The marine algae Sargassum spp. (Sargassaceae) as feed for sheep in tropical and subtropical regions
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Universidad de Costa Rica
2009
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| _version_ | 1876471393786265600 |
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| author | Alejandro Marín |
| author_facet | Alejandro Marín |
| contents | The marine algae Sargassum spp. (Sargassaceae) as feed for sheep in tropical and subtropical regions Alejandro Marín Margarita Casas-Valdez Silvia Carrillo Hugo Hernández Alberto Monroy Leonor Sanginés Fernando Pérez-Gil Biología sheep Sargassum marine algae digestibility ruminal fermentation The objective of this study was to evaluate Sargassum meal as feed for sheep through the measures of in vivo digestibility, dry matter degradability, pH, ammonia and volatile fatty acids in rumen. The Sargassum algae used in this experiment were collected at the end of spring, when they are more abundant, bigger, and have completed their reproductive cycle. Four tons (wet weigth) were collected manually from the intertidal zone of La Paz bay, Baja California Sur, Mexico. These algae were sun-dried and ground in a hammer mill to obtain the Sargassum meal. Four fistulated Pelibuey sheep, were fed daily with diets containing the marine algae (MA) at different levels (0, 10, 20 and 30 %), using a 4 x 4 Latin-square design experiment. Feed intake was not affected (p>0.05). Water consumption and urine excretion increased with MA (p<0.05; r²=0.54 and r²=0.74, respectively). In all treatments dry matter digestibility was of 74%-79%, and crude protein digestibility was of 85%-88%. Acid detergent fiber (59%-65%) and neutral detergent fiber (55%-66%) digestibility were greater in all treatments with MA. Ruminal pH was greater in all groups fed with MA (p<0.05). Ammonium concentration was not influenced (p>0.05) by MA. Ruminal volatile fatty acids decreased in all MA groups (p<0.05). The marine algae Sargassum spp. can be used as a feed supplement for sheep, especially in tropical and subtropical regions where these marine algae are available. Rev. Biol. Trop. 57 (4): 1271-1281. Epub 2009 December 01. 2009 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44918949029 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.4 Vol.57 |
| format | Artículo científico |
| id | redalyc_44918949029 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Universidad de Costa Rica |
| spellingShingle | The marine algae Sargassum spp. (Sargassaceae) as feed for sheep in tropical and subtropical regions Alejandro Marín Biología sheep Sargassum marine algae digestibility ruminal fermentation The marine algae Sargassum spp. (Sargassaceae) as feed for sheep in tropical and subtropical regions Alejandro Marín Margarita Casas-Valdez Silvia Carrillo Hugo Hernández Alberto Monroy Leonor Sanginés Fernando Pérez-Gil Biología sheep Sargassum marine algae digestibility ruminal fermentation The objective of this study was to evaluate Sargassum meal as feed for sheep through the measures of in vivo digestibility, dry matter degradability, pH, ammonia and volatile fatty acids in rumen. The Sargassum algae used in this experiment were collected at the end of spring, when they are more abundant, bigger, and have completed their reproductive cycle. Four tons (wet weigth) were collected manually from the intertidal zone of La Paz bay, Baja California Sur, Mexico. These algae were sun-dried and ground in a hammer mill to obtain the Sargassum meal. Four fistulated Pelibuey sheep, were fed daily with diets containing the marine algae (MA) at different levels (0, 10, 20 and 30 %), using a 4 x 4 Latin-square design experiment. Feed intake was not affected (p>0.05). Water consumption and urine excretion increased with MA (p<0.05; r²=0.54 and r²=0.74, respectively). In all treatments dry matter digestibility was of 74%-79%, and crude protein digestibility was of 85%-88%. Acid detergent fiber (59%-65%) and neutral detergent fiber (55%-66%) digestibility were greater in all treatments with MA. Ruminal pH was greater in all groups fed with MA (p<0.05). Ammonium concentration was not influenced (p>0.05) by MA. Ruminal volatile fatty acids decreased in all MA groups (p<0.05). The marine algae Sargassum spp. can be used as a feed supplement for sheep, especially in tropical and subtropical regions where these marine algae are available. Rev. Biol. Trop. 57 (4): 1271-1281. Epub 2009 December 01. 2009 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44918949029 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.4 Vol.57 |
| title | The marine algae Sargassum spp. (Sargassaceae) as feed for sheep in tropical and subtropical regions |
| topic | Biología sheep Sargassum marine algae digestibility ruminal fermentation |
| url | https://www.redalyc.org/articulo.oa?id=44918949029 |