Loading...
Please wait, while we are loading the content...
Similar Documents
Nonruminant Nutrition: Feed Ingredients
| Content Provider | Semantic Scholar |
|---|---|
| Author | Agiang, E. A. Cruz, Valquíria Cação Da Zanetti, Leonardo Henrique Polycarpo, Gustavo Do Valle Oliveira, Raphael Fortes De Brichi, André Luís Coneglian Valho Sabbag, Omar Jorge Polycarpo, C. C. Do Valle |
| Copyright Year | 2012 |
| Abstract | The prohibition of most synthetic growth promoters is steering increasing interest in phytobiotics as possible alternatives. Phytobiotics are heterogeneous groups of feed additives originating from fruits, herbs and spices. This study evaluated the effects of Aspilia africana leaf (AaL) products on nutrients digestibility and physio-chemical properties of intestinal segments in quails. A total of 420, 1-wk-old quails were assigned to 14 treatments; representing supplementation with 0% (control), 2.5, 5.0, 7.5 or 10% of either meal, aqueous or ethanolic extract of AaL, or 0.02 g/ kg terramycin (antibiotic) to a corn and soybean meal based-diet for 42 d (n = 30 chicks per treatment). Each treatment had 3 pens of 10 chicks/ pen. On d 36, a digestibility trial involving 12 quails per treatment was initiated. Feed and fecal samples were collected for 4 d and the apparent nutrient digestibility for crude protein, fat, fiber and ash were analyzed. On d 42, quails were euthanized and their intestinal tracts were excised and segmented. The weight, length and density of each segment were measured and 1 mL of digesta was obtained for pH determination. Data were subjected to a 2-way ANOVA. Results indicated that, compared with the control, 5 to 7.5% AaL and antibiotic improved (P ≥ 0.05) nutrient digestibility in quails; values were higher in quails fed 5 to 7.5% AaL than those on the antibiotic for digestible protein (2.84% v 0.50%), fat (4.82% v 1.42%) and fiber (4.15% v 3.48%). Intestinal length and densities were not affected (P ≥ 0.05) by dietary treatments. Intestinal weights were reduced (P ≤ 0.05) by an average of 22.21% and 32.64% in quails fed AaL and terramycin diets, respectively. Also, the pH of contents from the cecum and jejunum were reduced (P ≤ 0.05) by 0.88 and 0.50 units, respectively, in AaL-fed quails. Comparatively, the aqueous extract exerted higher phytogenic effects on the physio-chemical properties of the intestinal segments in quails than the meal or ethanolic extract. These findings indicate that dietary supplementation with 5 to 7.5% aqueous extract of Aspilia africana leaf could modulate the intestinal characteristics of quails, thus enhancing nutrient digestion. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.jtmtg.org/JAM/2012/abstracts/308.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
