Optimal Plant Crude-Protein Ration in the Feed for Kabir Broilers

News source: Department of Agriculture and Forestry Extension, MARD, Vietnam
For further information: Journal of Agriculture and Rural Development., 2001-03-01

Best Level of Protein in Broiler Feed

To find out the optimal percentage of crude protein from plants in the feed, 450 one-day-old broiler chicks were given three kinds of feed with a different percentage of protein.

Three Experiments

Experiment I (21.0%, 19.0%, 17.0%), Experiment II (22.5%, 20.5%, 18.5%), Experiment III (24.0%, 22.0%, 20.0%). Soybean was used as the plant crude protein. The three experiments gave the following results.

• 1. The percentage of crude protein in the feed did not affect the viability of chicks, at least within the ranges of protein percentage examined.
• 2. The optimal percentage of protein became lower as the chicks grew older. At the age of 0-3 weeks, the optimal percentage was 21%. At 4-7 weeks it was 19%, and 7-10 weeks, it was 17 %.
• 3. The average rate of protein needed for 1 kg of weight gain was 2.83 kg, 2.89 kg, and 2.89 kg in Experiments I, II, and III respectively.
• 4. It was concluded that Kabir broiler chickens need a low level of plant crude protein for feed, and that the lean rate is rather high, ranging from 75.4 to 77.9.
  

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  Livestock / Pasture, Forage and Feed