منابع مشابه
Managing Ammonia in Poultry Farms
Technical Bulletin 1 ı As the poultry industry has grown, so have concerns about environmental management aspects, including air and water quality. There is a growing concern related to ammonia emission from poultry operations. Ammonia is a colorless, lighter than air, highly water-soluble gas present in the atmosphere of every poultry house. Ammonia volatilization from poultry litter commonly ...
متن کاملEconomic epidemiology of avian influenza on smallholder poultry farms☆
Highly pathogenic avian influenza (HPAI) is often controlled through culling of poultry. Compensating farmers for culled chickens or ducks facilitates effective culling and control of HPAI. However, ensuing price shifts can create incentives that alter the disease dynamics of HPAI. Farmers control certain aspects of the dynamics by setting a farm size, implementing infection control measures, a...
متن کاملBiosecurity Practices in Algerian Poultry Farms
The objective of this study was to determine the level of adoption within the Algerian poultry farms (broiler chickens, laying hens) of a range of standard biosecurity practices (isolation, traffic control, decontamination, vaccination...). Quantitative and qualitative evaluation of the biosecurity in the poultry houses has been analyzed thanks using method developed by the French Food Safety A...
متن کاملHaematophagus Mites in Poultry Farms of Iran
BACKGROUND Blood sucking mites are important avian ectoparasites which being found on bird species worldwide. Their presence are problematic for the producers either through potential direct effects on weight gain, egg production, sperm production in roosters or as nuisance pests on worker handle hens and eggs. The aim of this study was pointing out of the status of haematophagus mites. METHO...
متن کاملOptimal Labor Income Taxation∗
This handbook chapter reviews recent developments in the theory of optimal labor income taxation. We emphasize connections between theory and empirical work that were initially lacking from optimal income tax theory. First, we provide historical and international background on labor income taxation and means-tested transfers. Second, we present the simple model of optimal linear taxation. Third...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1926
ISSN: 0032-5791
DOI: 10.3382/ps.0060071