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Selection of Brahman Crossbred-breeding Bulls Based on Phenotypic Performance

MM Haque
Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh.

MA Hoque
Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh.

NG Saha
Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh.

AKFH Bhuiyan
Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh.

MM Hossain
Department of Animal Science, Bangladesh Agricultural University, Mymensingh.

, MA Hossain
Upazila Livestock Office, Chirirbandar, Dinajpur, Bangladesh.

Abstract/ Executive Summary:

A beef breed development project was carried out in the Department of Livestock Services (DLS) in 2009 in selected areas of Bangladesh. Under this project, semen of Brahman bulls were imported from the USA and used to inseminate indigenous cows to produce graded calves. The present study was undertaken to select graded Brahman bulls of the aforesaid project for breeding purpose. Using the data of Brahman grade-1 population, 4 (four) bulls were selected based on external appearance, phenotypic performance and libido. Records on 233 Brahman grade-1 calves (127 male and 106 female) were analyzed by SAS computer program. Birth weight, yearling weight and average daily gain were estimated by considering sex and area groups. The birth weight was found to be 22.25±5.60 Kg for male and 20.33±3.88 Kg for female calves (average 21.38±4.98 Kg). The yearling weight of male and female calves was found to be 222.07±73.21 and 191.76±69.04 Kg, respectively. Highest yearling weight and average daily gain were found in Charghat (401.11±39.75 kg and 1034.82±107.90 g, respectively) while lowest values were in Thakurgaon area (152.69±52.74 Kg 369.42±141.94 g, respectively). The average daily gain male and female calves were 547.42±193.7 and 470.34±184.52 g, respectively. Area and sex had highly significant (p<0.001) effects on birth weight, yearling weight and average daily gain of calves. The average daily gain of four selected graded Brahman bull calves was 731 g. The estimated selection differential and selection intensity for average daily gain of the four bulls were 183.53 g and 2.263, respectively. The growth performance along with estimated selection intensity and selection differential for average daily gain indicated that these selected graded Brahman breeding bulls may generate a good opportunity to improve indigenous cattle for beef purposes.

Keywords: Brahma bull, Growth performance, Selection deferential, Selection intensity

Location: BAU, Mymensingh

Start Date: 00-00-2009

End Date:

Program Area: Variety and Species

Commodity: Bull

Objectives:

To inseminate indigenous cow to improve beef production potentialities.

Methodology:

A beef breed development program entitled “Beef breed improvement project” is running in different selected areas of Bangladesh by the Government of the Peoples’ Republic of Bangladesh under the Department of Livestock Services (DLS). In this project, semen of Brahman bulls was imported from the USA in 2009 (Bull ID BR40, BR524, BR522, BR525, 14BR41 and BR10)This imported semen was used to inseminate indigenous cows to obtain graded progeny in the selected regions.With the collaboration of DLS, Faculty of Animal Husbandry, Bangladesh Agricultural University (BAU) has started a sub-project entitled “Innovative research on livestock and poultry to increase milk, meat and egg production in Bangladesh”. In the present research, 4 (four) Brahman crossbred (graded) breeding bulls have been selected from those crossbred population-1 (F). Bulls have been selected on the basis of average daily gain, physical appearance and libido. The selected bulls are now being rearing at the artificial insemination center of BAU. Collected semen of those bulls are being used to inseminate indigenous cow to improve beef production potentialities

Source of Information: Bang. J. Anim. Sci. 2011. 41 (2): 60-66

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The birth weight, yearling weight and average daily gain of Brahman crossed calves were higher than that of indigenous and other crossbred calves in Bangladesh as well as major part of the world. With some exception, higher the birth weight eventually greater in average daily gain and yearling weight, although management system of calves might have affected on these traits. The growth performance along with estimated selection intensity and selection differential for average daily gain of Brahman crossbred breeding bulls indicated that the selected bulls may create an exploitation opportunity to improve indigenous cattle for beef purposes in Bangladesh as well as sub-tropical regions. As the Brahman crossed cattle are a new introduction to Bangladesh, further in depth study is needed to explore more information from breed development approaches.

Knowledge Management: Journal