Calidad nutritiva de las arbustivas forrajeras Malvaviscus arboreus, Codariocalyx gyroides y Cratylia argentea en la zona de ladera de los Departamentos de Cauca y Valle, Colombia

Abstract

<p>Después de evaluar la adaptación de 25 especies arbustivas en fincas ubicadas en zonas de ladera del trópico medio de los departamentos de Cauca y Valle del Cauca, se realizó el estudio de consumo y caracterización bromatológica e las tres especies con mayor potencialidad en sistemas productivos mixtos (ganadería doble propósito-agricultura): <em>Malvaviscus arboreus</em>, <em>Cratylia argentea </em>y <em>Codariocalyx gyroides</em>. La evaluación de calidad y consumo se realizó en ovejos africanos utilizando jaulas metabólicas que, para facilitar el manejo, fueron ubicadas en instalaciones del Centro de Investigaciones de CORPOICA en Palmira, 3° 31I N, 76° 19I W; 1.000 m.s.n.m.; 1.014 mm/año de precipitación, 24° C, brillo solar 5.8 h/d, humedad relativa 75%. Se ofreció una ración básica de heno de <em>Brachiaria dictyoneura </em>de baja calidad nutritiva, 3.6% de proteína cruda, equivalente a 100 g M.S./ kg0.75, junto con 80 g M.S./kg0.75 de follaje de cada una de las tres leguminosas fraccionadas en dos ofertas durante siete días de medición y previo acostumbramiento. De acuerdo con el índice predictivo de valor relativo (RFV = 88.9 – (0.119 * %FDA) (120 / %FDA) / 1.29), según Mertens (1993), la leguminosa arbustiva <em>Malvaviscus arboreus </em>reportó el consumo más alto, 94.53 g MS/kg0.75; seguido de <em>Cratylia </em>argentea, 83 g MS/kg0.75,; por último, <em>Codariocalyx gyroides</em>, 81.82 g MS/kg0.75. DIVMS y DTCIA correlacionaron positivamente en forma significativa mientras que FDN, FDNe, FDA correlacionaron negativamente con los valores encontrados para consumo.</p><p><strong><br /></strong></p><p><strong>Nutrition quality of shrub species <em>Malvaviscus arboreus</em>, <em>Codariocalyx gyroides </em>and <em>Cratylia argentea </em>in the hillside area of the Departments of Cauca and Valle</strong>, <strong>Colombia</strong>.</p><p>A study was conducted in order to evaluate the nutritional composition and intake of the shrub species <em>Malvaviscus arboreus</em>, <em>Cratylia argentea </em>and <em>Codariocalyx gyroides</em>, growing under hillside conditions in the Cauca and Cauca Valley regions of Colombia. In a previous evaluation of the nutritional quality of 25 shrub species, these three species showed the highest forage potential in mixed productive systems. The present evaluation was carried out using African sheep housed in metabolic chambers and was conducted at the Palmira CORPOICA Research Center, located at 3° 31I N, 76° 19I W, 1.000 masl with 1014 mm of precipitation/year, 24° C, 5.8 h/d solar bright and 75% of relative humidity. For seven days, after diet animal adaptation to the diet, animal received a basal diet of a low nutritive quality (3.6% of raw protein) <em>Brachiaria dictyoneura </em>hay, at an equivalent of 100 g DM/ kg0.75 per day. Additionally, animals received 80 g DM/ kg0.75 per day of one of the three legumes divided in daily portions. According to the relative feeding value predictive index (RFV=88.9 - (0.119*%FDA)(120/ %FDA)/1.29, Mertens, 1993), the shrub legume <em>M. arboreus </em>showed the highest intake index, (94.53) followed by <em>Cratylia argentea </em>(83) and <em>Codariocalyx gyroides </em>(81.82) g DM/kg0.75. IVDMD and DTCIA had a significant positive correlation, while NDF, eNDF and ADF correlated negatively with the observed intake values.</p>

Nutritional quality of Piptocoma discolor and Cratylia argentea as a non-timber forest products for animal feed in the Caquetá province

“…In the current study, mean ASH and organic matter (OM) contents were found to be within satisfactory limits (Table 1). The ASH results for C. argentea (8.30%) and P. discolor (7.60%) are lower than those reported in previous studies by Celis et al, (2004) and Riascos et al, (2020) respectively. The variation in the results may be influenced by characteristics such as habitat and soil conditions where sampling was conducted (Hussain & Durrani, 2009).…”