WorksheetsAgri-Fishery Arts Part 2 - Final Examination (Multiple Choice)
Total questions: 100
Worksheet time: 33mins
A farmer wants to explain to his students the origin of domesticated chickens. Which ancestral bird should he correctly identify?
Jungle Hen
Red Jungle Fowl
Guinea Fowl
Wild Turkey
Why did poultry production expand rapidly during the mid-20th century?
Increase in backyard farming
Discovery of organic feeds
Industrialization and specialization
Decline in red meat consumption
What factor primarily drives the global growth of the poultry industry today?
Cultural preference
Affordable, high-quality protein demand
Government subsidies
Export restrictions
Why is the Philippine poultry industry considered resilient despite challenges?
Exclusive reliance on imports
Dependence on one production system
Combination of commercial and backyard farms
Minimal disease exposure
How do genetic improvements benefit modern poultry production?
Reduce housing costs
Improve egg shell color
Enhance growth rate and yield
Eliminate need for vaccines
Why are poultry houses commonly oriented east–west?
To maximize wind flow
To reduce construction cost
To minimize direct sun exposure
To increase humidity
A farmer notices high disease incidence in his flock. Which housing benefit is most directly compromised?
Management efficiency
Disease control
Theft prevention
Egg collection
Why should poultry farms be located away from residential areas?
To improve feed conversion
To reduce disease transmission and complaints
To increase labor availability
To ensure access to electricity
Why is slightly elevated terrain preferred for poultry farms?
Better feed storage
Increased ventilation
Prevention of flooding
Easier waste disposal
Why is maintaining 32–35°C critical during the brooding period?
To prevent dehydration
To stimulate egg production
To support early chick development
To reduce feed consumption
What is the primary function of a brooder guard?
Prevent disease spread
Keep chicks near heat and feed
Reduce noise
Separate sick chicks
When birds are transferred to a growing house, what becomes the main management concern?
Egg size
Skeletal and muscular development
Incubation success
Hatchability
Why is space requirement increased as birds grow older?
To improve feather color
To reduce stress and cannibalism
To lower feed cost
To control lighting
How does light management affect rearing layers?
Improves immunity
Reduces mortality
Controls sexual maturity
Increases hatchability
Why must poultry obtain essential nutrients from feed?
They digest slowly
They cannot synthesize them adequately
Feed is cheaper
Supplements are optional
Which factor MOST influences nutrient requirements of poultry?
Feather color
Housing material
Why is corn commonly used in poultry diets?
High vitamin content
Protein source
Energy source
Mineral supplement
What is the importance of knowing the nutrient composition of feedstuffs?
To reduce labor
To improve egg color
To formulate balanced diets
To prevent theft
Why are starter, grower, and finisher feeds formulated differently?
To reduce waste
To meet changing nutrient needs
To simplify feeding
To control water intake
Why do breeds “breed true to type”?
Due to random mating
Because traits are heritable
Due to artificial incubation
Because of climate adaptation
What is the main goal of managing commercial chicken breeders?
Increase meat flavor
Optimize fertility and productivity
Reduce housing cost
Eliminate vaccination
Why is artificial insemination used in poultry?
To reduce egg size
To improve genetic selection and fertility
To replace vaccination
To shorten incubation
Why must fertile eggs be disinfected before incubation?
To increase egg weight
To improve shell thickness
To eliminate harmful bacteria
To speed up hatching
Why is strict hatchery sanitation essential?
To reduce electricity use
To prevent disease transmission
To increase egg size
To improve feed intake
Why is ventilation critical in broiler houses?
To reduce noise
To remove ammonia and heat
To increase humidity
To reduce feed intake
How does stress management affect broiler production?
Slower growth
Higher mortality
Faster and healthier growth
Increased disease
Why are broilers regularly weighed and graded?
To determine market price
To check feather quality
To ensure growth uniformity
To schedule vaccination
What is the primary goal in managing replacement pullets?
Early slaughter
High body fat
Uniform readiness for laying
Reduced feed intake
Why is light stimulation important in layers?
Controls molting
Triggers egg production
Improves shell color
Reduces cannibalism
Why are ducks required to have water deep enough to dunk their heads?
For swimming
To clean nostrils and eyes
To cool body temperature
To stimulate laying
Why are native chickens commonly raised in free-range systems?
High feed efficiency
Faster growth
Adaptation to local conditions
Larger egg size
What is the main advantage of raising geese?
High egg production
Natural weed control
Fast growth rate
Cage adaptability
Why are incubators essential in quail production?
Long incubation period
Poor fertility
Lack of natural brooding behavior
High chick mortality
Why are pigeons harvested as squabs at 26–30 days old?
Maximum egg production
Before they can fly
Highest feed intake
Strong immune system
Why is Newcastle Disease considered dangerous in poultry farms?
Affects feathers only
Causes slow growth
Why is PCR useful in disease diagnosis?
Detects antibodies
Identifies parasites
Detects genetic material of pathogens
Measures growth rate
Why is limiting visitor access a biosecurity measure?
Reduce labor cost
Improve productivity
Prevent disease introduction
Increase privacy
Why is vaccination given early in life, such as for Marek’s Disease?
Reduce feed cost
Develop early immunity
Improve growth rate
Increase egg size
Why is the “all-in, all-out” system recommended?
Saves labor
Prevents age-related disease transfer
Improves ventilation
Increases stocking density
Why does organic poultry farming avoid routine antibiotic use?
Reduce labor
Improve taste
Prevent antimicrobial resistance
Increase growth rate
How does composting poultry waste support sustainability?
Increases odor
Produces natural fertilizer
Raises feed cost
Attracts pests
What do animal welfare standards primarily aim to ensure?
Maximum profit
Faster growth
Humane treatment of birds
Reduced housing cost
Why is overcrowding considered an ethical concern?
Increases egg size
Causes stress and disease
Reduces water intake
Improves feed efficiency
How does ethical poultry production affect consumers?
Higher mortality
Reduced transparency
Improved trust and food safety
Lower productivity
Why is backyard poultry keeping popular in urban areas?
Requires expensive equipment
Provides fresh eggs and education
High commercial output
Needs large land area
How does free-range housing support animal welfare?
Restricts movement
Encourages natural behavior
Reduces egg production
Increases disease risk
Why are consumers increasingly choosing ethically produced poultry products?
Lower price
Attractive packaging
Awareness of welfare and safety
Longer shelf life
Why is sustainable poultry production economically viable?
High mortality rate
Reduced productivity
Balanced environmental and financial benefits
Increased chemical use
Why is poultry production important to families and communities?
Entertainment value
Cultural tradition only
Food security and livelihood
Export dependence
A fisheries student explains that tilapia were first introduced to the Philippines in 1950. Which species was introduced first?
Nile tilapia
Red tilapia
Mozambique tilapia
Blue tilapia
Why did early promotion of Mozambique tilapia farming fail in the Philippines?
It was disease-prone
It required cold water
It did not reach preferred market size
It required marine cages
Why did tilapia farming become popular in the 1970s?
Introduction of hybrid tilapia
Importation of feeds
Introduction of Nile tilapia
Expansion of marine cages
Why did red tilapia gain popularity among Filipino-Chinese consumers?
Faster growth
Better taste
Attractive red coloration
Lower production cost
A farmer wants fast-growing and hardy fish suitable for tropical conditions. Which tilapia species should be recommended?
Blue tilapia
Mozambique tilapia
Nile tilapia
Black-chinned tilapia
Why were genetically improved tilapia strains like GIFT developed?
To improve coloration
To enhance growth performance
To reduce salinity tolerance
To increase bone content
Why are genetically improved tilapia strains sold at higher prices?
They require imported feeds
They grow slower
They have better production traits
They are rare in the wild
Why is GMT tilapia preferred in commercial grow-out systems?
It tolerates cold water
It produces larger eggs
It prevents early breeding
It requires no feeding
Why is genetic improvement of tilapia stocks in Africa restricted?
To reduce costs
To avoid genetic contamination
To improve exports
To increase biodiversity
Why is pond culture the most common tilapia farming method in the Philippines?
Requires seawater
High construction cost
Suitable for available land and water
Needs advanced technology
Why is proper water pH important in tilapia culture?
Controls predators
Prevents oxygen loss
Maintains fish health
Improves flesh color
Why is net-cage farming ideal in lakes and reservoirs?
Requires no feeding
Allows free water circulation
Prevents disease completely
Reduces harvesting time
Why must net cages be cleaned regularly?
To increase fish color
To reduce feed cost
Why is aquaponics considered a sustainable system?
Produces only fish
Requires more chemicals
Integrates fish and vegetable production
Eliminates water use
Why is stress considered the main cause of disease outbreaks in tilapia?
It increases feeding rate
It weakens the immune system
It improves water quality
It reduces stocking density
A farmer observes darkened skin and pop-eye in fingerlings. Which disease is most likely involved?
Streptococcosis
Ammonia toxicity
Tilapia Lake Virus
Fungal infection
Why is ammonia toxicity dangerous to tilapia?
It increases appetite
It damages gills and blood
It improves growth
It enhances reproduction
Why is quarantine of new fish stocks recommended?
To improve feed conversion
To increase growth rate
To prevent disease introduction
To save space
Why should dead fish never be returned to open water?
It attracts predators
It spreads pathogens
It reduces oxygen
It affects taste
Why is harvesting considered a critical stage in tilapia farming?
It increases growth rate
It determines final product quality
It improves breeding
It reduces feed cost
Why do farmers stop feeding tilapia 1–2 days before harvest?
To save feed
To clean the digestive system
To increase fish size
To reduce handling time
According to SEAFDEC, what is the ideal market size of tilapia?
50–100 g
100–150 g
150–300 g
400–500 g
Why is gentle handling important during harvest?
To reduce labor
To prevent fish stress and spoilage
To increase weight
To improve color
Why is seine net commonly used in pond harvesting?
It prevents feeding
It drains the pond
It gathers fish efficiently
It increases oxygen
Why are harvested tilapia immediately sorted by size?
For breeding purposes
To meet different market demands
To reduce disease
To improve growth
Why is ice slurry used after harvesting?
To cook the fish
To improve flavor instantly
To slow bacterial growth
To increase fish weight
Why is rapid chilling considered humane?
It increases profit
It prevents feeding
It quickly lowers body temperature
It extends shelf life
Why are insulated containers used during transport?
To reduce odor
To maintain low temperature
To prevent theft
To increase moisture
Why does poor packaging lead to high spoilage?
Increased feeding
Lack of oxygen
Improper cooling and drainage
Excess salting
Why do fatty fish spoil faster even in ice?
They absorb water
Fat accelerates spoilage
They grow bacteria
They lose scales
Why is gutting fish before icing recommended?
Improves appearance
Reduces bacterial activity
Increases size
Enhances color
Why is salting done before drying fish?
To draw out moisture and inhibit bacteria
To increase weight
To enhance color
To make fish cook faster
Why must dried fish be protected from insects?
To reduce odor
To improve packaging
To prevent contamination
To enhance color
Why is partial freezing better than full freezing for sashimi?
Requires no ice
Preserves protein and flavor
Reduces transport cost only
Eliminates bacteria completely
Why is marketing considered half of tilapia farming success?
It replaces production
It connects fish to consumers
It reduces feeding
It improves breeding
Why does direct marketing give higher profits to farmers?
Fewer buyers
Lower demand
No middlemen involved
Higher transport cost
Why do value-added products increase income?
Reduce labor
Extend shelf life and market options
Lower production
Increase mortality
Why is attractive packaging important in tilapia marketing?
Improves growth
Attracts consumers
Reduces ice use
Prevents breeding
Why do farmers form cooperatives?
Reduce production
Set better prices and sell in bulk
Increase competition
Reduce quality
Why does lack of ice facilities affect tilapia marketing?
Low demand
Poor taste
Increased spoilage
Overproduction
Why is online selling becoming popular among tilapia farmers?
Requires no harvest
Expands market reach
Reduces quality
Increases middlemen
Why is cold storage important in marketing improvement?
Improves breeding
Reduces post-harvest losses
Lowers fish weight
Shortens shelf life
Why is government support important in tilapia marketing?
Controls prices
Provides direct buyers
Assists small farmers
Reduces production
Why do price fluctuations affect farmers during peak harvest?
Increased demand
Limited production
Oversupply in the market
High feed quality
Why does good harvesting protect a farmer’s investment?
Increases labor
Prevents quality loss
Improves breeding
Reduces fish size
Why is proper handling essential for consumer safety?
Improves color
Prevents spoilage and contamination
Increases growth
Enhances salinity
Why does efficient marketing strengthen the local economy?
Reduces competition
Creates jobs and income
Limits production
Increases imports
Why is tilapia farming considered sustainable?
Requires no feed
Fast growth and high demand
Needs no water
Eliminates waste
Why is good tilapia marketing described as “connecting people”?
Increases consumption
Links farmers, markets, and consumers
Reduces production
Improves breeding
A farmer notices high disease incidence in his flock. Which housing benefit is most directly compromised?
Management efficiency
Disease control
Theft prevention
Egg collection
Which flooring system is MOST suitable for deep litter housing?
Concrete only
Wire mesh
Slatted floor
Rice hull or wood shavings
