جستجوی مقالات مرتبط با کلیدواژه "پنی سیلیوم" در نشریات گروه "دامپزشکی"

Unhygienic poultry feedstuffs can lead to nutrient losses and detrimental effect on poultry production and public health.
This study was to investigate the fungal contamination of poultry feed and its ingredients in broiler farms in Torbat Heydarieh, Khorasan Razavi province, Iran.
A total of 240 poultry feed samples comprising three different feeds were collected and examined using dilution plating technique. Preparations of all samples from successive dilutions were prepared; and then 0.1 ml of each dilution was cultured on the surface of Potato Dextrose Agar supplemented with Chloramphenicol and was incubated at 27 °C for 7 days. Fungal colony counting was performed based on CFU/gr. The fungi were identified by gross and microscopic features. Statistical analysis of the data were done using SPSS software version 21.
In examined samples, fungal contamination was detected in 205 samples (85/14 %) out of 240 samples. The corn (32/5%) was most contaminated feed, followed by soybean (29/16%) and finished feed (23/75%). The predominant fungi isolated were Fusarium spp. (41/3 %), Penicillium spp. (37/9%), Cladosporium spp. (21.3 %), Paecilomyces spp. (17.1%), Aspergillus fumigatus (13/3 %), Aspergillus niger (12.9%) and Yeast spp. (12.9 %). Frequency of toxin -forming fungi was significantly higher than the non- toxin -forming fungi (P The findings of this research showed the high prevalence of fungal contamination as well as high frequency of toxin -forming fungi. Therefore, the feed raw materials are important vehicles for introduction of fungal organisms into poultry feed and fungal growth reduces the nutritional value of feeds. It should be considered to plan a program in order to control, limit and delete of the fungi from feeds.

Due to identification of antifungal drugs side effects and development of antifungal drugs-resistant fungi, there are growing interest to replace antifungal drugs with the herbal remedies that have antifungal properties. The present study was conducted to evaluate the antifungal effects of Althaea officinalis and Syzygium aromaticum aqueous extracts on the two species of saprophytic fungi including Penicillium spp and Aspergillus spp. Antifungal effects were assessed at four different concentrations including 6.25, 12.5, 25 and 50 mg/ml. The results of the present study revealed that Althaea officinalis and Syzygium aromaticum aqueous extracts have antifungal effects against Penicillium spp in all applied concentrations. Althaea officinalis aqueous extract had antifungal effects against Aspergillus spp at the concentration of 25 and 50 mg/ml, however, Syzygium aromaticum aqueous extract had an inhibitory effect on Aspergillus spp at all concentrations. The results demonstrate ameliorative effects of these herbal remedies on Penicillium spp and Aspergillus spp Furthermore, these results indicate that the antifungal effect of Syzygium aromaticum is greater than Althaea officinalis.

Fungi are present as normal flora in the surface of the eye of healthy animals but under certain conditions may cause disease. The purpose of this study was to identify the fungal isolates from the conjunctival sac of clinically normal goats and determine the effect of host age and sex on the isolates. A total of 140 swabs were taken from the inferior conjunctival sac of 70 healthy goats. The selected animals were of both male and female and divided into two age groups. The samples were inoculated in sabouraud dextrose agar with chloramphenicol and incubated at 25°C for 21 days. Data were analyzed by Fisher''s exact test. In total، 6 different fungal genera were identified in 26 (37. 14%) goats and 36 (25. 7%) eyes. The isolates included Penicillium spp. - 14 eyes (38. 88%)، Scopulariopsis spp. -11 eyes (30. 55)، Aspergillus fumigates - 4 eyes (11. 11%)، Fusarium spp. -3 eyes (8. 33%)، Mucor spp. -3 eyes (8. 33%) and Alternaria sp. -1 eye (2. 77%). The sex of goat had significant effect on frequency of fungal isolation (p<0. 01). The fungal species isolated in this report are comparable with studies on ruminants. The present study is the first report of fungal flora of normal caprine conjunctiva.