Ration (Daily Feed)
A Ration in cattle nutrition is the total feed offered to an animal over a 24-hour period. A complete ration includes everything the animal eats and drinks: green fodder, dry fodder, concentrate, supplements, mineral mixture, salt, and water.
The word "ration" comes from the same root as "rational" — implying a calculated, deliberate quantity. A balanced ration is one that meets all the animal's nutritional requirements (protein, energy, fibre, minerals, vitamins) in the right proportions for its body weight, production level, and life stage.
Components of a typical Indian dairy ration
A complete ration for a lactating cow or buffalo includes:
| Component | What it supplies | Typical amount per day |
|---|---|---|
| Green fodder | Bulk, vitamins, moisture, palatability | 25–40 kg (varies by season) |
| Dry fodder / straw | Fibre, bulk, low-cost energy | 3–5 kg |
| Concentrate (compound feed or farm-mixed) | Concentrated protein, energy, vitamins, minerals | 3–10 kg (varies by yield) |
| Mineral mixture | Macro and trace minerals | 100–200 g |
| Common salt | Sodium, chloride | 30–80 g |
| Buffer (sodium bicarbonate) | Rumen pH stability | 100–250 g (high-yielders) |
| Bypass supplements (high-yielders) | Concentrated energy and amino acids | 200–800 g |
| Water | Essential | 50–100 L |
The exact quantities depend on the animal's body weight, milk yield, life stage, and breed.
Balanced vs unbalanced ration
A balanced ration meets all nutritional targets:
- Crude protein: appropriate % on dry-matter basis (16–18% for lactating cow, 20%+ for lactating buffalo, 22%+ for calf starter)
- TDN / energy: appropriate for production level (65–70%)
- Fat: 3–5% for cow, 5–7% for buffalo
- Calcium, phosphorus, trace minerals: at minimum requirements
- Effective fibre: enough for rumen function
- ANF content: below toxicity thresholds
An unbalanced ration is missing or excessive in one or more nutrients. Common Indian unbalanced ration patterns:
- Protein-deficient ration (excess straw, inadequate cake) — low milk yield
- Energy-deficient ration (low concentrate) — weight loss, low yield
- Excess concentrate, low fibre — acidosis
- Excess calcium pre-calving — milk fever risk
- Missing mineral mixture — reproductive failure, weak heat signs
Types of rations
By feeding method
| Type | Description |
|---|---|
| Separate feeding | Forage and concentrate offered separately at different times |
| Top-dressed feeding | Concentrate sprinkled on top of forage |
| Total Mixed Ration (TMR) | All components pre-mixed into a uniform feed |
| Modified TMR (MTMR) | Hand-mixed approximation of TMR for small farms |
By life stage
| Type | Designed for |
|---|---|
| Calf starter ration | Young calves up to 6 months (calf starter article) |
| Heifer ration | Growing females not yet calving |
| Lactating ration | Cows / buffalo currently producing milk |
| Dry cow ration | Pregnant females in dry period (60 days pre-calving) |
| Transition ration | Last 3 weeks pre-calving and first 3 weeks post-calving |
| Maintenance ration | Bulls, dry cows, non-producing animals |
By production level
| Type | Concentrate proportion | Typical use |
|---|---|---|
| High-energy ration | 50–60% of DMI | High-yielding cows (15+ L/day) |
| Medium-energy ration | 35–45% of DMI | Standard lactating cattle |
| Maintenance ration | 15–25% of DMI | Dry cows, heifers, bulls |
| Production ration | 40–55% of DMI | Mid-yield lactating animals |
How to formulate a ration — simple approach
For a typical Indian smallholder dairy:
- Identify the animal — body weight, milk yield, life stage
- Compute dry matter intake (DMI) — 2.5–3.5% of body weight
- Allocate DMI between forage and concentrate — forage minimum 40% of DMI for adults, more for dry cows
- Select forage — green fodder, silage, dry straw based on availability
- Select concentrate — Type-1 or Type-2 compound feed by milk yield
- Add supplements — mineral mixture, salt, bypass fat/protein for high-yielders
- Compute nutritional outcome — use the DCP and TDN calculator to verify protein and energy targets
- Check costs — use the ration cost calculator to optimise for price
This is the practical approach. Professional nutritionists use computer-based ration software (CPM-Dairy, NRC software, RUMNUT, etc.) that handle dozens of nutrients simultaneously, but the basic principle is the same.
Ration adjustments through the year
A static ration year-round is rarely optimal. Adjust by season:
| Season | Ration adjustment |
|---|---|
| Monsoon / post-monsoon (July–November) | Plenty of green fodder; reduce concentrate slightly; watch for aflatoxin in stored grains |
| Winter (December–February) | Cool weather, good intake; high yield possible; standard concentrate |
| Spring (March–April) | Fodder shortage begins; introduce silage; maintain concentrate |
| Summer (May–June) | Heat stress; reduce concentrate slightly; add bypass fat; cool water and shade; see heat stress article |
Practical use
For a smallholder dairy with 2–10 animals, a simple year-round ration plan works:
- Free green fodder from cut-and-carry or grazing
- 3–5 kg chopped dry fodder
- Compound cattle feed by yield (1 kg per 2–2.5 L milk + 1.5–2 kg maintenance)
- 150 g mineral mixture + 50 g salt
- 100–200 g sodium bicarbonate
- Adjust seasonally
For commercial dairies with more than 20 animals, professional ration formulation using software and detailed nutrient targets pays back the consultancy cost through better feed conversion and higher yield.