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close this bookThe Intensive Poultry Farming Industry in the Sahelian Zone (CDI, 1996, 56 p.)
View the document(introduction...)
close this folder1. INTENSIVE POULTRY FARMING IN THE SAHELIAN ZONE
View the document1.1. Introduction
close this folder1.2. General information on intensive poultry farming
View the document1.2.1. What is intensive poultry farming?
View the document1.2.2. Poultry - a living machine
View the document1.2.3. Choice of breed
View the document1.3. Criteria for assessing productivity in poultry farming
close this folder2. SUB-SETS OF INTENSIVE POULTRY FARMING
close this folder2.1. Preliminary remarks
View the document(introduction...)
View the document2.1.1. Housing
View the document2.1.2. Environmental requirements
View the document2.1.3. Poultry farming equipment
View the document2.1.4. Biosecurity
View the document2.1.5. Staff training
View the document2.2. The production of broilers
close this folder2.3. Feed manufacturing
View the document2.3.1. Balanced feeding
View the document2.3.2. Raw materials
View the document2.3.3. The feed milling plant
View the document2.3.4. Quality Control
View the document2.4. The hatchery
View the document2.5. Production of eggs for consumption
View the document2.6. The production of eggs for hatching
View the document2.7. The poultry abattoir
View the document2.8. Integration of the poultry industry
View the document2.9. The production of egg trays
close this folder3. QUESTIONNAIRE
View the document3.1. Evaluation indicators
View the document3.2. Market information
View the document3.3. Assessing raw material requirements
View the document3.4. Investment required
View the document3.5. Assessing the competition
View the document3.6. Integration in the poultry farming industry
close this folder4. SUPPLIERS TO THE POULTRY FARMING INDUSTRY
View the document4.1. Breed suppliers
View the document4.2. Suppliers of hatcheries
View the document4.3. Suppliers of abattoirs
View the document4.4. Suppliers of feed manufacturing plants
View the document4.5. Suppliers of premixes and/or vit/min concentrates
View the document4.6. Suppliers of poultry farming equipment
View the document4.7. Suppliers of equipment for egg trays
View the document4.8. Poultry farming fairs
View the document4.9. Professional training centres
View the document5. WORKS CONSULTED
View the document6. A TOOL FOR THE DEVELOPMENT OF INDUSTRIAL ENTERPRISES IN ACP COUNTRIES
View the documentFACILITIES IN SUPPORT OF THE CREATION, EXPANSION, DIVERSIFICATION, REHABILITATION OR PRIVATISATION OF INDUSTRIAL ENTERPRISES
View the documentTHE CDI'S ACP ANTENNAE NETWORK
View the documentBACK COVER

1.3. Criteria for assessing productivity in poultry farming

Intensive poultry farming uses different criteria for assessing productivity.

Growth

This may be expressed in average weight at a given age (in days or weeks), e.g. 1,700g at 63 days or 9 weeks.

Example: if average weight at 50 days is 1565g the ADG is 1565/50 or 31.3g per day (ADG = average daily gain).

Laying rate

Equals the number of eggs gathered per 100 laying hens.

Example: lot of 200 laying hens. 146 eggs gathered: laying rate is: 146 x 200/100 i.e. 73%.

Mortality rate

Equals the number of individuals dying when starting with 100 individuals.

Example: lot starting with 450 individuals, 400 remaining at 21 weeks. Mortality at 21 weeks is thus: (450-400) x 100/450 i.e. 11.1%.

The feed conversion rate (FCR for short)

- During the growth period (broiler or pullet).

This may be expressed in total amount of food consumed divided by the total weight of the stock, e.g.: a lot of 2,000 pullets consumes 7,300 kg of feed to reach a total weight of 3080 kg. The FCR is thus 7300/3080 i.e. 2.37.

It may be expressed by average feed consumption divided by the average weight of the stock, e.g. taking the preceding data, one may obtain 7300/2000 i.e. 3.65 kg average consumption and 3080/2000, i.e. 1.54 average weight. The FCR is thus 3.65/1.54 i.e. 2.37.

- During the laying period (layer or breeding stock).

This is expressed in quantity of feed consumed divided per dozen eggs gathered, e.g.: a lot of 450 hens lays 320 eggs and consumes 56 kg of feed. The FCR is 56/26.6 i.e. 2.1.

Fertility and hatching rates

These two parameters only apply to the rearing of breeding stock.

The fertility rate represents the number of fertile eggs per 100 eggs gathered. It gives an indication of the fertility of the breeding stock.

The hatching rate represents the number of chicks hatching per 100 eggs incubated. It gives an indication of the performance of the hatchery.