Normal, chick embryonic tissues were mixed with Rous sarcoma virus and inocu lated into 1-day-old ducklings and conditioned hamsters. In the hamsters tumors, although small, grew, and a high titer virus was demonstrated. In ducklings there were temporary growths followed by rapid regression. When the ducklings were treated with large doses of cortisone and infected with the high titer virus, a ...

Phytogenic feed additives are used as antibacterial, anti-inflammatory and performance enhancer in the nutrition of broiler chicks. In present study, it was aimed to investigate effects usage phytogenic which an alternative antibiotics broilers at different levels rations, on morphology duodenum ileum. For this purpose, 48 male ROSS-308 one-day-old chicks were study. Chicks with a body weight 4...

When chick erythrocytes were fused with adenine-requiring mutants of Chinese hamster cells of two different complementation classes and grown in adenine-free medium for 1 week or longer, mitotic cells were observed containing both chick and Chinese hamster metaphase chromosomes within a single cell. Stable hybrid clones were subsequently isolated that possessed, in addition to a complete Chines...

This experiment investigated the effects of brooding system (BS) and stocking density (SD) on immune response 1-14-day-old broiler chicks. A 3672 one-day-old Cobb 500 chicks were raised in two BSs (conventional floor (CFBS) newly developed multi-tier closed (NDBS)) at four different SDs (30, 60, 90, 120 chicks/m2), resulting a 2 × 4 factorial arrangement. Immunity data lymphoid organ weights, m...

Introduction: There is considerable evidence that glutamate-mediated excitatory neurotransmission plays an important role in mediating the behavioral actions of acutely administered ethanol. The aim of the present study was to investigate the effect of acute ethanol exposure on NR1 subunit of NMDA (n-methyl-d-aspartate) receptor distribution in the cerebral cortex of chick embryo on the 10th...

The presence of essential amino acids and low anti-nutritional factors (ANFs) in Moringa oleifera leaf meal (MOLM) designates it as a good source nutrients for poultry. This study investigated the effect dietary MOLM on growth performance, semen, hatchability traits day-old chick weight Potchefstroom Koekoek (PK) chickens. Two isonitrogenous isoenergetic diets were formulated by diluting basal ...

Glutathione-S-transferases (GSTs) constitute a multifunctional family of dimeric and cytosolic enzymes which play an important role in biotransformation of tissues from oxidative stress. They catalyze the conjugation of intracellular glutathione with chemicals, that possess an electrophilic centre to facilitate their metabolism and elimination through mercapturic acid pathway. Acrylamide, a kno...

Chick embryos have been used as alternative experimental animals in various research fields, including virology, immunology, toxicology, oncology, and embryology. Until now, there have been no in vivo models using chick embryo to evaluate radiosensitizing activity. Here, the in vivo radiosensitizing activity of etanidazole, a well-known hypoxic cell radiosensitizer, was evaluated using tumor-be...

 Background & Objective:  Toxico-pathological effects of herbal plants have always been a major concern, but little information is provided on the toxico-pathological effects of origanum on the fetus. Due to ethical rules and regulations, no drug experiment on the human fetus is permitted; hence, the chick embryo model is used as an ideal opportunity to study the adverse effects of drugs. This ...