The effect of protein, energy, lysine and methionine + cystine on growth rate, feed efficiency, dressing percent, and parts yield of white meat-type pheasants /
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| Other Authors: | , , |
| Format: | Thesis Book |
| Language: | English |
| Published: |
1990.
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| Subjects: | |
| Online Access: | ProQuest, Abstract Link to OAKTrust copy |
| Abstract: | Three experiments were conducted to evaluate various dietary protein and energy levels for optimum performance of meat-type pheasants. Additionally, two experiments were conducted to evaluate various lysine and methionine + cystine levels for optimum performance in meat-type pheasants. In Experiment 1, 600 unsexed pheasants were randomly assigned to one of twelve starter regimes from 0-56 days of age. This experiment implemented a 3 x 4 factorial design with the 3 factor being 2,600, 2,800 and 3,000 ME kcal/kg and the 4 factors being: 26%, 28%, 30% and 32% crude protein. All treatments received a common grower/finisher diet from 57-98 days of age. Experiments 2 and 3 utilized 678 unsexed pheasants assigned to one of twelve treatment groups and implementing two 2 x 3 factorial designs from 0-56 days of age. Factor 1 examined two crude protein levels (28% and 30%) and three dietary energy levels (2,600, 2,800 and 3,000 ME kcal/kg). Factorial 2 examined two methionine + cystine levels (1.10% and 1.29%) and three lysine levels (1.42%, 1.67% and 1.92%) incorporated into a 28% crude protein, 2,800 ME kcal/kg starter diet from 0-56 days of age. From day 57-98 both factorial designs received a common grower/finisher diet. The 28% crude protein diet with 3,000 ME kcal/kg formulated to contain 1.27% methionine + cystine and 1.42% lysine performed best from 0-28 days of age. From days 29-56, the 30% crude protein diet with 3, 000 ME kcal/kg formulated to contain 1.10% methionine + cystine and 1.92% lysine showed optimal growth performance and maximum carry-over effect to 98 days of age. Dressing percents and parts yield were not affected by any starter treatments. |
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| Item Description: | Typescript (photocopy). Vita. "Major subject: Poultry science." |
| Physical Description: | xiv, 105 leaves : illustrations ; 29 cm |
| Bibliography: | Includes bibliographical references. |