Agricultural Sciences Memo 1 (English)

November 2015 — Grade 12 / Matric — Agricultural Sciences

Memo 2015 Grade 12 English Agricultural Sciences Hub →

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🎯 150 marks 📄 9 pages 📝 65 items found 📚 2 topics 🔑 1 key info

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Q1— Section header —

1.1.10(10 x 2\ (20\

1.2.5only A only oth A and B B only None (5 x 2\ (10\

1.3.5Bile Insulation /ventilation Vector Dystocia Impotence (5 x 2\ (10\

1.4.5Fodder flow /feed flow Free range /semi intensive/backyard Per a cute

Q2— Section header —

2.1Diagram of a digestive system

2.1.1Identify the type of farm animal Monogastric animal ruminant animal (1\

2.1.2Motivation

Q2— Section header —

2.1.3Identification of the letters (a\ (b\ (c\ (3\

2.1.4Reasons for NOT feeding roughage Monogastric/simple stomach cellulose digesting microbes /flora Cannot digest roughage

2.2Water, vitamins and minerals

2.2.1Functions of water Acts as a s olvent ssists in the absorption of nutrients Protects some sensitive tissue/s erves as a l ubricant Moist urising

2.2.2Vitamin/mineral deficiencies (a\ Vitamin D/Calcium/Ca/ hosphorus/P /Copper/Cu (b\ Vitamin A /retinol (c\

2.3Digestibility co efficiency

2.3.1Calculation: 8% (0,08\ x 30 kg = 2,4 kg Dry material: 30 kg 2,4 kg = 27,6 kg DC = Dry material intake (kg\ Dry mass of manure (kg\

2.3.2Processes to improve digestibility of feeds Mechanical processes rinding /milling rushing olling Pell eting

2.4Pearson square

2.4.1Calculation: Maize 9 /27 parts Peanut oilcake 44% /8 parts (3\

2.4.2

2.5Feed and supplement supply

2.5.1Months when there was sufficient veld fodder December January (2\

2.5.2Justification No supplementation during the two months Only veld fodder was used during the two months (Any 1\

2.5.3Reasons for introducing a concentrate Animals are prepared/f attened /rounding off for the market Getting animals ready for breeding For the lambing season

2.5.4Calculat ion of the fodder for January: (a\ 3,4 tons x 1 000 = 3 400 kg (b\ 50 sheep x 2 kg intake per sheep x 31 days = 3 100 kg (1\

3.1Production systems

3.1.1Production systems Extensive Intensive (2\

3.1.2Comparison of the two systems Extensive Intensive Environment No/limited/less control Environment is modified or controlled for production purposes

3.1.3Reason for keeping cattle in the facility Higher productivity/output/efficiency An environment f or feeding/nutrition protection/control Any 1\ (1\

3.2Farm animals loosing heat

3.2.1Ways in which animals lose heat Radiation /evaporation /perspiration Conduction Excretion /defecation (3\

3.2.2Other ways of heat loss Convection Movement /work Production level Urination Breathing (Any 2\ (2\

3.2.3Signs of heat stress in animals Excessive s alivation /drooling Drop /decrease in production Excessive p

3.2.4Management practice to reduce heat in A Provision of shelter/shade cool area Breeding of heat adapting animals Use of mechanical c ooling system Work calmly with animals Access to

3.3Pulse and respiratory rate of farm animals Line graph of the pulse and respiratory rate of farm animals 0102030405060708090Cattle Horse Sheep Goat Pig

3.4Vaccination plan

3.4.1Appropriate words/terms for letters to Anthrax Cattle/sheep/goats Protozoa Cattle/sheep/goats Blisters on the tongue/nose/lips/mouth/teats/udder/ between the toes/around hooves

3.4.2Vector for edwater Ticks (1\ Control of parasites Appropriate method used to administer remedies

3.5.3Dosing /drenching/injectin g/provision of licks ping/spraying /spot treatment/ injecting Cleaning/apply ointments/medication/apply insecticides/dip ping

4.1Embryo development

4.1.1Stages of parturition as in pictures A and B Ejection/expulsion Preparatory (2\

4.1.2ncorrect po sture of the calf Picture B Reason Retention of o ne leg towards the vulva/second leg is folded back

4.1.3Letter that correspond s with the following activities (a\ (b\ (c\ (1\ (1\ (1\

4.1.4Behavioural changes Restlessness/walks around in pain and discomfort Loss of appetite Isolation/nest ing behaviour Tail raising Lows often

4.2Graph that represents hormones in the oestrus cycle of a cow

4.2.1Definition of oestrus cycle Hormonally controlled cycle of activity of the female reproductive organs Recurring periods of oestrus alternating with sexual rest in the

4.2.2Range of days in which progesterone level is the highest From day 9/10 to day 15/ (indicate any two days within the range\ (1\

4.2.3Reason for the drop in the level of FSH between days 2 and 3 Oestrogen levels is at its peak/high/went up (1\

4.2.4Reason for the increased progesterone levels day s3 and Fertilisation has taken place Corpus luteum has been formed (Any 1\ (2\

4.2.5Influence of oestrogen on LH Oestrogen stimulates the release of LH (1\

4.2.6The structure where prolactin is produced Pituitary gland/ Hypophysis (1\

4.3Detection of oestrus The device to which each of the following statements apply:

4.3.3

4.4Diagrams that represents a reproductive process

4.4.1Reproductive process Cloning nuclear transfer (1\

4.4.2Definition of cloning A process through which an identical copy of the donor animal is produced from its nucleus (2\

4.4.3Description of stage B Removal of the nucleus (1\

4.4.4Aims of cloning Produce large numbers of genetically identical animals Production of offspring from a higher quality animal Preservation of superior genetics /characteristics ncrease the population size

4.5Diagram on ogenesis

4.5.1Type of process Oogenesis/ovigenesis (1\

4.5.2Type of cell division Mitosis (1\

4.5.3Explanation for meiotic division To form haploid cells/gametes (1\

4.5.4End products of division of oogenesis and spermatogenesis (a\ Ova/egg cells (b\ Spermatozoa/sperm cells (1\ (1\

4.5.5The organ where the following are found (a\ Testis (b\ Ovary (1\ (1\ [35] TOTAL SECTION B:35

Topics Identified

Animal ProductionAgricultural Management

Mark Allocation

Total150 marks

Sections35 + 35 + 35 = 105 marks

Key Information

Contact Number0102030405

Paper information

SubjectAgricultural Sciences

Year2015

SessionNovember

TypeMemo

PaperPaper 1

LanguageEnglish

Pages9

Downloads6

Examination context

Decade2010s

Years ago11y

SeasonSpring (SH)

Start dayThursday

Exam periodNovember 2015

Days since exam4,008

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