Comparison of Productive & Reproductive performance of Dairy cow
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1) The document compares the productive and reproductive performance of dairy cows in the char and plain land areas of Ulipur upazila, Bangladesh. It finds that crossbred cows (HF and Sahiwal) had higher average daily milk yields compared to indigenous Deshi cows over 4 lactations. Crossbred cows also had longer average lactation lengths.
2) Reproductive performance was also better in crossbred cows. They reached first heat and calving earlier, had fewer services per conception, higher conception rates, and shorter calving intervals than indigenous Deshi cows. Gestation lengths were similar between crossbred and indigenous cows.
3) In both productive and reproductive performance, crossbred cows generally outperformed indigenous
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Comparison of Productive & Reproductive performance of Dairy cow
1. 1) Productive performance of Dairy cows available in char andplain land areas of Ulipur upazila in Bangladesh
Comparisonof Productive performance ofDairy cows available in Char & Plain landareas of Ulipur upazila( sample size 16
cows among them8 are Deshi & 8 are cross bred cow for each lactation Total no. of cows are 64 among them 32 are
Indigenousand 32 are Cross bred like HF and Sahiwal)
Sl # Parameters Areas
Plain & char land (Deshi cow)
Ave. Production
(Lts) of Indigenous
cow (Plain &Char
area)
Plain & char land (Cross bred cow)
Average Production (Lts)
of cross bred cowLxSH LxHF
1st 2nd 3rd 4th 1st 2nd 1st 2nd
01
1st
Lactation
- Milk
yield per
day (Lts)
Plain 1.6 1.1 1.3 1.5 1.37 5 4.3 5.2 6 5.125
Char 2.1 2.2 2.5 2.7 2.375 4.8 4.5 6.7 8 6
02
2nd
Lactation
- Milk
yield per
day (Lts)
Plain 2.2 2 2.5 2.6 2.325 5.5 5.2 7.5 8.6 6.7
Char 2.3 3.2 2.6 3 2.775 6.3 6.1 8 9 7.35
03
3rd
lactation-
Milk yield
per day
(Lts)
Plain 2.5 2.3 2.7 2.4 2.475 6.7 6.9 8.2 8.7 7.625
Char 2.7 3.1 3 2.9 2.925 7.5 8.0 8.5 9 8.25
04
4th
lactation-
Milk yield
per day
(Lts)
Plain 1.25 1.0 1.2 1.3 1.187 5 4.1 4.5 5 4.65
Char 1.5 1.4 1.25 1.4 1.387 5.4 4.1 5.25 6 5.18
05
Lactation
length
(Period)
Plain 175 190 195 180 185 days 245 days 265 270 250
257.5 days
Char 192 200 210 195 199.25 days 270 280 282 272 276 days
2. 2) Reproductive performance of Dairy cows available in char and plainland areas of Ulipur upazila in Bangladesh
Comparisonof Reproductive performance ofDairy cows available in Char & Plain landareas of Ulipurupazila(sample size 8 cows
among them 4 are Deshi & 4 are cross bred cow for each parameters. Total no. of cows are 64 among them32are Indigenousand 32
are Cross bred like HF and Sahiwal)
Sl# Parameters Areas
Plain & char land (Deshi cow) Average
(Month/days)
Plain & char land (Cross bred cow)
Average
daysLxSH LxHF
1st 2nd 3rd 4th 1st 2nd 1st 2nd
01.
Age at first
heat
Plain 33 m 32 m 34 m 36 m 33.75 m 26 m 28 m 24 m 23m 25.25 m
Char 31 m 30 m 29 m 32 m 30.75 m 21 m 22 m 21 m 20 m 20.5 m
02.
Service per
conception
Plain 1.87 times
1.925
times
2.13
times
2.31
time
s
2.058 times
1.92
times
1.65
times
1.87
times
1.62
times
1.765
times
Char
1.911
times
1.52
times
2.05
times
1.99
time
s
1.86 times
1.90
times
1.78
times
1.65
times
1.87
times
1.8
times
03
Conception
rate
plain 71.7 82.8 73.05 81.8 77.33 66.67 70.50 81 77.07 73.81
Char 73 83.6 74.5 82.2 78.32 67.50 71.25 81.52 78.08 74.58
04.
Age at first
calving
Plain 45 m 42 m 44 m 45 m 44 m 36 m 34 m
37.5
m
37 m
36.12 m
Char 43 m 42 m 39 m 41 m 41.25m 33 m 31 m 34 m 32 m 32.25 m
05.
Gestation
length
Plain 282 days
284
days
286
days
279
days
282.75 days
287
days
279
days
284
days
290 days
285 days
Char 285 days
290
days
283
days
288
days
286.5 days
290
days
286
days
283
days
287 days
286.5
days
06.
Post-partum
heat period
Plain 6.5 m 5.4 m 4.5 m 6 m 5.6 m 6 m 4.5 m 5 m 5.8 m
5.32 m
Char 4.2 m 5.5 m 4.7 m 5 m 4.85 m 4.7 m 4.3 m 5 m 5.3 m 4.82 m
07. Calving Plain 18.5 m 22 m 17.5 m 19 m 19.25 m 20 m 19 m 17 m 16.8 m 13.45 m