نتایج جستجو برای: broiler breeder males
تعداد نتایج: 140993 فیلتر نتایج به سال:
Objectives of this study were to explore the untoward effects of cottonseed meal (CSM) on male reproductive performance of broiler breeders and ameliorating effects of lysine addition in rations. A total of 80 broiler breeder males of 40 weeks of age were divided in to 8 groups. The four groups were fed diets containing CSM @ of 0, 10, 20 and 30%, respectively. The remaining four groups were gi...
A 28-week experiment was conducted to study the effects of dietary energy and digestible methionine level on performance and reproductive traits of broiler breeder hens, using 280 Arian broiler breeder hens and 20 males at 26 weeks of age. The experiment was done as 2×2 factorial arrangement in a completely randomized design with 4 treatments and 5 replicates. Dietary treatments were formu...
Contaminated poultry and poultry products are a major source of motile Salmonellae for human salmonellosis worldwide. Local circulation of any motile Salmonella serovar in poultry has a wider public health impact beyond its source of origin for being dispersed elsewhere through poultry trades or human travels. To investigate the status of motile Salmonella serovars in breeder farms in Banglades...
Controlling Salmonella in integrated broiler operation is complicated because there are numerous potential sources of Salmonella contamination, including chicks, feed, rodents, wild poultry operations, and the processing plant. The objective of this study was to investigate the distribution of Salmonella through all phases of two integrated broiler operations and to determine the key areas rela...
Background and Objectives: Salmonella contamination of broiler breeder farms is of great importance regarding transmission of the bacteria through the production chain of poultry meat. The aim of this study was to determine the prevalence and management related factors of Salmonella contamination in broiler breeder flocks in Iran. Methods: This cross sectional study was carried out between 2...
Recent research to define a measure of chick quality has evaluated the effects of incubation conditions, breeder age and genotype on progeny growth and survival. Nutritional research has focused on defining the optimum concentration of maternal dietary nutrients for progeny growth, mortality and immune status. There is a research requirement to bring these two areas together to better understan...
The modern broiler and breeder are performing at levels never seen before. In order to multiply by 15x (or more) their bodyweight in just four weeks, they do not have the time to correct the effects of nutritional deficiencies. In a recently published paper coming from the University of Alberta, the effect of genetic selection was studied using unselected strains from 1957, 1978 and a 2005 comm...
Ornithobacteriosis is an infectious disease of avian species that has been reported in almost all countries around the world, except Thailand. The objectives of this study were to determine the seroprevalence of Ornithobacterium rhinotracheale (ORT) and to isolate and identify ORT in broilers and broiler breeders in Thailand. Chicken antibodies had been randomly checked from 17 farms (19 flocks...
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