from a total of 656 broiler farms with the permission of exploitation in guilan province, data was gathered from 20% of active farms including 85 units (capacity of over 1663000 portions of broiler chickens) to evaluate the management of nutrition and nourish using questionnaire. the questionnaires were completed by the interview method. the methods of making feed, feed formulation, the shape o...

A study was conducted to determine the effects of EM supplied in drinking water and feed on growth, egg production and waste characteristics of Japanese quail. The effect of EM on the growth of 1,000 day-old quail was assessed using a completely randomized design with four treatments: a control; EM added in drinking water at 1:5,000; EM (in the form of fermented compost or bokashi) added in fee...

Since the introduction of mechanical seals in nuclear boiling water reactor (BWR) feed pumps operating with high drive ratings, keeping mechanical seal reliability high became a challenge. A problem also encountered in fossil feed pump applications using similar electrically low conductive feed water, referred to as Combined Water Treated (CWT) feed water operation. After a short number of oper...

the effects of operating parameters such as feed temperature and permeate-side pressure on the performance of a commercial pva membrane in the dehydration of toluene by a pervaporation (pv) membrane system is studied in the present work. the results obtained indicate that increasing temperature in the range of 40 to 70 °c and reducing permeate pressure in the range of 1 to 10 mmhg increase memb...

this study was carried out to evaluate the effects of satureja khuzistanica essential oils (skeo) on performance, serum metabolites and differential counts of white blood cells in broiler chickens. a total of 280 one-day-old straight-run cobb 500 broiler chickens were allocated into seven treatment groups with four replicates of 10 birds each from day 1 to 42 of age. the birds were continuously...

Feed deprivation is used in the layer industry to induce molting and stimulate multiple egg-laying cycles in laying hens. Unfortunately, the stress involved increases susceptibility to Salmonella enteritidis (SE), the risk of SE-positive eggs, and incidence of SE in internal organs. Leghorn hens over 50 wk of age were divided into 4 treatment groups of 12 hens each in experiment 1 and 3 treatme...

Methionine is the first limiting amino acid in most commercial feeds for laying hens SCHUTTE et al. (1994), in addition to its main role as a component of proteins it also acts in various metabolic pathways. There are several factors (e.g. feed energy and protein content, age, genotype, sex and various environmental factors) to take into account when balancing the feed formulation EMMANS and FI...

Die Dissertation wurde mit dankeswerter finanzieller Unterstützung der Stiftung Schleswig-Holsteinische Landschaft angefertigt. Water is one of the most important foodstuffs of a dairy cow – the average amount of 87% water in 1 kg of milk may confirm this thesis (Winchester and Morris, 1956). To ensure good animal health, performance and welfare status, a sufficient supply of water is essential...

This study explores the effect of rearing environment on water bacterial communities (BC) and the association with those present in the gut of Nile tilapia larvae (Oreochromis niloticus, Linnaeus) grown in either recirculating or active suspension systems. 454 pyrosequencing of PCR-amplified 16S rRNA gene fragments was applied to characterize the composition of water, feed and gut bacteria comm...