Formulation of rations for cattle and buffaloes for different functions

FORMULATION OF RATIONS FOR CATTLE AND BUFFALOES FOR DIFFERENT FUNCTIONS 

Aim

  • To formulate rations for cattle and buffaloes for different functions.

Requirements

  • Information about the type of animal, body wt., physiological status etc.
  • Feeding standards (commonly followed is ICAR, 1998)
  • Feedstuffs to be used with their nutritive values.

Procedure

  • Find out the total requirements of the animal in terms of DM, DCP and TDN depending upon the physiological status (pregnancy, lactation, growth, work
  • By trial and error method, find out the amount of green and dry fodder that should be offered to meet the nutrient requirements of the animal taking into consideration their availability.
  • Calculate the amount of DM, DCP and TDN supplied through green and dry fodder.
  • Now, subtract the amount of nutrients supplied through green and dry fodder from the total requirements of the animal to find out the balance of nutrients to be supplied through concentrates.
  • Finally, calculate the amount of concentrate mixture to be offered to the animal to meet the balance of nutrients. etc., from the feeding standards (ICAR, 1998).

Note:

Example

  • Formulate a ration for a buffalo weighing 500 kg yielding 10 kg of milk/day with 7 % butterfat and in Generally, rations are first formulated for one nutrient (say DCP) and then, the other nutrients (say TDN) are checked to see whether the feedstuffs used will meet the requirement or whether alternative feeds need to be included in the ration. 43 1st lactation using the following feedstuffs.

Feedstuff
DM
DCP
TDN
NB-21 fodder
25
1
>16
Paddy straw
90
0
40
Concentrate mixture
90
16
70

Solution

1. Calculation of nutrient requirements of the animal

Requirements DM(kg) DCP(kg) TDN (kg)
For maintenance
12.5 - 15.0
0.30
3.70
For production
(10kg with 7% fat)
-
0.63
4.60
Growth allowance
(20 % - 1 st lactation)
-
0.06
0.74
Total requirements
0.99
9.04

 2. Finding out the amount of nutrients supplied by green and dry fodder

Feedstuff
Amount on
 DCP(kg) TDN (kg)
Fresh basis Dry basis
NB-21 fodder
20
5.0
0.2
Paddy straw
6
5.4
0.0
Total quantity
26
10.4
0.2

3. Balance of nutrients to be supplied thru concentrate mixture supplied thru

DM(kg) DCP (kg) TDN (kg)
Total requirement
15.0
0.99
9.04
Green & dry fodder
10.4
0.20
5.60
To be supplied thru conc.
4.60
0.79
3.44

4. Amount of concentrate mixture required to meet the DCP requirement

Amount of DCP to be supplied thru concentrates = 0.79 kg
Amount of DCP present in the concentrate mix = 16 %
                                                                   0.79
No. of kg of concentrate mixture = ------ x 100 = 4.9375 kg.
                                                                   16

5. Amount of TDN supplied through concentrate mixture

Amount of TDN present in the concentrate mix = 70 %
Amount of concentrate mixture to be offered = 4.9375 kg
                                                                                 4.9375
Amount of TDN supplied thru conc. mix = --------- x 70 = 3.456 kg
                                                                                   100

6. Verification

Nutrients supplied
through
DM
(kg)
DCP
(kg)
TDN
(kg)
NB-21 green fodder
5.00
0.20
3.200
Paddy straw
5.40
0.00
2.400
Concentrate mixture
4.44
0.79
3.456
Total
14.84
0.99
9.056
Actual requirement
12.5 – 15.0
0.99
9.040

Last modified: Wednesday, 4 April 2012, 4:22 AM