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Articles by Ashraf Khashroum
Total Records ( 2 ) for Ashraf Khashroum
  Motasem AL-Massad , Ramadan Al-Shdefat and Ashraf Khashroum
  This experiment was conducted to determine the effect of microbial phytase supplementation accompanied with different levels of dietary calcium on the performance and egg shell quality of laying hens. A factorial design of four levels of calcium (3.8, 3.4, 3.0 and 2.6%) and two levels of microbial phytase (0 and 300 FTU kg-1) was carried out. A total of 72 LOHMAN LSL WHITE laying hens were used. The eight dietary treatments consisted of the corn-SBM basal diet. The metabolizable energy, protein and marginal level of phosphorus were maintained constant in all dietary treatments at 11.56 MJ kg-1, 16.3 and 0.33% TP (0.12% NPP), respectively. Performance and eggshell quality were measured from the age of 22 to 38 weeks. Egg mass, feed efficiency, body weight, eggshell percentage and eggshell density were reduced significantly when hens were fed on 2.6% of dietary calcium level regardless of the presence or absence of phytase. The average eggshell density and shell percentage were significantly increased when hens were fed 3.4% of the Ca level in the presence of phytase. Furthermore, a significant interaction between treatment and age was observed on the eggshell quality. Egg production, egg weight, egg mass, feed intake, feed efficiency and body weight were not affected by phytase enzyme. The information obtained from this experiment indicated that 0.33% TP (0.12% NPP) appears to be sufficient for maintaining production performance and eggshell quality in LOHMAN LSL WHITE laying hens fed the corn-SBM diet containing 3.4% calcium and supplemented with phytase.
  Khalaf Alhussaen , Emad I. Hussein , Khalid M. Al-Batayneh , Mahmoud Al-Khatib , Wesam Al Khateeb , Jacob H. Jacob , Mohamad A. Shatnawi , Ashraf Khashroum and Mohamed I. Hegazy
  Garlic extract is well known for its antibacterial and antifungal activity and is used to treat several plant pathogens. Pythium sp. was isolated from infected tomato seedlings grown in Jordan Valley (Jordan) and the species was identified as Pythium ultimum using morphological and molecular methods. The fungicidal activity of garlic extract with different concentrations in controlling the growth of the isolated Pythium sp. was determined in vitro. The control activity was highly dependent on Garlic extract concentration. For instance, undiluted garlic extract showed the highest control activity with no growth as compared to the biotic control without the extract whereas diluted garlic extracts 10 and 5% reduced the fungal growth to 15.5 and 41%, respectively. The results of this study show that garlic extract could successfully control Pythium ultimum on tomato seedlings and is considered as an environmentally friendly product.
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