Knowledge of the genetic characteristics, origin, and local adaptation chickens is essential to identify traits required for chicken breeding programs. Chee Fah Luang are black-boned breeds reared in Chiang Rai, Thailand. Chickens an important part economy socio-culture; however, diversity, origins these two have been poorly studied. Here, we investigated gene pool, origin using mitochondrial D...

A total of 184 tracheas, 147 livers, 150 spleens and 148 hearts from apparently healthy and dead chickens were sampled and the bacterial flora was determined. The bacteria most commonly cultured from these four organs of healthy birds were Staphylococcus spp., Streptococcus spp., and Escherichia coli. Escherichia coli, Aeromonas spp., Staphylococcus spp., Proteus spp., and Citrobacter spp., wer...

This study reports the experimental transmission of Borrelia anserina to domestic chickens by infected Argas (Persicargas) miniatus. Clinical alterations as well as prepatent and patent periods were evaluated. Twenty-seven 67-day-old birds were divided into three groups in a randomized experimental design. The first group was exposed to ticks infected with B. anserina, the second group was expo...

A lower price on poultry meat, compared with other meats (beef, pork etc.), affects the increasing demand for poultry meat. The productivity and production cost of broiler chickens are directly related to the amount of feed fed, the proportion of crude protein in the feed, and the biological value and price of the feed. The EU produces only 30% of the protein crops used for feed; thus, the larg...

Ancient DNA provides an opportunity to infer the drivers of natural selection by linking allele frequency changes to temporal shifts in environment or cultural practices. However, analyses have often been hampered by uneven sampling and uncertainties in sample dating, as well as being confounded by demographic processes. Here, we present a Bayesian statistical framework for quantifying the timi...

In domestic chickens, the provision of maternal care strongly influences the behavioural development of chicks. Mother hens play an important role in directing their chicks' behaviour and are able to buffer their chicks' response to stressors. Chicks imprint upon their mother, who is key in directing the chicks' behaviour and in allowing them to develop food preferences. Chicks reared by a moth...

This paper briefly reviews the advantages and limitations of the different vaccines available for use against Newcastle disease in village chickens. Inactivated vaccines give very good immunity without vaccinal reactions and have been widely used, but are relatively expensive and require training to apply. Live vaccines are easy to apply and relatively inexpensive, and give moderately good immu...