Browsing by Author "Sánchez Gavilanes, Daniela Elizabeth"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    Degradación ruminal de la materia seca y comportamiento productivo de ovinos consumiendo forraje de chenopodium quinoa
    (2016) Sánchez Gavilanes, Daniela Elizabeth; Barros Rodríguez, Marcos Antonio
    The aim of this research was to determine the effect of the intake of residues post harvest of Chenopodium quinoa on the yield productive, apparent digestibility of DM, ruminal degradation of DM and in vitro gas production in sheep. The experiment was conducted at the Faculty of Sciences Agricultural - UTA, using two groups of sheep creole males, the first group of 12 sheep, with an age of 6 months and a weight average of 20. 88±1. 04 Kg of LW, they went to measure yield results by direct method, recording controls of weights, both animals and their consumption of food, over a period of 75 days included 15 days of adaptation and apparent digestibility in vivo in metabolic cages method. A second group of 6 sheep older than 8 months, cannulated in the rumen and with an average weight of 28.88±1.04 Kg of LW, for dry matter (DM) degradation was determined using the technique described by Ørskov, et al. (1980) and finally in vitro gas production. The sheep was distributed randomly with two treatments T1: (95.8% P. clandestinum), T2: (75.8% P. clandestinum and 20% bran of C. quinoa). The voluntary intake for T2 was higher in 152 g DM/day (P = 0.0428) to T1. The voluntary intake by Kg PV0.75 showed no significant difference (P=0.1385) among treatments. Feed conversion was lower (P = 0.0178) in T2 to T1 (7:1 to 9:1 respectively). The weight gain between treatments showed significant, being higher T2 by 29,35 g/Kg DM difference. The apparent digestibility of the DM not showed differences (P = 0.2689) among the treatments. For in vitro gas production (ml/0.5 g fermentable DM) was lower in T2 (P = 0.0215) with respect to T1. Ruminal degradation parameters showed no differences between treatments (P > 0.05). The soluble fraction (a) showed differences (P < 0.05) between forage being the kikuyo the highest percentage (30%). Insoluble but potentially degradable fraction (b) shows differences (P < 0.05) between forage, where the highest percentage of degradation was kikuyo (57%). Regarding of the rate of degradation (c) as a percentage per hour showed no significant (P > 0.05) between forage. It can be concluded that fodder residues of (C quinoa) can be included by 20% in the diet of sheep for LW moderate gain, when using low quality as is the case with the Kikuyu grass (P. clandestinum); today is a basic and traditional diet in sheep production in the country. Key words: digestibility, gas production, in-vitro, in-situ, voluntary intake, sheep.