Alireza Karampour; Farokh Kafilzadeh
Volume 18, Issue 3 , October 2016, , Pages 491-500
Abstract
This study was conducted to determine the effects of addition of the pomegranate seed oil (PSO) in the diet on growth performance, diet digestibility and rumen fermentation parameters of fattening lambs. Twenty one Sanjabi lambs, with average body weight of 27.5±2.6 kg and 3 months of age, were ...
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This study was conducted to determine the effects of addition of the pomegranate seed oil (PSO) in the diet on growth performance, diet digestibility and rumen fermentation parameters of fattening lambs. Twenty one Sanjabi lambs, with average body weight of 27.5±2.6 kg and 3 months of age, were used in a completely randomized design with 3 treatments and 7 replicates.The experimental treatments included diet free of PSO (control diet), and diets containing 2 and 4% of PSO. Daily feed intake, diet digestibility and rumen fermentation parameters were measured by standard methods. The lambs were weighed at the beginning and the end of the finishing period for estimation of average daily gain (ADG). The DMI in the lambs fed on the diets containing PSO was higher than that of control (P<0.05). There was no differences along treatments concerning ADG, although, in lambs receiving PSO thetrend was to be increased. Dry matter and organic matter digestibility in the lambs fed on 4% PSO were higher than those of the other groups (P<0.05). Concentrations of volatile fatty acids (VFAs) were not affected except valeric acid, however, incorporation of 4% PSO to the diet increased molar percentage of propionic acid and decreased acetate to propionate ratio, significantly. Ammonia nitrogen concentration was not affected by adding PSO to diet. The results of this experiment suggest that pomegranate seed oil has potential to improve the digestibility and ruminal fermentation efficiency of the diet of fattening lambs.
A. Karampour; F. Hozhabri; F. Kafilzadeh
Volume 14, Issue 2 , January 2012, , Pages 11-20
Abstract
The effect of Aspergillus niger waste, a by product of citric acid extraction (yeast waste) on in vitro digestibility of alfalfa hay at different times of incubation (24 and 48h) and fattening performance of male lambs studies. Different levels (five, 10, 15 and 20 percent) of yeast waste were added ...
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The effect of Aspergillus niger waste, a by product of citric acid extraction (yeast waste) on in vitro digestibility of alfalfa hay at different times of incubation (24 and 48h) and fattening performance of male lambs studies. Different levels (five, 10, 15 and 20 percent) of yeast waste were added to alfalfa hay and subjected to the in vitro digestibility trial. In fattening trial, twenty Sanjabi lambs (20.8 kg initial BW, three months of age) divided into two groups in a CRD design. The use of yeast waste of different levels, increased Dry matter (DM) and organic matter (OM) digestibility of alfalfa hay at initial 24 h of incubation (P< 0.05) but the difference in digestibility at the last 48 h of incubation was not significant. Average daily gain, FCR and DM intake and carcass parts between treatments were not significant.