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| Articles
by
Amir Reza Safaei |
Total Records (
3 ) for
Amir Reza Safaei |
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Afshar Mirzaei-Aghsaghali
,
Naser Maheri-sis
,
Ali Mirza-Aghazadeh
,
Amir Reza Safaei
,
Amir-Farhang Houshangi
and
Abolfazl Aghajanzadeh-Golshani
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The aim of the study was to determine the chemical composition and ruminal
degradation characteristics of two alfalfa varieties including Kareyonge
(KAR) and Hamedani (HAM) grown in West Azerbaijan in Iran, using in
situ technique. The nutritional parameters were Dry Matter (DM), Organic
Matter (OM) and Crude Protein (CP). Nylon bags filled with 5 g of each
forage were suspended in the rumen of three cannulated Gezel rams immediately
before feeding and incubated for 7 different times (0, 4, 8, 16, 24, 48
and 72 h). Parameters for degradation kinetics included readily degraded
fraction, slowly degraded fraction, lag time and fractional rate of passage.
No significant difference found between DM, CP, Ash and Ether Extract
(EE) of two alfalfa varieties although the difference for Crude Fiber
(CF), Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) were
significant (p<0.01).The degradability of DM, OM, CP and Effective
Rumen Degradable Protein (ERDP) at a rate of 0.05/h for KAR and HAM varieties
were 54.2, 52.16, 40.1%, 72.57 g kg-1 DM and 56.97, 54.9, 39.25%,
89.4 g kg-1 DM, respectively. Calculations based on in situ
degradability indicate that HAM alfalfa can have a higher inclusion than
KAR alfalfa in diets for ruminants because of lower NDF, greater cell
contents and ERDP. |
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Naser Maheri-Sis
,
Afshar Mirzaei-Aghsaghali
,
Ali Mirza-Aghazadeh
and
Amir Reza Safaei
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The aim of this experiment was to determine the potential nutritive value of Hamedani (HAM) and Kareyonge (KAR) using the chemical composition, Dry Matter Digestibility (DMD), Organic Matter Digestibility (OMD) and Metabolizable Energy (ME) content. Each of the two alfalfa varieties were offered ad libitum to three Gezel rams. No significant difference found between Dry Matter (DM), Crude Protein (CP), Ash and Ether Extract (EE) contents of two alfalfa varieties, although the difference for Crude Fiber (CF), Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) were significant (p<0.001). Dry Matter Intake (DMI), Organic Matter Intake (OMI) and Crude Protein Intake (CPI) were similar in HAM and KAR hays (p>0.05). Dry Matter Digestibility (DMD) and organic matter digestibility in HAM hay were significantly (p<0.01) higher than that of KAR hay, whereas Crude Protein Digestibility (CPD) in HAM hay was similar than that KAR hay (p>0.05). Digestible Organic Matter in Dry Matter (DOMD) and ME intake in HAM were significantly (p<0.01) higher than that KAR hay. Calculations based on in vivo digestibility indicate that HAM alfalfa can have a higher inclusion than of KAR alfalfa in diets for ruminants because of lower cell wall (NDF and ADF) contents, greater DOMD and ME intake. |
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Naser Maheri-Sis
,
Afshar Mirzaei-Aghsaghali
,
Amir Reza Safaei
,
Ali Mirza-Aghazadeh
and
Ghassem Habibi Bibalani
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The nutritive value of quackgrass (Agropyron repens L.) was evaluated at late maturity. Rumen mixed microbe inoculums were taken from two fistulated Gezel rams. Samples of quackgrass were incubated with rumen fluid to determine gas production. Gas production was measured at 2, 4, 6, 8, 12, 24, 48, 72 and 96 h. The results showed that the Crude Protein (CP), Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) content of quackgrass hay were 8.9, 69.5 and 38.3%, respectively. Organic Matter Digestibility (OMD) and Metabolizable Energy (ME) content were 43.54% and 6.58 MJ kg1 DM, respectively. In conclusion, it seems that quackgrass could be used as an efficient ruminant feed. |
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