BACKGROUND: In ovo injection of nutrients as an early feeding method in birds directly supplies the nu- trients to the developing embryo. OBJECTIVES: This study was designed to evaluate the effects of in ovo injection of nicotonic acid, panto- thenic acid and folic acid on the performance and immune system of broilers. METHODS: </st...

introduction glutamine (gln), a semi-essential or conditionally essential amino acid, is an abundant amino acid in plasma and skeletal muscle. it is the main energy substrate for cells that undergo intense replication, such as enterocytes, lymphocytes, macrophages, neutrophils and kidney cells and plays an important role in their function and homeostasis. apart from providing nitrogen for prote...

one hundred and sixty one-day-old male broilers (ross 308) in a 6-wk period were conducted to 2 groups (with 4 replicates for each group), 20 chicks for a replicate. one group of these chickens was raised in normal temperature (nt) treatment and the other in cold temperature (ct) treatment to induce ascites. at the end of the experiment (wk 6), 2 chickens from each replicate were randomly selec...

the effects of various methods of probiotic administration in hatchery and on prevention of salmonella enteritidis (se) in broiler chicks was investigated. a total of 150 salmonella free day old chicks (ross 308) were assigned to five experimental groups including control and four in-hatchery probiotic administration method groups comprised of: in ovo injection, oral gavage, spray and vent lip ...

A factorial experiment was conducted to investigate the effects of L-Carnitine and fenofibrate on broilers. There were four replicates treatments, with each replicate including ten male Ross 308 broiler chickens. The over a 42-day period. treatments consisted two levels (200 400 mg/kg) (50 100 as supplements basal diet. Growth, carcass characteristics, serum constituents, immune system responsi...

Background: Some medicinal plants can stimulate growth in poultry. Objective: To compare the effects of dietary addition virginiamycin antibiotic and galbanum plant (Ferula gummosa) on performance, carcass characteristics, immune system, blood factors broiler chickens. Methods: A total 250 one-day-old male Ross 308 chickens were randomly assigned to five treatments with replicates (10 birds per...

The aim of this study was to evaluate the effect Tenebrio molitor larvae meal supplementation in chicken diets on chemical composition and sensory quality meat. experiment conducted 120 Ross 308 male broilers from day 12 38 their age. Broilers were divided into three equal groups with 5 replicates per treatment. two experimental received feed mixtures containing 2% (TM2; n = 40) 5% (TM5; 40), r...

Probiotics which do not result in the development and spread of microbial resistance are among the candidate replacements for antibiotics previously used as growth promotors. In this study the effect of in-feed supplementation of the butyrate producing Butyricicoccus pullicaecorum strain 25-3T on performance, intestinal microbiota and prevention of necrotic enteritis (NE), a disease caused by C...

The aim of this study was to evaluate the effects of increasing doses of ascorbic acid (AA) and citric flavonoids (quercetin and rutin) on the performance and meat quality characteristics of broilers submitted to cyclic heat stress. Four-hundred one-day-old female Ross 308 were housed in 40 battery cages a in temperature controlled room. Treatments consisted of 0, 250, 500, and 1000 g/ton on of...

The search and development of natural biological additives that have a comprehensive effect as immunostimulants improve digestion in poultry is relevant. This study was carried out at the Selection Genetics Center “Zagorskoe EPH”. control experimental groups were formed 1-day-old Ross-308 cross broilers (35 heads each). Six formed. group No.1 (control) received basic feed (BF) with addition ant...