A study on dietary requirements of crude protein and energy for EMU chicks and growers

Selvastine Rajkamal, V. Ravinder Reddy, A. Rajasekher Reddy and G.V. Narsa Reddy
Department of Livestock Production & Management, College of Veterinary Science
ANGR Agricultural University Rajendranagar, Hyderabad-500 030

A study was conducted to evaluate the dietary protein and energy requirements of emu chicks (3-8 wks) and emu growers (9-20 wks) under two separate experiments. A 2 x 2 factorial experiment with 20 and 22 per cent protein level each at two energy levels of 2600 and 2800 kcal/kg ME making four test diets was designed for emu chicks. Similarly for emu growers also 2 x 2 factorial experiment with 15 and 18 per cent protein levels each at two energy levels of 2400 and 2600 kcal/kg ME. Four birds were allotted for each test diet. Birds were raised in individual pens. Maize and soya based diets were formulated and by altering proportion of yellow maize, soya, deoiled rice bran and maize mixture adjusted to attain required levels of protein and energy in various test diets. The influence of test diets on emus was assessed in terms of body weight gain, feed intake and feed efficiency in both the experiments.

Body weight gain in emu chicks was significantly (P<0.05) higher on diet with 20 per cent protein than with 22 per cent. Diet containing 2800 kcal/kg ME with 20 percent protein supported higher weight gains in emu chicks. Feed intake and feed efficiency in emu chicks was unaffected irrespective of protein and energy levels. Feed cost per kilogram of body weight gain on diet with 20 per cent protein was significantly (P<0.01) lower than with 22 per cent. Body weight gain in emu growers was significantly (P<0.01) higher on diet with 18 per cent protein than with 15 per cent irrespective of energy level. Feed intake of emus was significantly (P<0.01) higher on diet with 18 per cent protein and 2400 kcal/kg ME than with 15 per cent protein and 2600 kcal/kg ME. Feed efficiency was better on diet with 18 per cent protein and 2600 kcal/kg ME than with 15 per cent protein and 2400 kcal/kg ME. Feed cost/kg of body weight gain was significantly (P<0.01) lower on 18 per cent protein diet than with 15 per cent irrespective of energy level. It can be concluded that a dietary level of 20 per cent protein with 2800 kcal/kg ME and 18 per cent protein with 2600 kcal/kg ME was found to be ideal for optimum growth in emu chicks and emu growers, respectively.

Source : IPSACON-2005

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