Background and aim: Newcastle disease (ND) is one of the most serious diseases among many species of birds and causes devastating effects on the poultry industry. This disease is endemic in Iran and ND outbreaks occur unexpectedly and with high mortality and severe clinical signs. The sequence of the F protein cleavage site is that the major virulence determinant of Newcastle disease virus (NDV...

In this study, Lactobacillus plantarum (ATCC 8014), Lactobacillus casei (ATCC 393), Lactobacillus lactis (ATCC 7830) and Lactobacillus fermentum (ATCC 9338) and L. reuteri strains were isolated from goat, sheep, cattle and camel rumen. The bacterial strains were cultured anaerobically in MRS broth and MRS agar at 37±1°C and administered (10 CFU/mL) separately to 1 day-old Lohman, Hubbard and Ro...

a study was conducted to compare the growth performance as well as blood and carcass variables of two broiler strains reared in a conventional broiler house and a modified greenhouse equipped with cooling pads and tunnel ventilation system. eight hundred day-old chickens of two commercial strains (ross  308 and lohmann) were selected and placed in  8 floor pens (4 pens of  50 broilers for each ...

3.1 ABSTRACT A randomized complete block design with four treatments (100% pale, soft, and exudative (PSE), 100% PSE + 1.5% chicken collagen, 100% normal, and 100% normal + 1.5% chicken collagen) and six replications was utilized to test the effects of raw material and chicken collagen on protein functionality in the formulation of chunked and formed broiler breast. Addition of 1.5 % chicken co...

With the complexity and amount of information in a wide variety of comparative performance reports in poultry production, making a decision is difficult. This problem is overcomed only when all data can be put into a common unit. For this purpose, five different decision making analysis approaches including  Maximin, Equally likely, Weighted average, Ordered weighted averages and Technique for ...

antifungal and antibacterial activity of some heterocystous cyanobacteria from paddy-fields in the north of iran was studied. soil samples were collected from paddy-fields of gillan, mazandaran and golestan provinces and cyanobacteria were isolated. supernatants, methanolic and hexane extracts from biomass of 150 strains of cyanobacteria were isolated and screened against six strains of bacteri...

BACKGROUND Multidrug-resistant Salmonella strains are frequently encountered problems worldwide with considerable increased occurrences in recent years. The aim of this study was to investigate the occurrence and frequency of antimicrobial resistance and associated resistance genes in Salmonella isolates from broiler farms in different regions of Iran covering a time period of four years. RES...

in this study, urease production was investigated among thirteen strains of aspergillus niger seven strains isolated from soils of semnan province in iran and six strains obtained from persian type culture collection (ptcc). the enzyme production was screened in two submerged media quantitatively. the registered ptcc 5011 and the native s31 strains showed more urease production than the other e...

There were no considerable up to date on the trace element requirements of commercial poultry in recent years in despite of the progress in their performance traits. One of the more prevalent problems in modern broiler production system which could be attributed to the trace mineral inadequacy is skeletal disorders. Zinc, is an essential trace element which acts as a co-factor in several metalo...