Heifer development stages — definition?
From birth to calving, with specific growth and management phases.
Weaning to breeding — focus?
Achieving proper body size and reproductive readiness.
Breeding to calving — goal?
Support growth and prepare heifer for first calving at 2 years.
Heifer growth targets — at breeding?
Around 60% of mature weight.
Avoid over-conditioning — reason?
Impairs reproduction and future milk production.
Nutritional strategies — post-weaning?
Balance energy, protein, minerals, and water for growth.
Concentrate feeding — age?
6-12 months to support rumen development.
High forage diets — age?
Older than 12 months for maintenance and growth.
Body weight at 1 year — percent?
Approximately 40% of mature weight.
Target weight for first insemination?
360-420 kg.
Dry Matter Intake — definition?
Feed consumed excluding moisture, indicator of health.
DMI as a percentage?
1.8% to 2.6% of body weight.
Water needs — importance?
Supports digestion, temperature regulation, and growth.
Energy sources — in diets?
Carbohydrates and fats for maintenance and growth.
Urea — role?
Nonprotein nitrogen for microbial protein synthesis.
Urea — safe level?
No more than one-third of dietary protein.
Mycotoxin management — strategy?
Feed testing, proper storage, and use of binders.
Colostrum — importance?
Provides passive immunity and nutrients to calves.
Rumen development — stages?
Papillae formation and microbial colonization for fermentation.
Urea adaptation period?
Two weeks to two months for microbial adjustment.
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1. What are Heifer Development Stages?
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