REPLACEMENT CORN SILAGE BY DUCKWEED SILAGE IN BARKI LAMBS RATIONS

Document Type : Review Article

Authors

1 Post Grad Student, Faculty of Graduate Studies and Environmental Research, Ain Shams University

2 Department of Animal Production, Faculty of Agriculture, Ain-Shams University, Egypt

3 Animal Production Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.

Abstract

The present work was conducted to study the effect of replacement corn silage (CS) by duckweed silage (DS) improved the performance of growing Barki lambs using one of the following rations: R1: 2% of body weights (BW) concentrate feed mixture (CFM) + CS (control), R2: 1.5% of BW (CFM + DS), R3: 1.75% of BW( CFM + DS) and R4: 2% of BW (CFM + DS). Results showed the silages had good smell and were free from any signs of molds in all groups. Digestibility trial was conducted using twelve mature local Barki breed were divided four groups (3 animals each) and were determined digestibility coefficients. Animals in group R3 recorded (P<0.05) the highest digestibility coefficients for all nutrients and nutritive value than others. These results showed a significant improvement (P<0.05) in digestibility coefficients of NDF, ADF and cellulose in R3 than other groups. Results showed insignificant differences (P>0.05) among the three tested groups treatment in all blood parameters. The second experimental trials were twenty Barki lambs with average body weight of 20.00 ± 2.0 kg /head were used. Lambs were divided into four groups (5 animals each) and fed the four respective rations with the same regime of feeding the experimental lasted for month. R3 recorded the highest value of average daily gain compared with R4, R1 and R2. Also, R3 recorded the best value of feed conversion (g DM/g gain) were (4.43) followed by the R2 (4.76), followed by R1 (5.51) than R4(5.65). It was concluded that replacing corn silage by duckweed silage to rations of growing Barki lambs could improve their performance, digestibility, average daily gain and feed conversion. However, for improved performance of the lambs and economic benefits (R3) is recommended.
 

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Journal of Environmental Science
Volume 50, Issue 10 - Serial Number 10
Part 7: Agriculture Sciences
October 2021
Pages 639-661

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