Domestic chickens (Gallus gallus) can be trained to search for a social stimulus in a specific magnetic direction, and cryptochrome 1a, found in the retina, has been proposed as a receptor molecule mediating magnetic directions. The present study combines immuno-histochemical and behavioural data to analyse the ontogenetic development of this ability. Newly hatched chicks already have a small a...

The effects of processed castor oil bean (Ricinus communis L) meal (CBM) and supplementary DLmethionine on nutrient retention, carcass and organ weights of broiler chicks were investigated for five weeks. Two hundred and sixteen 7-day old broiler chicks (Anak strain) were randomly divided into 12 treatment groups of 18 birds each in a 4 x 3 factorial arrangement involving four processed CBM lev...

Maternally derived androgens have been shown to influence offspring phenotype in various ways. In birds, the benefits of prenatal androgen exposure, such as increased competitiveness and accelerated growth in nestlings, have been suggested to be balanced by costs, such as reduced immune function. In this study, we used an integrative approach to examine the influence of yolk androgens on the de...

The urease activity index (UI) is a laboratory test to identify underprocessed soybeans. An experiment was conducted to compare the cor­ relation coefficient of laboratory test with some biological experiment to evaluation of extruded full fat soybean (EFFSB). One hundred fortyfour day-old male broiler chicks were divided into 12 groups including 3 treatments with 4 replicates and fed 3 diets c...

The reason of this study was to evaluate the action of oxidative stress (OS) induced with hydrogen peroxide (H2O2) on the analgesic, antipyretic and anti-inflammatory effects of aspirin in 7-14 day old chicks. H2O2 at 0.5 % v/v in drinking water induced OS in age 7-14 of the chicks when given freshly. The analgesic Median Effective Dose (ED50) and acute Median Lethal Dose (LD50) values of aspir...

Turkey arthritis reoviruses (TARVs) were isolated recently from gastrocnemius and digital flexor tendons of lame turkeys with swollen joints and tenosynovitis. These TARVs were genetically different from chicken arthritis reoviruses (CARVs) and produced gastrocnemius tenosynovitis when inoculated into turkey poults. The purpose of this study was to determine the pathogenicity of TARVs in chicke...

Pre-verbal infants and non-human animals associate small numbers with the left space and large numbers with the right space. Birds and primates, trained to identify a given position in a sagittal series of identical positions, whenever required to respond on a left/right oriented series, referred the given position starting from the left end. Here, we extended this evidence by selectively inves...

The objectives of this experiment was to evaluate the subsequent growth and organ weights, blood profiles and cecal microbiota of broiler chicks fed pre-starter diets containing fermented soybean meal products during early phase. A total of nine hundred 1-d-old chicks were randomly assigned into six groups with six replicates of 25 chicks each. The chicks were fed control pre-starter diet with ...

BACKGROUND Metoclopramide is a dopamine D2-receptor antagonist used as an antiemetic and gastroprokinetic agent in man and animals. The drug causes sedation as a side effect in man. Such a sedative action of metoclopramide has not been documented in the chicken as the drug is not used clinically in this species. The present study examines the central nervous system depressant effects of metoclo...

AIM The aim was to assess the efficacy of pine leaves as an alternative bedding material on the performance of broiler chicks. MATERIALS AND METHODS The present study was conducted in summer. Total 120, day old Vencobb straight run chicks were procured, and after 5 days of brooding, chicks were randomly distributed into four treatment groups viz. paddy husk (Group I), paddy straw (Group II), ...