Gizzard Lesions in Day-Old Chickens

Association between gizzard lesions and increased caecal Clostridium perfringens counts in broiler chickens.

The aim of this study was to investigate the relationship between mucosal gizzard lesions and caecal Clostridium perfringens counts. Gross pathological changes in the gizzard and small intestine, and caecal C. perfringens counts from 1217 meat-type chickens were recorded during the course of six experiments and were statistically analysed. C. perfringens counts increased significantly (P < 0.00...

Effects of Anatoxin B1 on Liver Nuclear DNA Biosynthesis in Growing and Day-old Chickens

Broiler surface temperature distribution of 42 day old chickens

Broiler chickens in Brazil are generally reared from 1 to 42 days when they are exposed to procedures such as fasting, harvesting, crating and transport to slaughter. Maintaining homeostasis is of great importance for broiler survival under harsh environment especially prior to slaughter. Heat loss varies in the distinct parts of the body during the growth period, and it is related to the air t...

Caprylic acid supplemented in feed reduces enteric Campylobacter jejuni colonization in ten-day-old broiler chickens.

Campylobacter is one of the leading causes of human foodborne illness in the United States, and epidemiological evidence indicates that poultry and poultry products are a significant source of human Campylobacter infections. Reducing Campylobacter in the intestinal tract would reduce contamination of poultry products and eggs. Caprylic acid, an 8-carbon medium-chain fatty acid has been shown to...

Recombinant chicken IL-6 does not activate heterophils isolated from day-old chickens in vitro.

Pro-inflammatory cytokines are produced as part of innate immunity. Increased resistance to extraintestinal Salmonella enteritidis (SE) has been associated with an increase in heterophil pro-inflammatory cytokine gene expression. Invasion of chicken epithelial cells by SE induces an 8- to 10-fold increase in interleukin (IL) -6 production. Infection with SE induces an influx of heterophils to t...