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Effect of Feedlot Diets on Growth Performance of Native Growing Bulls

Khan Shahidul Huque
Chief Scientific Officer and Head
APRD, BLRI, Savar, Dhaka

Jahangir Hossain
Scientific Officer
APRD, BLRI, Savar, Dhaka Nasrin Sultana, SO, APRD, BLRI, Savar, Dhaka

Nasrin Sultana
Scientific Officer
APRD, BLRI, Savar, Dhaka

Abstract/ Executive Summary:

The study was undertaken to determine the growth efficiency of native cattle fed diet containing concentrate at level similar to that of feedlot diets. Ten BLRI-Beef-1 (BLB-1) bulls having initial average live weight of 309 kg were randomly allocated to two dietary treatment groups and fed concentrate mixture at the rate of 2 and 1% DM (Diet A and B, respectively) of live weight for 65 days. Napier silage was offered ad libitum in addition to their concentrate mixture. The intake of concentrate in Diet A and B was 62.7 and 41.1, respectively. The average live weight gain of bull in Diet A and B was 1208.2 and 861g, respectively and this difference was not significant (p>0.05). Similarly, feed efficiency (feed/gain) in Diet A and B was 9.59 and 9.47, respectively and this difference was not significant (p>0.05). It was concluded that increasing concentrate from 1 to 2% of live weight failed to increase feed efficiency, but resulted in a higher daily live weight gain.

Keywords: Feedlot, Bull, Feed Efficiency

Location: BLRI, Savar, Dhaka

Start Date: 01-07-2006

End Date: 30-06-2007

Program Area: Animal Health and Management

Commodity: Feed

Objectives:

To determine the growth efficiency of native cattle fed diets containing concentrate at level similar to that of feedlot diets.

Methodology:

The study was undertaken to determine the growth efficiency of native cattle fed diet containing concentrate at level similar to that of feedlot diets. Ten BLRI-Beef-1 (BLB-1) bulls having initial average live weight of 309 kg were randomly allocated to two dietary treatment groups and fed concentrate mixture at the rate of 2 and 1% DM (Diet A and B, respectively) of live weight for 65 days. Concentrate was adjusted weekly considering their live weight changes. Napier silage was offered ad libitum in addition to their concentrate mixture. Digestibility study was conducted for 12 days with 7 days adjustment period. All samples were analyzed in duplicate for dry matter, organic matter and N balance. Data were analyzed statistically and means with differences were separated by least significant differences.

Source of Information: BLRI. 2007. Annual Report, APRD.pp 81 - 89

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It may be concluded that increases of concentrate supply from 1 to 2% of live weight BLB-1 bulls faile to increase feed efficiency.

Knowledge Management: Report/Proceedings