1993, Number 2
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Vet Mex 1993; 24 (2)
Feed value of torula yeast (Candida utilis) on poultry diets
Flores CE, Avila GE, Morales BE, Arias NJ
Language: English/Spanish
References: 13
Page: 145-147
PDF size: 293.80 Kb.
ABSTRACT
In order to study the use of single cell torula yeast. (Candida utilis) grown on cane molasses, on poultry diets, two experiments were conducted. The addition of yeast was on practical broiler and laying hens mash diets, sorghum + soybean meal, including 0, 2.5, 5.0, 7.5 and 10%, respectively. A randomized design was used; each treatment was fed by triplicate. In Experiment 1,180 Indian River sexed broiler, one day of age, chicks were housed in battery cages. Each group was formed with 6 males and 6 females. Results obtained at 7 weeks of age were similar (P › 0.05) among treatments, for weight gain: 1909,1932, 2047,1915 and 1905 g; for feed consumption: 3707, 3674, 3689, 3623 and 3754 g; and for feed conversion: 1.94, 1.90, 1.86, 1.91 and 1.97, respectively. In Experiment 2,150 White Leghorn hens (Hy-Line) of 10 months of age, housed in cages including 10 birds by replicate, were used. Data obtained after 92 days using 0, 2.5, 5.0, 7.5 and 10.0% of torula yeast, respectively was for egg production: 78.7, 78 7, 79.1, 79.6 and 81.1%; for egg weight: 62.4, 61.4, 62.0, 62.7 and 61.8 g, daily feed consumption: 110,104, 110,111 and 113 g; and feed conversion: 2.23, 2.17, 2.25, 2.22 and 2.24, respectively. The information in this study indicates that torula yeast can be included on broilers and laying hen diets up to 10% without causing problems on performance.
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