Showing 3 results for Fazaeli
H. Fazaeli,
Volume 12, Issue 43 (spring 2008)
Abstract
This study was conducted to assess the effect of culturing oyster mushroom (Pleurotus florida) on the nutritive value of wheat straw. In a completely randomized design, chemical composition and in vitro digestibility of untreated and fungal treated wheat straw were measured by the following treatments: 1) untreated wheat straw (UWS) 2) fermented wheat straw before mushroom fruiting (FTWS) and 3) fermented wheat straw after mushroom harvesting (SPWS), with 4 replicates. In addition, the in vivo digestibility and voluntary intake were determined using 4 cows and 4 sheep and nutritive value index was estimated. The crude protein and in vitro digestibility increased whereas organic matter and cell wall components decreased significantly (P<0.05) in FTWS and SPWS. In vivo digestibility and voluntary intake increased in FTWS when fed to sheep or cow (P<0.05) but no significant differences were found between SPWS and UWS. The digestible dry mater and organic mater intake (g/kg W0.75) were significantly higher (P<0.05) in cow than sheep. The significantly (P<0.05) highest amount of nutritive value index was obtained for FTWS fed to cow and the lowest amount was found for SPWS when fed to sheep. It can be concluded that culturing Pleurotus florida on wheat straw can improve its nutritive value before mushroom fruiting .
H Shahbazi, A Sadeghi, H Fazaeli, Gh Reis Ali, M Chamani,
Volume 13, Issue 47 (4-2009)
Abstract
In this research, samples of sugarcane bagasse were irradiated with various amounts (0, 100, 200 and 300 Kilogray) in an electron accelerator (TT200) to evaluate the effects of electron-beam irradiation on dry matter, neutral-detergent fiber (NDF) and acid-detergent fiber (ADF) degradability parameters. The first samples were dried and then ground for chemical analysis. The ruminal degradation parameters of the samples were measured in fistulated cow 3 (400 kg) at times of 0, 6, 12, 24, 48, 72 and 96 h by the terylene bag method. Data were fitted to non-linear degradation model of Orskov and McDonald to calculate degradation parameters of DM, NDF and ADF. The statistical analysis of degradation of various parameters and effective degradability was accomplished by using the GLM procedure of SAS. After variance analysis, the means were compared with Duncan,s new multiplerange test by using a completely randomized design. The washout fractions of DM as well as NDF and ADF increased linearly (P<0.05) with increasing electron irradiation dose, whereas the potentially degradable fractions of NDF and ADF decreased at first, and then, increased. Also, the degradation rate of the b fraction of dry matter increased. Effective degradability of DM, NDF and ADF increased linearly (P<0.05) with increasing irradiation dose. Electron irradiation at doses of 100, 200 and 300 kGy increased the effective degradability of DM, NDF and ADF at rumen outflow rate of 0.05/h (r) by about 7, 11 and 16% 2, 5 and 7% 3, 7 and 10%, respectively.
H Fazaeli, M Nosrat Abadi, K Karkodi, A Mirhadi,
Volume 13, Issue 48 (7-2009)
Abstract
This research was conducted to study the nutritive value of Jerusalem artichoke (JA) as animal feed. The aerial part of the JA plant was harvested, at full bloom stage, and then chopped and dried. The chopped JA hay included 0.0, 10, 20, 30 and 40 % of alfalfa hay, used as experimental diets, and tested for in vitro digestibility. In a changeover experiment with Latin square based design the in vivo digestibility was studied by sheep. The samples of dried JA forage as well as the experimental diets were collected and analyzed chemically. The nutrient contents of JA were relatively similar to alfalfa hay except for the crude protein that was lower in JA. The in vitro dry mater and organic mater digestibility were not affected by the levels of JA in the diets, but the digestible value reduced (p<0.05) when the JA ratio was increased to the 40% of the diet. The in vivo digestibility of dry mater, organic mater and fiber fractions was decreased in the diet containing 40 percent JA however, total digestible nutrients and metabolisable energy were not significantly different among the treatments. It may be concluded that nutritive value of JA is similar to alfalfa hay, when it is used up to 30% instead of the alfalfa hay based diet
