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Memorias de investigación
Communications at congresses:
Effect of dietary sunflower hulls on nutrient digestibility, ileal morphology, and volatile fatty acid concentration in broilers and pullets fed a pullet diet from 1 to 21 days of age.
Year:2015
Research Areas
  • Foodstuffs tecnology,
  • Cattle ranch and fishes,
  • Plants and animal biology and ecology
Information
Abstract
The effects of including 3% sunflower hulls (SFH) in the diet on performance, TTAR of nutrients, ileal mucosa morphology, and volatile fatty acid (VFA) concentration in the ceca were studied in birds from 1 to 21 d of age. There were 4 treatments organized as 2 × 2 factorial with 2 chicken lines (broilers vs. pullets) and 2 levels of SFH (0 vs. 3%). Each treatment was replicated 7 times (10 birds). The wheat-soybean meal control diet contained 2,900 kcal AMEn/kg, 0.96% digestible Lys, and 10.8% NDF. In the experimental diet, SFH was included at the expense (wt:wt) of the control diet. Diets were offered in mash form. No interactions between main effects were detected for any trait. ADFI, ADG, and feed conversion ratio (FCR) were better (P < 0.001) in broilers than in pullets. At 7 d of age SFH improved ADG (P < 0.05) and ADFI (P < 0.001) but did not affect FCR. The TTAR of DM, OM, and N was higher (P < 0.001) at 7 d and that of gross energy and the AMEn of the diet were higher at 7 and 21 d (P < 0.01) in broilers than in pullets. At 21 d, SFH inclusion improved (P < 0.05) TTAR of all nutrients and the AMEn of the diet. Compared with pullets, broilers had greater (P < 0.05) villus height, crypt depth, and total VFA concentration per g of fresh digesta with higher proportion of butyrate and lower of acetate. In conclusion, broilers fed a pullet diet grew faster, had better TTAR of nutrients, and higher concentration of VFA than pullets. Villus structure of the broilers was better adapted for nutrient absorption than that of pullets. The inclusion of SFH increased TTAR of nutrients and AMEn of the diet and improved growth performance of birds from 1 to 7 d but not thereafter.
International
Si
Congress
Poultry Science Association
970
Place
Louisville, Kentucky
Reviewers
Si
ISBN/ISSN
0032-5791
Start Date
27/07/2015
End Date
30/07/2015
From page
149
To page
150
Effect of dietary sunflower hulls on nutrient digestibility, ileal morphology, and volatile fatty acid concentration in broilers and pullets fed a pullet diet from 1 to 21 days of age.
Participants
  • Autor: Mohammadvahid Kimiaeitalab (UPM)
  • Autor: Lourdes Camara Garcia (UPM)
  • Autor: Maria Dolores Carro Travieso (UPM)
  • Autor: Encarnacion Jimenez Moreno (UPM)
  • Autor: sara Mirzaie Goudarzi
  • Autor: Gonzalo Gonzalez Mateos (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Producción Agraria
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