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Dry Feed Management
Background
Numerous studies have examined the nutrition of the calf. Nutrient requirements have been established and models created to help design the “ideal” calf starter feed. Recent initiatives have included work to investigate the impact of the nutrition of the calf on the long term production of milk and lean meat in the adult animal.
Product Selection
Essential requirements and key features of a specialist dry calf feed:
Requirement
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Stimulate dry matter intake
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Promote rumen development
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Ensure high rate of tissue protein gain
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Promote good immune function
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Minimise digestive upsets
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Maintain good bloom
Feature
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Appropriate ingredients
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Ingredients should release ideal rumen acids
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Ideal amino acid profile
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Ideal vitamin and trace element supply
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Balanced energy sources
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Essential fatty acids
Specific Additives
Potential specific feed additives must be evaluated based on sound research. A cost effective, consistent response must be demonstrated.
Physical Form
Compound feeds in 3mm pellet form are the most common calf concentrates. However, new specialist products in 6mm nut form, which are designed for feeding to calves and growing cattle beyond twelve weeks, are increasing in popularity. They provide a very simple, cost effective “single feed” system.
Coarse mixtures have historically been popular. They are very visually appealing and provide similar nutrients to compound feeds. Care must be taken to avoid dust and a high proportion of mealy materials which can lead to respiratory problems. Latest data suggests that from an economic perspective it is better to feed a compound feed than a coarse mixture.
Application
Specialist dry calf feeds should be offered from day one up to 12 weeks of age. Fresh feed must be provided each day. Calves must be eating at least 1kg for three consecutive days before weaning. When intakes exceed 3.5kg per head per day calves should be changed to the appropriate heifer of beef feed.