Influence of the Type of Energy Supplementation (date stones <em>vs</em> Barley) on Fattening Performances and Carcass Characteristics of Fattening Berber Lambs

When local resources are available, their promotion in the feed of growing animals may reduce production costs and secure the fattening system. However, maintaining zootechnical performances remains a precondition. An experiment was carried out on four groups of ten lambs. Each animal received isoproteinic rations containing date stones as substitutes for barley grains in variable proportions at the rate of 0, 15, 30 and 45% of the dry matter. The rations were distributed ad libitum by adjusting the quantities offered. The diet had a significant effect on weight performances (P 0.05). Date stones can entirely substitute barley grains in rations of fattening sheep without affecting its performances

Prevalence of major bacteria causing subclinical mastitis in dairy cows in Northeastern Algeria

Bacterial analyses of 235 milk samples of dairy cattle distributed over 10 farms in Northeastern Algeria, affected by subclinical mastitis diagnosed by the California mastitis test, were carried out over a two-year period (2008-10). Bacterial isolation concerned 80% of the samples. Among the pathogenic agents detected, Gram-positive cocci were the most frequently found, particularly coagulase-negative staphylococci (43%) and Staphylococcus aureus (30%). Escherichia coli was isolated in 14% of the samples. The other bacteria isolated were Streptococcus uberis (4%), Streptococcus agalactiae (3%), Streptococcus dysgalactiae (3%), and more rarely Klebsiella sp. (2%)

Genotyping of Staphylococcus aureus Isolated from Bovine Clinical Mastitis by Pulsed-Field Gel Electrophoresis (PFGE)

International audienc

MKMSIS: A Multi-agent Knowledge Management System for Industrial Sustainability

International audienceIndustrial Sustainability in most companies face several problems when a firm tries to promote a greener image while focusing on maintaining profitability in a long-term approach. This is a necessary strategic approach, as customers are becoming more committed to buying products that consider environmental concerns and additional regulations need to be followed. However, traditional marketing and distribution methods, management tools and the homogenization of requirements fail to fully integrate the implication of environmental regulations into their processes. In this scenario, a system for supporting the integration of environmental concerns, endogenous and exogenous regulations, and market trends would be very well received. This is a complex task to be realized by just one system, even when a firm's various departments have an efficient networked communication system. A Distributed Decision Making System (DDMS) could be a useful approach. This paper introduces a multi agent network for collaborative knowledge management. Since regulations and environmental issues are at the core of those processes and influence the final products, several sustainability phases can be addressed within this network, from the design to the marketing and distribution stages. The aim of our system is to deal with the management of these different phases in a collaborative platform by considering the sustainability knowledge related to several regulations

Energy-efficiency Comparison between Data Rate Control and Transmission Power Control Algorithms for Wireless Body Sensor Networks

This article presents comparison between data rate or rate control, that is, video transmission rate control algorithmand transmission power control algorithms for two different cases. First, energy consumption due to high peak variabledata rates in video transmission. Second, energy depletion due to high transmission power consumption and dynamicnature of wireless on-body channel. The former one focuses on constant (fixed) transmission power level and variabledata rate (‘‘severe’’ conditions), for example, medical monitoring of the emergency patients. The latter considers variabletransmission power level and constant (fixed) data rate (‘‘less severe’’ conditions), for example, electrocardiography measurement for patients in wireless body sensor networks. Besides, energy efficiency comparison analysis of battery-drivenor video transmission rate control algorithm and transmission power control–driven or power control algorithm is presented. Finally, proposed algorithms are analyzed and categorized as energy-efficient and battery-friendly for medicalapplications in wireless body sensor networks

Prevalência de criptosporidiose em bezerros na região de Araçatuba, Estado de São Paulo, Brasil Prevalence of cryptosporidiosis in calves from Araçatuba region, São Paulo State, Brazil

Avaliou-se a prevalência de oocistos de Cryptosporidium parvum em amostras de fezes de 459 bezerros com até 30 dias de idade e em amostras de água e piso dos bezerreiros de 33 propriedades leiteiras na região de Araçatuba-Estado de São Paulo. A maior porcentagem de excreção de oocistos foi verificada em bezerros com faixa etária variando entre oito e 14 dias de idade (14,5%) sendo, a menor taxa (6,4%), detectada no grupo de animais mais velhos (22 a 30 dias de vida). Observaram-se, na amostragem total, valores positivos aproximados de 10,26% pelo ensaio de imunoadsorção enzimática e de 12,4% pelo teste de Sheather. As amostras de água foram negativas e duas de solo positivas.<br>The purpose of this study was to evaluete the prevalence of Criptosporidium parvum oocists in faeces samples from 459 calves up to 30 days old and from water and floor samples from 33 farmers from Araçatuba region - Sâo Paulo. The higher percentage of oocists excreted was observed in calves with 8 to 14 days old, and the lower was noted in the oldest animals group (22 to 30 days old). In total amostrage 10.26% were positive using enzyme-linked immunosorbent assay and 12.4% by the Sheather test. The water samples were negative and two of soil positive