Protein requirements of growing indigenous chickens during the 14-21 weeks growing period

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Protein requirements of growing indigenous chickens during the 14 - 21 weeks growing period

A study was conducted to investigate the growth response of growing indigenous chickens between 14 and 21 weeks of age to diet protein level. The chickens were offered diets ad libitum with 100, 120, 140, 160 and 180 g crude protein (CP)/kg diet. Body weight and feed intake of the birds were recorded weekly. Feed intake and weight gain increased significantly between the 100 and 160 g CP/kg die...

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I . The protein requirements of lambs were established by measuring nitrogen balance in seventy-four animals given liquid diets which passed direct to the abomasum. Four groups of lambs weighing approximately 8 kg (group I), 13 kg (group z), 21 kg (group 3) and 30 kg (group 4) received diets in which 0-10, 0.15, ozo,o'z5, 0 . 3 0 , 0 3 5 or w4oof thedigestibleenergy was provided as protein (DPE...

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Effects of Dietary Protein and Energy on Growth Performance and Carcass Characteristics of Betong Chickens (Gallus domesticus) During Growing Period

The objective of this study was to investigate the requirements of protein and energy level of the Betong chicken during growing period (42-84 days of age). Total of 288 42-days old of Betong chickens were used in a 4 x 2 factorial experiment with a completely randomized design. Two factors are included in the experiment design: 1) four dietary protein levels (15, 17, 19 and 21% CP) and 2) two ...

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Growing and finishing performance of steers when fed recycled poultry bedding during the growing period.

Sixty Angus-cross steers were used to compare the effects of recycled poultry bedding (RPB) stacking method and the inclusion of monensin in growing diets on performance. Steers were individually fed balanced, growing diets for a period of 84 d. The diets were control (CON), CON + monensin (CON+M), deep-stacked RPB (DS), DS+M, shallow-stacked RPB (SS), and SS+M. The CON diets contained corn, so...

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The sequential feeding of growing chickens.

1. Male chickens, I week old, were fed alternately for 6 or 12 h periods with diets complementary in their amino acid composition. The isonitrogenous, isoenergetic diets were based on fish meal or sunflower meal as the sole source of protein, or fish meal-sunflower (40:60, w/w); each diet contained 120 g crude protein/kg. Other groups of chickens were given these diets ad lib. 2. Net protein ut...

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ژورنال

عنوان ژورنال: South African Journal of Animal Science

سال: 2003

ISSN: 2221-4062,0375-1589

DOI: 10.4314/sajas.v33i2.3759