Evaluation of acacia macracantha pods in balanced ration for growing rabbits
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad de Costa Rica
2020
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| _version_ | 1876482140301950976 |
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| author | Miguel Alejandro Espejo-Díaz |
| author_facet | Miguel Alejandro Espejo-Díaz |
| contents | Evaluation of acacia macracantha pods in balanced ration for growing rabbits Miguel Alejandro Espejo-Díaz Gustavo Enrique Nouel-Borges Agrociencias intake rabbits digestibility Acacia macracantha pods attenuation of secondary compounds The attenuation of secondary compounds in Uveda pods (Acacia macracantha, Am) were evaluated for potential use in ration for rabbits (Oryctolagus cuniculus mestizos California x Nueva Zelanda). Test 1: a completely random factorial arrangement, soaking temperature factor (25, 45 and 65°C) and water soaking time factor (0, 6, 12, 24 and 48 h). Test 2: consumption, digestibility and weight gain were determined by evaluating baseline ration (crude protein 183 g.kg-1 and NDF 467 g.kg-1, cornmeal and soybean mixture, Bermuda hay, soybean oil, minerals and amino acids) and serving containing 30% attenuated Am and varying amounts of basal raw materials (crude protein 184 g.kg-1 and NDF 511 g.kg-1). Twelve rabbits were used per treatment (live weight 969±48.7 g and age of 55 d). After the 7-day adaptation period, food intake was recorded and feces collected from 62 to 89 days of age. From the first trial, most effective secondary compound reduction was soaking of Am pods for 48 hours at 65°C. The initial content reductions were: 72.4% for total polyphenols, 82.1% for simple phenols, 63.3% for total tannins, 90.8% for condensed tannins and 74.5% for tannins that precipitate proteins. In trial 2: food intake was higher for Am ration (128 vs 107 g.d-1, p<0.01), with gross energy (11.0 vs. 11.7 Mj.kg-1, p<0.001) and digestibility of Crude protein (66.9 vs 76.4, p<0.001) lower compared to rabbits fed basal ration. On the contrary, fiber digestibility was higher in rabbits fed Am ration (p<0.01). In conclusion, it is feasible to include 30% of attenuated Am pods for rabbits, however more experiments are required to confirm their effect on production. 2020 otro 0377-9424 https://www.redalyc.org/articulo.oa?id=43663511006 https://www.redalyc.org/journal/436/43663511006/ https://www.redalyc.org/journal/436/43663511006/html/ https://www.redalyc.org/journal/436/43663511006/43663511006.epub https://www.redalyc.org/journal/436/43663511006/movil 10.15517/RAC.V44I1.40005 en http://www.redalyc.org/revista.oa?id=436 Agronomía Costarricense application/pdf Universidad de Costa Rica Agronomía Costarricense (Costa Rica) Num.1 Vol.44 |
| format | Artículo científico |
| id | redalyc_43663511006 |
| institution | Redalyc |
| language | en |
| publishDate | 2020 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Evaluation of acacia macracantha pods in balanced ration for growing rabbits Miguel Alejandro Espejo-Díaz Agrociencias intake rabbits digestibility Acacia macracantha pods attenuation of secondary compounds Evaluation of acacia macracantha pods in balanced ration for growing rabbits Miguel Alejandro Espejo-Díaz Gustavo Enrique Nouel-Borges Agrociencias intake rabbits digestibility Acacia macracantha pods attenuation of secondary compounds The attenuation of secondary compounds in Uveda pods (Acacia macracantha, Am) were evaluated for potential use in ration for rabbits (Oryctolagus cuniculus mestizos California x Nueva Zelanda). Test 1: a completely random factorial arrangement, soaking temperature factor (25, 45 and 65°C) and water soaking time factor (0, 6, 12, 24 and 48 h). Test 2: consumption, digestibility and weight gain were determined by evaluating baseline ration (crude protein 183 g.kg-1 and NDF 467 g.kg-1, cornmeal and soybean mixture, Bermuda hay, soybean oil, minerals and amino acids) and serving containing 30% attenuated Am and varying amounts of basal raw materials (crude protein 184 g.kg-1 and NDF 511 g.kg-1). Twelve rabbits were used per treatment (live weight 969±48.7 g and age of 55 d). After the 7-day adaptation period, food intake was recorded and feces collected from 62 to 89 days of age. From the first trial, most effective secondary compound reduction was soaking of Am pods for 48 hours at 65°C. The initial content reductions were: 72.4% for total polyphenols, 82.1% for simple phenols, 63.3% for total tannins, 90.8% for condensed tannins and 74.5% for tannins that precipitate proteins. In trial 2: food intake was higher for Am ration (128 vs 107 g.d-1, p<0.01), with gross energy (11.0 vs. 11.7 Mj.kg-1, p<0.001) and digestibility of Crude protein (66.9 vs 76.4, p<0.001) lower compared to rabbits fed basal ration. On the contrary, fiber digestibility was higher in rabbits fed Am ration (p<0.01). In conclusion, it is feasible to include 30% of attenuated Am pods for rabbits, however more experiments are required to confirm their effect on production. 2020 otro 0377-9424 https://www.redalyc.org/articulo.oa?id=43663511006 https://www.redalyc.org/journal/436/43663511006/ https://www.redalyc.org/journal/436/43663511006/html/ https://www.redalyc.org/journal/436/43663511006/43663511006.epub https://www.redalyc.org/journal/436/43663511006/movil 10.15517/RAC.V44I1.40005 en http://www.redalyc.org/revista.oa?id=436 Agronomía Costarricense application/pdf Universidad de Costa Rica Agronomía Costarricense (Costa Rica) Num.1 Vol.44 |
| title | Evaluation of acacia macracantha pods in balanced ration for growing rabbits |
| topic | Agrociencias intake rabbits digestibility Acacia macracantha pods attenuation of secondary compounds |
| url | https://www.redalyc.org/articulo.oa?id=43663511006 https://www.redalyc.org/journal/436/43663511006/ https://www.redalyc.org/journal/436/43663511006/html/ https://www.redalyc.org/journal/436/43663511006/43663511006.epub https://www.redalyc.org/journal/436/43663511006/movil |