Evaluation of genetic resistance to Salmonella Pullorum in three chicken lines

Serotype Distribution and Antimicrobial Resistance of Salmonella Isolates in Human, Chicken, and Cattle in Iran

Salmonellais a foodborne zoonotic enteric bacterium able to infect both humans and animals. This study aimed to identify the antimicrobial resistance of Salmonella serovars isolated from human, cattle, and poultry. Moreover, we investigated the probable transmission trends of antibiotic-resistant Salmonella isolates from food animals to human. A total of 242 Salmonella isolates collected from v...

Prevalence and Antibiotic Resistance of Salmonella Serotypes in Chicken Meat of Ardabil, Northwestern Iran

Background and Objective: Salmonellosis is one of the most important zoonotic diseases; most of the infections caused by the consumption of contaminated food is caused by this bacterium. During the last decades, the resistance of Salmonella isolates to conventional antibiotics has increased, which is a global health problem. The objective of this study was to investigate Salmonella serotypes in...

Frequency, antibiotic resistance, and serogroups of Salmonella among chicken meat specimens in Tehran, Iran

Genetic resistance to natural helminth infections in two chicken layer lines.

Groups of Lohmann Brown (LB) and Lohmann Selected Leghorn (LSL) hens were reared under helminth-free conditions and kept afterwards together in a free range system. Mortality rate, body weight development, laying performance and faecal egg counts (FEC) were recorded during a 12 month laying period. At the end of the laying period, 246 LSL and 197 LB hens were necropsied and worms counted follow...

Evaluation of Rice Promising Lines for Resistance to Striped Stem Borer in Field Conditions

   In this study, the mechanism of resistance to striped stem borer was investigated in 10 rice genotypes and at different levels of nitrogen fertilizer. In addition, the relationship between some quantitative and qualitative traits of rice genotypes was evaluated with the resistance to striped stem borer.This experiment was conducted as split plot based on randomized complete block design with...