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by
M. Chaji |
Total Records (
3 ) for
M. Chaji |
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T. Mohammadabadi
,
M. Danesh Mesgaran
,
A.R. Heravi Moussavi
,
M.R. Nasiri
and
M. Chaji
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The objective of this study was to determine in situ dry matter (DM) and crude protein (CP) degradability of sunflower meal containing 25 and 165 g fat kg-1 DM and untreated and treated with sodium hydroxide (NaOH, 40 g kg-1 DM) and formaldehyde ( 30 and 60 g kg-1 DM). DM and CP degradation of the samples were determined using in situ technique in two fistulated Holstein steers (400±12 kg, body weight) and data were analysed to estimate soluble fraction (a), potentially degradable fraction (b), degradation rate (c) and effective degradability (ED). Formaldehyde decreased (a) fraction of DM (p<0.05). NaOH treated high fat sunflower meal had the highest (a) fraction and the lowest of (b) fraction of DM, (0.43 and 0.31, respectively). Formaldehyde and NaOH significantly decreased degradation rate (c) of DM. Formaldehyde (30 g kg-1 DM) treated low fat sunflower meal had the lowest ED of DM (0.44, k = 0.03 h 1) (p<0.05). Fraction of (a) and ED of DM of low fat sunflower meal was less than high fat sunflower meal. Formaldehyde and NaOH significantly were affected fractions of a, b, c and ED of CP (p<0.05). Fraction of (a) of CP decreased by formaldehyde and NaOH. Treatment of sunflower meal (low and high fat) with formaldehyde at 60 g kg-1 DM resulted in the highest (b) fraction and the lowest of (c) fraction and ED of CP. Crude protein (b) fraction of low fat sunflower meal was more than high fat sunflower meal but there was not any significant difference for (a) fraction and ED. DM and CP disappearance after 24 h was decreased by formaldehyde and NaOH. Therefore, it is appears that formaldehyde, NaOH and fat content of sunflower meal can affect DM and CP degradability parameters. |
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T. Mohammadabadi
,
M. Danesh Mesgaran
and
M. Chaji
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This trial was conducted to determine the effect of diets containing treated alfalfa silage with hydrochloric acid (HCl) (12 g kg-1 DM) or anionic salts (7.51% Sulfate, 29.8% Chloride, 11.49% Calcium and 2.98% Magnesium) on pH and mineral concentration (Ca, P, Cl, Mg, Na and K) of blood and urine of Holstein close-up dairy cows. In addition, milk yield and retained placenta after parturition (6 weeks) were recorded. Treatments were; Basal Diet (BD; corn silage (17 kg), alfalfa hay (2.4 kg), wheat straw (0.7 kg) and concentrate (5.5 kg)), HCl treated alfalfa silage (12 g kg-1 DM) substituted of alfalfa hay in basal diet (BDH) and basal diet + anionic salts mixture (BDA, 300 g/head/d). Experimental diets were fed to 12 Holstein dry cows (n = 4) during 18-33 days before calving. Animals were fed individually in tie stall as ad libitum. Feed intake was recorded daily and samples of blood (via jugular vein) and urine were taken at the pre and two weeks after the feeding. Samples were analyzed for pH and minerals concentrations. Results indicated that the effect of diets on urinary pH (7.06, 6.6 and 6.79 for treatments BD, BDH and BDA, respectively), blood pH and blood and urine minerals concentrations was not significant (p>0.05). Cows fed acidified diets had lower placenta excretion time (h) and more milk production than those of basal diet. It is concluded that blood and urine acid-base properties did not affected by the experimental diets when included by HCl or anionic salts. |
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M.R. Ghorbani
,
J. Fayazi
and
M. Chaji
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This experiment was conducted to investigate the effect of replacement of Soybean Meal (SBM) with Rape seed Meal (RSM) using two type enzymes on broiler performance. Three hundred sixty Ross strain chickens were used in a 2x2x3 factorial arrangement with two levels of Phyzyme (0 and 500 FTU/kg diet), two levels of Grindazyme (0 and 0.17%) and three levels of RSM (0, 25 and 50% replaced to SBM protein) in a completely randomized design three replicates and 10 birds per replicate. Body Weight Gain (BWG), Feed Intake (FI) and Feed Conversion Ratio (FCR) were measured weekly. Carcass weight and carcass components weight recorded at the end of trial (day 42). The results of this experiment indicated that FI, BWG and feed efficiency of broiler were significantly (p<0.05) decreased by increasing RSM in all period of experiment. Use of RSM significantly decrease breast and abdominal fat weight of broiler (p<0.05). In grower and whole period of experiment the BWG (1353.10 vs 1285.36 g in grower and 1861.30 vs 1798.92 g in whole period) and FI (2638.28 vs 2589.13 g in grower and 4328.44 vs 3368.93 g in whole period) of broiler were significantly (p<0.05) increased by addition of Grindazyme, but were not affected by supplementation of Phytase in the diet. Exception abdominal fat weight, there was not significant effect for phytase and Grindazyme on carcass and carcass component weight. Therefore, it was concluded that NSP-degrading enzymes and Pytase may be incorporated in RSM based broiler diet for profitable production. |
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