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Productive and Reproductive Performance of Crossbred and Indigenous Dairy Cows Under Rural Conditions in Comilla, Bangladesh

Omar Faruk Miazi
Department of Genetics and Animal Breeding, Chittagong Veterinary and Animal Sciences University, Chittagong

Md. Emran Hossain
Department of Genetics and Animal Breeding, Chittagong Veterinary and Animal Sciences University, Chittagong

Mohammad Mahmudul Hassan
Department of Genetics and Animal Breeding, Chittagong Veterinary and Animal Sciences University, Chittagong

Abstract/ Executive Summary:

A comparative account of the productive and reproductive performance of crossbred and indigenous dairy cows at some selected areas of Comilla district. The survey was conducted on 50 dairy cows for a period of four months from June to September, 2004. Out of 50 cows 25 were crossbred and 25 were indigenous. Results showed that the average daily milk production of Local, Shahiwal x Local, Friesian x Local and Jersey x Local dairy cows was 2.26±0.19, 4.9±0.95, 6.0±1.0 and 5.71±0.87 liter respectively. The average age of calving interval and lactation length of the crossbred and indigenous cows did not differ significantly (P>0.05). However, the average age at puberty of Shahiwal x Local, Friesian x Local and Jersey x Local was significantly (P<0.01) lower than the local breed. The crossbred cows had significantly (P<0.01) lower pubertal age than local. The postpartum heat period and service per conception of different crossbred and local cows did not differ significantly (P>0.05). The average gestation length of Local, Shahiwal x Local, Friesian x Local and Jersey x Local was 289.88±1.44, 285.0±0.0, 285.0±4.18, and 282.08±2.42 days respectively. The productive and reproductive performance of Friesian x Local cows was superior to the rest of the breeds under study.

Keywords: Dairy cows, indigenous, crossbred, production, reproduction and performance

Location: Comilla

Start Date: 01-06-2004

End Date: 30-09-2004

Program Area: Animal Health and Management

Commodity: Cow

Objectives:

The study was undertaken with the following objectives: (a) to evaluate the productive performance of crossbred and indigenous cows and (b) to compare the reproductive performance of crossbred and indigenous cows at farmers level in rural conditions.

Methodology:

The survey was conducted on 50 dairy cows for a period of four months from June 10 to September 09, 2004 at some selected areas of Comilla district. The areas where found available cross breed near to the artificial insemination(AI) center and point were selected . The dairy cows had been selected on the basis of milking period was on going. The cows were in same lactation condition also near to same age. Preparation of Questionnaire: The questionnaire was developed in accordance with objectives of the study. The data were collected directly from farmer of some selected area of Comilla district. The farmers under the study areas were maintained the general rural managemental system. They supported their dairy cow with a shed and scatteredly supplied some roughage and concentrate feeds. The local cows are most common tan tat of cross bred cows. Under cross bred cows, more common is Sahiwal x Local and Friesian x Local, and less frequent is Jersy x Local. So on the availability of the breeds I had selected Local (25), Sahiwal x Local (10), Friesian x Local (10) and Jersy x Local (5) for the data collections. Data were collected from the farmers of selected areas by using the questionnaire. The collected data was compiled, tabulated and analyzed in accordance with the objectives of the study. The data were subjected to statistical analysis using completely randomized design to compute analysis of variance and means of each variance with standard error (SE) according to Steel & Torrie (1980). For meaningful comparison, least significant difference (LSD) test were performed with SPSS (7.5 verson)

Source of Information: Univ. j. zool. Rajshahi Univ. Vol. 26, 2007. pp. 67-70 ISSN 1023-6104

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The average gestation length of indigenous and crossbred cows was 289.88±1.44 and 283.98±1.24 days respectively. The gestation length for Sahiwal x Local, Friesian x Local was 285.0±0.0 and 285.0±4.8 days respectively. These results are partially in agreed with Asaduzzaman & Miah (2004) who observed that the gestation length for Sahiwal x Local and Friesian x Local were 281.1±4.63 and 282.7± 8.41 days respectively. Rahman et al., (1993) also observed the average gestation length for Local x Sahiwal, Local x Friesian and Local x Jersey respectively. Sahiwal x Local, Friesian x Local and Jersey x Local is 1.32±0.13, 1.50±0.50, 1.60±0.24 and 1.25±0.13 respectively. But in case of Friesian x Local. The average gestation length of indigenous and crossbred cows was 289.88±1.44 and 283.98±1.24 days respectively The average milk yield of Local, Sahiwal x Local, Friesian x Local and Jersey x Local was 2.26±0.19, 4.9±0.95, 6.0± 1.06 and 5.71± 0.87( l/d) respectively. It was observed that crossbreeding had a significant effect (P<0.01) on milk yield. Among different cows, highest milk production was recorded in case of Friesian x Local cross (6.0 ±1.0 litres) and lowest milk yield was recorded (2.26±0.19 litres) in Local cows. The average lactation length of Local, Sahiwal x Local, Friesian x Local and Jersey x Local was 235.40±6.95, 270, 234.0±24.0, 274.0±3.72 days respectively. It was observed that genotype had no significant (P>0.05) effect on lactation length. Lactation length was highest for Jersy x Local (270.00±0.00 days) and lowest for Friesian x Local (234.0±24.0 days).,

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