Ransum sapi potong dan perah

Introduction

  • Course: Principles and Procedures in Ration Formulation for Large Ruminants.

  • Instructor: Teaching Team of Ruminant Nutrition.

  • Material: Overview on the nutritional needs of beef and dairy cattle, factors influencing nutritional requirements, and the stages of ration formulation.

Key Learning Objectives

  1. Understand the basic principles and procedures for formulating rations for beef cattle and dairy cows based on their physiological status, breeding goals, and production targets.

  2. Select and utilize available feed resources considering their nutrient content to meet cattle production needs.

  3. Calculate the cost of feed per unit weight and per production target.

Importance of Nutrition in Ruminants

  • Vital for maintaining normal physiological processes and overall activity.

  • Crucial for growth, influencing bone, muscle, organ, and connective tissue development.

  • Supports fattening by storing nutrients not used for maintenance, growth, and other functions.

  • Essential for meat and milk production and for optimizing reproductive functions.

Feed Types and Sources

  • Cattle can consume large amounts of low-quality fiber feed such as grass, straw, silage, corn, and by-product grains.

  • High-quality forage is economical; however, it provides the best nutrient content during the vegetative phase.

Non-Protein Nitrogen Usage

  • Economical source of nutrients, commonly mixed into grain rations or liquid supplements like molasses for optimal nutrition.

  • Urea supplements can provide one-third to half of the protein requirements for beef cattle.

Creep Feeding Technique

  • A common practice in large farms to ensure optimal growth in young cattle, as milk alone often doesn't meet the nutritional needs. Creep feeding allows calves access to nutrient-rich feed apart from their mothers.

  • Important to ensure all young livestock can attain growth potential.

Nutritional Requirements for Growth Phases

  • Essential differences exist between the pre-weaning phase (2 months post-birth) and post-weaning phase, especially regarding rumen development and nutritional needs.

  • Adequate colostrum intake immediately after birth is critical for health and growth.

Calculating Nutritional Needs

  • Example: For a 300 kg heifer with a target gain of 500 grams per day, ration formulations include calculating the required dry matter, protein, and minerals based on intended feed sources.

Sample Calculation Components

  • Dry matter intake capped at 1.33% of body weight.

  • Nutritional needs to be supplemented from available feed options.

Conclusion

  • Appropriate nutrition is essential in maximizing production and ensuring the health of livestock. Continual assessment and adjustment of rations based on growth data and feed availability is crucial for successful cattle management.