.4.2 Conduction √ 1.4.3 Mesoderm √ 1.4.4 Posture √ 1.4.5 Bulbo-urethral/Cowpers gland √ (5 x 1) (5) TOTAL SECTION A: 45 SECTION B QUESTION 2: ANIMAL NUTRITION 2.1 2.1.1 Non-ruminant/monogastric √ (1) 2.1.2 Single/Simple stomach/Monogastric √ (1) 2.2 2.2.1 C√ (1) 2.2.2 D√ (1) 2.2.3 F√ (1) 2.2.4 I√ (1) 2.2.5 E√ (1) 2.3 2.3.1 It is highly soluble than biuret. √ (1) 2.3.2 Avoid keeping the lick in rain. √ (1) 2.3.3 A mixture of 2 kg urea and 20 kg molasses be sprayed on grazing √ Use of premixed fodders/mixtures/stock licks √ (2) Copyright reserved Please turn over

(EC/SEPTEMBER 2016) AGRICULTURAL SCIENCES P1 3 2.4 2.4.1 Only abomasum is functioning √ Rumen/reticulum/omasum still underdeveloped √ Oesophogal groove transport milk to the abomasum √ (Any 2 x 1) (2) 2.4.2 When the calf starts eating solid food/starts grazing √ (1) 2.4.3 Enable to digest cellulose √ Hydrolyse protein √ Synthesis of vitamins √ Synthesis of amino acids √ (Any 2 x 1) (2) 2.5 2.5.1 DE of 5 kg DM intake = Gross Energy – energy lost in faeces = 92,5 J – 42,5 J√ = 50 J √ (2) 2.5.2 Nett energy = Metabolic energy – Energy lost as heat Metabolic energy = 50 J – 18,5 J = 31,5 J √ Nett energy = Metabolic energy – Energy lost as heat = 31,5 J – 9 J √ = 22,5 J √ NB: Learners may use different ways/formula to arrive at 22,5 J, e.g. NE = GE – energy lost in faeces – energy lost in urine and gases – heat loss OR NE = DE – energy lost in urine + gases – heat loss (3) 2.6 Percentage of feed mixture Ratio of Maize meal : peanut oilcake meal = 22 : 7,5 22 + 7,5 = 29,5 √ √ √ (3) 2.7 2.7.1 Concentrate requirement = kg/day = 42 kg/cow/day √ = 42 kg × 30 days × 100 cows √ = 126 000 kg (126 tons) √ (3) 2.7.2 Feed supply = 650 kg × 30 × 6 = 117 000 kg √ Feed required = 100 × 60 kg × 30 = 180 000 kg p/month × 6 = 1 080 000 kg √ = Feed supply – Feed required = 117 000 kg –1 080 000 kg = -963 000/1 000 √ = -963 tons √ (4) 2.7.3 Not enough √ - pasture has a shortage of 963 tons √ (2) 2.8 2.8.1 Tranquillisers √ (1) 2.8.2 Antibiotics √ (1) [35] Copyright reserved Please turn over

4 AGRICULTURAL SCIENCES P1 (EC/SEPTEMBER 2016) QUESTION 3: ANIMAL PRODUCTION, PROTECTION AND CONTROL 3.1 3.1.1 A Feeding shed √ B Holding pen √ (2) 3.1.2 (a) Holding pen / B √ (1) (b) Feeding shed / A √ (1) 3.1.3 Give cows time to pick up their calves before moving √ Cows and calved should be moved slowly √ Avoid trying to work cows and calves with dogs √ (3) 3.2 3.2.1 To warn animals of your presence √ (1) 3.2.2 Makes them feel insecure √ (1) 3.2.3 Allow animals to establish social groups √ (1) 3.3 3.3.1 D√ (1) 3.3.2 C√ (1) 3.3.3 A√ (1) 3.3.4 B√ (1) 3.4 Subsistence Commercial 3.4.1 Purpose Produce only enough to feed Produce to sell for a the family √ profit √ (2) 3.4.2 Management Limited as only few animals Intensive to ensure and crops produced √ increased production √ (2) 3.5 3.5.1 A Chronic √ B Very sudden/develops within an hour/weeks √ C Acute √ D Deadly √ (4) 3.5.2 Anthrax √ (1) 3.5.3 Burn the carcass √ Do not cut open the animal carcass √ Burry carcass deep in the ground √ (Any 2 x 1) (2) 3.6 3.6.1 Nasal worm √ (1) 3.6.2 (a) C√ (1) (b) A/B √ (1) 3.6.3 Summer √ (1) 3.6.4 Sneezing and nasal irritation √ Yellow nasal discharge √ Shaking of head to get rid of the parasite √ (3) Copyright reserved Please turn over

(EC/SEPTEMBER 2016) AGRICULTURAL SCIENCES P1 5 3.7 3.7.1 Proper hygiene standards in abattoirs √ (1) 3.7.2 Quarantine of imported animals at ports of entry √ (1) 3.7.3 Reporting any suspicion of the disease √ Eradication programs √ Immunisation campaigns √ (Any 1) (1) [35] QUESTION 4: ANIMAL REPRODUCTION 4.1 4.1.1 Embryo transfer √ (1) 4.1.2 Prostglandin injection √ Gonadotropin - release hormone √ (2) 4.1.3 A Donor √ (1) 4.1.4 37 °C √ (1) 4.1.5 (a) Their reproductive cycle is extended to produce more progeny √ (1) (b) More profit from selling superior animals √ (1) 4.2 4.2.1 A Oestrus √ B Di-oestrus √ C Met-oestrus √ D Pro-oestrus √ (4) 4.2.2 (a) A√ (1) (b) C√ (1) 4.3 4.3.1 B vas deference √ D scrotum√ F seminal vesicle √ (3) 4.3.2 Hypoplasia √ Cryptochidism √ Sperm defects √ (Any 2 x 1) (2) 4.4 4.4.1 Exhaustion/Fatigue √ (1) 4.4.2 Malnutrition √ (1) 4.4.3 Lack of experience √ (1) 4.4.4 Temperament √ (1) Copyright reserved Please turn over

6 AGRICULTURAL SCIENCES P1 (EC/SEPTEMBER 2016) 4.5 4.5.1 Milk yield of group 1 and 2 over 25 weeks 40 Milk yield (l) 20 Group 0 1 1 5 7 10 15 20 25 Group Weeks (Time) 2 Marking graph with the following checklist: Criteria Yes: 1 mark No: 0 mark 1 Line graph 1 0 2 Y-axis labelled 1 0 3 X-axis labelled 1 0 4 Points correctly labelled in group 1 and group 2 1 0 5 Correct heading 1 0 6 Units (and time) 1 0 (6) 4.5.2 Milk yield increases drastically in week 7 and drops from week 15 to week 20. √ OR For both groups milk yield increases from week 1 to week 7 and then it decreases after week 7 until week 25. (1) 4.6 4.6.1 C√ allantois √ (2) 4.6.2 F√ placenta √ (2) 4.6.3 B√ chorion/embryonic sac √ (2) [35] TOTAL SECTION B: 105 GRAND TOTAL: 150 Copyright reserved Please turn over