Feeding of growing calves (3-6 months)
The calf which gains about 600 g per day will weight 70 kg to 130 kg during 3 to 6 months of age, with an average live weight of about 100 kg, for which the nutrient requirements are as follows
Dry matter |
2.76 kg |
Total digestible
nutrients |
1.92 kg |
crude protien |
0.44g |
The feeding schedule can based on non-leguminous or leguminous forage as illustrated below
Non-leguminous fodder/grass |
5-15 kg |
Concentrate mixture
(TDN-74%, CP-25%) |
1-2 kg |
Leguminous fodder |
10-15 kg |
Concentrate micxture
(TDN-74%, CP-18%) |
1-2 kg |
Feeding of growing calves (6-12 months)
- At the daily weight gain of 600 g per day, the calf may weigh
from 130 to 240 kg during this period with an average of 185 kg.
The nutrient requirements of the calf are given below
Dry matter |
4.33 kg |
Total digestible
nutrients |
2.86 kg |
crude protien |
0.58g |
- The feeding schedule can be based on non-leguminous or leguminous
fodder is
Non-leguminous fodder/grass |
10-20 kg |
Concentrate mixture
(TDN-74%, CP-23%) |
1-2 kg |
Leguminous fodder |
15-25 kg |
Concentrate micxture
(TDN-70%, CP-13%) |
1.5-2.5 kg |
Feeding of growing calves (1-2 years)
- With an average daily gain of 600 g, the calf during this period
weighs from 240 to 460 kg with an average live weight of 350 kg.
The nutrient requirements representing the average of males and
females are as follows
- Males grow faster and thus require more nutrients than the female
calves.
- Based on the type of the basal roughage ration, different feeding
options are given below
Non-leguminous fodder/grass |
32 kg |
Concentrate mixture
(TDN-70%, CP-22%) |
2 kg |
Leguminous fodder |
50 kg |
Concentrate micxture
(TDN-70%, CP-12%) |
2.0 kg |
Leguminous+Non-leguminous
mixed fodder |
41.0 kg |
Concentrate micxture
(TDN-70%, CP-15%) |
2.0 kg |
Leguminous fodder(Berseem) |
65.0 |
Wheat srtaw(ammoniated) |
3.5 kg |
Concentrate mixture
(TDN-70%, CP-20%) |
5.5 kg |
Feeding of heifers and growing bulls (2-3 years)
- For 400 kg live weight, the nutrient requirements for the above
category of calves are as follows
Dry matter |
9.48 kg |
Total digestible
nutrients |
5.58 kg |
crude protien |
1.40 kg |
- The feeding schedules as per different basal rations are depicted
below
Non-leguminous fodder/grass |
30 kg |
Concentrate mixture
(TDN-70%, CP-20%) |
3.5kg |
Leguminous fodder |
60 kg |
Concentrate micxture
(TDN-60%, CP-10%) |
2.5 kg |
Leguminous+Non-leguminous
mixed fodder |
48.0 kg |
Concentrate micxture
(TDN-60%, CP-12%) |
2.5 kg |
Wheat srtaw(ammoniated) |
4.5 kg |
Concentrate mixture
(TDN-70%, CP-20%) |
6.0 kg |
Green fodder |
4.0 kg |
Feeding of growing bulls (above 3 years)
- Usually, the breeding bulls attain their adult size at 600 kg
live weight. However, larger sized breeds such as Holstein-Friesian,
grow beyond 600 kg live weight and continue to gain about 600 g
per day. The nutrient requirements of such heavy growing bulls are
as follows
Dry matter |
14.16 kg |
Total digestible
nutrients |
7.79 kg |
crude protien |
1.7 kg |
- Based on different types of basal roughages, the various feed
schedules are given below
Non-leguminous fodder/grass |
50 kg |
Concentrate mixture
(TDN-60%, CP-20%)
|
4.5kg |
Leguminous fodder |
70 kg |
Concentrate micxture
(TDN-60%, CP-13%) |
4.5 kg |
Leguminous+Non-leguminous
mixed fodder |
56.0 kg |
Concentrate micxture
(TDN-60%, CP-12%) |
4.5 kg |
Wheat srtaw(ammoniated) |
10.0 kg |
Concentrate mixture
(TDN-70%, CP-25%) |
6.0 kg |
Green fodder |
4.0 kg |
Dry matter
|
7.99 kg |
Total digestible
nutrients |
4.98 kg
|
crude protien |
0.96g
|
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Systems of calf feeding
The system of calf feeding depends upon the type of feed material used for raising the calf. The following systems are conventionally followed:
- Raising on whole milk
- Raising on skim milk
- Raising on fluids other than milk, such as fresh butter milk, fresh
sweet whey, gruels etc
- Raising on milk substitutes
- Raising on calf starters
- Raising on nurse cows
Raising calves on whole milk
- The nutrient requirements of the young calf at 0 to 3 months
of age, with an average body weight of 50 kg are as follows
Dry matter |
1.43 kg |
Total digestible
nutrients |
1.60 kg
|
crude protiens |
315 g
|
- It may be noticed that the TDN requirements are larger than
the DM requirements, because of high proportion of fat in the diet.
At 15 days, the young calf starts nibbling some grass, about half
kg per day which is increased to 5.0 kg at 3 months.
- Instead of green fodder, 1-2 kg of good quality hay can be calf
meal during this period, beginning with 0.5 kg at 15 days of age,
which may be raised to 1.5 kg at 3 months of age.
- From 3 weeks onwards, if the whole milk availability is less, it
can be replaced partially with skin milk, butter milk or any other
fluid milk substitute.
The calf mixture
- The calf mixture is a concentrate supplement for the young calf,
which is being raised on milk or other fluid substitute. The calf
mixture chiefly consists of grains such as maize and oats.
- Grains such as barley, wheat and sorghum also can be used in the
mixture. Cane molassess can be used to an extent of 10% in the calf
mixture.
- An ideal calf mixture contains 80% TDN and 22% CP.
Roughage for the young calf
- Fine stemmed leafy leguminous hay is the best roughage for the
yound calf. Hay can be offered from two weeks of age onwards. A
legume plus grass mixed hay is also valuable.
- Sun-cured hay which possesses a fresh green colour is a good source
of Vitamins A and D as well as B-complex vitamins.
- At 6 months of age, a calf eats 1.5 to 2.25 kg hay. The quantity
increases with age.
- Silage can be given additionally in small quantities at 6 to 8 weeks
onwards. Feeding of silage too early will cause scours.
- Silage is not the preferred roughage for the calf until it reaches
4 to 6 months of age.
- Maize and sorghum silages which are most common are not rich in
protein and calcium and are also low in vitamin D.
Raising calves on nurse cows
- A cow which yields a low fat milk and a hard milker by nature
can be successfully employed to nurse 2 to 4 orphan calves right
from the first week of age.
- A dry calf meal is given along with hay as early as possible. These
calves can be weaned at 2 to 3 months of age.
Raising calves on gruels
- The gruel is a liquid form of calf starter. It is not a milk
substitute. Form 4 weeks of age, milk feeding is gradually with
drawn and gruel is added to the reduced quantity of milk. After
20 days, milk is totally stopped.
Raising calves on calf starters
- In this the calves are given a good start with whole milk. They
are taught to eat a dry calf starter and good hay or forage. At
7 to 10 weeks of age, they are entirely weaned from fluid milk.
Raising calves on milk substitutes
- It must be understood that there is no substitute for milk in
terms of nutritive value for the young calf. However, use of a milk
substitute is resorted to when the availability of milk or other
fluids is extremely limited.
- 'The rate of feeding of a milk substitute is similar to that of
whole milk, i.e. 10% of the body weight of calf after reconstitution.
The total solid of the reconstituted milk substitute make 10 to
12% of the fluid.
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Calf management
- Calves form the future dairy herd. Raising claves is by far
the most difficult operation in a dairy farming enterprise which
requires a great deal of management skill, application and constant
attention.
- Feeding of calves during the first three months is very crucial.
- Improper feeding during this stage may lead to 25-30% of calf mortality.
- A pregnant cow should be fed with good quality fodder and concentrates
during the last 2-3 months of gestation
- Birth weight of calf in generally 20-25 kg
- Proper feeding of calf along with regular deworming will achieve
a growth rate of 10-15 kg/month.
Feeding of dairy calves
- Calf mortality in our country constitutes one of the major causes
of losses in the dairy sector. Feeding management of the calf especially
during the pre-ruminant period has to be specially attended to,
so that a healthy herd of young calves will be available for culling
and retention in the herd.
Feeding of colostrum:
- Colostrum is the milk of the cow during the first few days after
the calving. Colostrum turns into normal milk in about 5 days.
- Nature has made the provision of colostrum for the calf from the
mother to meet the special nutrient requirements of the delicate
neonate and to equip the calf with passive immunity so that it can
overcome the health problems and infections during early life, when
the calf is yet to develop the capacity to generate its own immune
mechanism toward off the diseases.
- The calf should be fed colostrum within first two hours of birth.
Colostrum is rich in protein, fat, minerals and vitamins. It is
rich in gamma-globulins derived from the dam, to impart passive
immunity to the young calf.
- If the dam is not able to provide enough colostrum to the calf,
pooled colostrum from other cows can also be used. In the absence
of colostrum, an artificial colostrum can be made by mixing appropriate
amount of egg white in milk.
Weaning of the calf
- Weaning or separation of the calf from the cow is a management
practice adopted in intensive dairy farming systems. Weaning helps
in uniformity of management and ensures the availability of milk
to each calf as per required amount, avoiding wastage or over-feeding.
- Depending upon the system of management adopted, weaning can be
done at birth, at 3 weeks, at 8-12 weeks or at 24 weeks. Under farmer's
field conditions, weaning is practiced at 12 weeks. Male calves
to be reared as bulls are often allowed to be with the cow even
as long as 6 months of age.
- In an organised herd, where large numbers of calves are raised,
weaning at birth is advantageous.
- Weaning at birth also helps in adopting milk substitutes and calf
meals at early age so that the cow's milk can be saved for human
consumption.
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Calf medication schedule
Age |
Cholestrum
/Milt (lts) |
Medicine witrh milk |
Benifits |
1 st Day |
2
|
2 Spoons of Aromycin |
To control loose motions |
1 st Day |
2
|
|
|
2 nd |
2
|
A-Vitamin |
To prevent night
blindness |
3 rd |
2
|
2 Spoons of Piperzine |
|
4 th |
1
|
|
|
5 th |
1
|
Streptomycin 0.5
gms |
To prevent white
diarrohea |
6 th |
1
|
|
|
7 th |
1
|
2 Spoons of Piperzine |
For round worms |
8 th |
1
|
Salment - 4 days |
To control coccidiosis
and blood motions |
calf alternate feeding schedule
Age
(days) |
Weight
( kgs) |
Cholestrum
( kgs) |
Milk
( kgs) |
Feed consumption (g) |
1-5
|
till 25
|
1-1.25
|
-
|
|
6-15
|
26-35
|
-
|
1.0
|
100
|
16-25
|
36-40
|
-
|
2.0
|
250
|
26 and above
|
41-45
|
-
|
2.5
|
325
|
46-50
|
-
|
3.0
|
500
|
51-55
|
-
|
3.0
|
600
|
56-60
|
-
|
2.0
|
1000
|
above 60
|
-
|
1.0
|
1000
|
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|