Agriculture
Instructions:
- Answer all the questions in the spaces provided
Questions
- Differentiate between feedstuff and feed (2mks)
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- Name three sources of water in the animal body (3mks)
- List four functions of water in an animal (4mks)
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- What is a parasite? (1mks)
- Give four effects of parasites in livestock (4mks)
- Name two categories of parasites. (2mks)
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- What is the meaning of the term predisposing factors as used in livestock health? (1mk)
- List four pre-disposing factors of diseases in livestock. (4mks)
- Name any three types of vegetables. (3mks)
- Differentiate between monocropping and intercropping. (2mks)
- Define crop rotation (1mk)
- Name four signs of heat in a cow (4mks)
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- Differentiate between a nursery bed and a seedbed. (2mks)
- Give four factors considered when siting a nursery (5mks)
- Give an example of a crop in which the following vegetative propagation material are used (4 mks)
- Splits:
- Slips:
- Stem tubers:
- Stem cutting
- State four reasons for preparing land before planting (4mks)
- Name two categories of plant nutrients (2mks)
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- What is soil sampling? (1mk)
- State two soil sampling methods (2mks)
- Give four characteristics of nitrogenous fertilizers (4mks)
- List five commonly kept records in a farm (5mks)
- Name five factors considered when selecting a breeding stock (5mks)
- List five biotic factors affecting agricultural production (5mks)
Marking Scheme
AGRICULTURE
- Differentiate between feedstuff and feed (2mks)
- Feedstuff – is a food material containing one or more nutrients
- Feed- a mixture of several feedstuffs which supply the required nutrients to animal
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- name three sources of water in the animal body (3mks)
- From drinking (free water)
- From food (bound water)
- From metabolism (metabolic water)
- list four functions of water in an animal (4mks)
- It’s a component of the animal body fluids
- Transportation of nutrients
- Make cell turgid, maintain shape of the body cellUsed in biochemical reaction in the body
- Regulate body temperature by sweating
- Help in excretion of waste product from the body
- Form part of the animals’ product
- name three sources of water in the animal body (3mks)
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- what is a parasite? (1mks)
- Is a living organism that lives in or on another organism and derives some benefits from the organism without being useful to if in any way
- Is a living organism that lives in or on another organism and derives some benefits from the organism without being useful to if in any way
- give four effects of parasites in livestock (4mks)
- Cause anemia
- Deprive the host animal of food
- Injury and damage to tissue and organs
- Disease transmission
- Cause irritation
- Obstruction to internal organs
- what is a parasite? (1mks)
- Name two categories of parasites. (2mks)
- External parasites/ectoparasitesInternal parasites/endoparasites
- External parasites/ectoparasitesInternal parasites/endoparasites
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- What is the meaning of the term predisposing factors as used in livestock health? (1mk)
- Conditions inside or outside the body of an animal which lead to the animal contracting a disease.
- Conditions inside or outside the body of an animal which lead to the animal contracting a disease.
- List four pre-disposing factors of diseases in livestock. (4mks)Species of the animal
- Breed of the animal
- Age of the animal
- Sex of the animal
- Colour of the animal
- What is the meaning of the term predisposing factors as used in livestock health? (1mk)
- Name any three types of vegetables. (3mks)
- Leaf vegetable
- Root vegetable
- Fruit vegetable
- Pod vegetable
- Stem vegetable
- Bulb vegetables
- Differentiate between monocropping and intercropping. (2mks)
- Monocropping –Practice of growing one type of crop in a farm
- Intercropping- Practice of growing two or more crops in the same field at the same time
- Define crop rotation (1mk)
- Growing of different types of crops or crops of different families on same piece of land in an orderly
- Growing of different types of crops or crops of different families on same piece of land in an orderly
- State four reasons for preparing land before planting (4mks)
- To kill weeds
- Incorporate manure and other organic matter into the soil
- Destrory different stages of crop pests
- Aerate the soil
- Encourage the penetration of roots in the soil
- Make subsequent operations possible
- Encourage water infiltration into the soil
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- Differentiate between a nursery bed and a seedbed. (2mks)
- Nursery bed - Special seed bed prepared for raising seedings before transplanting.
- Seedbed: is a piece of land prepared ready to receive planting materials
- Give four factors considered when siting a nursery (5mks)
- Nearness to the source of waterType of soil
- TopographyPrevious cropping
- Security
- Well sheltered place
- Differentiate between a nursery bed and a seedbed. (2mks)
- Give an example of a crop in which the following vegetative propagation material are used (4 mks)
- splits: grasses pyrethrum
- slips: pineapple
- stem tubers: irish potatostem cutting: napier grass, sugar-cane, tea cassava
- Name four signs of heat in a cow (4 mks)
- RestlessnessMounting others and when mounted on, it stands still
- Slight rise in body temperature
- In lactating cows, milk yield drops slightly
- Vulva swells and becomes reddish
- Clear or slimy mucus from the vigina
- Bellowing or moving frequently
- Name two categories of plant nutrients (2mks)
- Macro- nutrients
- Micro- nutrients
- What is soil sampling (1mk)
- Process of taking a small quantity of soil from the field to act as representative sample of the soil in that particular field.
- Process of taking a small quantity of soil from the field to act as representative sample of the soil in that particular field.
- state two soil sampling methods (2mks)
- Traverse
- Zigzag
- Give four characteristics of nitrogenous fertilizers (4mks)
- Highly soluble
- Easily leached
- Short residual effect
- Have scorching/ burning effect on plants
- Highly volatile
- Hygroscopic
- Highly corrosive
- List five commonly kept records in a farm (5mks)
- Production record
- Inventory records
- Field preparation records
- Breeding records
- Feeding records
- Health records
- Marketing records
- Labor records
- Name five factors considered when selecting a breeding stock (5mks)
- Age
- Level of performance
- Physical fitness
- Body conformation
- Temperature or behavior
- Quality of products
- Mothering ability
- Adaptability
- Prolificacy
- List five biotic factors affecting agricultural production (5mks)
- Pest
- Parasites
- Decomposers
- Pathogen
- Predators
- Pollinators
- Nitrogen fixing bacteria
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