Download or read book Some Effects of Experimental Feeding of DDT to Coturnix Coturnix Japonica Tem and Schl written by David Lee Cross and published by . This book was released on 1960 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long term Feeding of Dieldrin with a Calcium Stress to Japanese Quail Coturnix Coturnix Japonica written by Craig M. Reading and published by . This book was released on 1974 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments were conducted using coturnix quail to determine the effects of dieldrin and calcium on the reproductive performance of this species. In both experiments quail were raised on a soybean-meal glucose-monohydrate ration. At 25% egg production the quail received diets containing 0, 10 or 25 ppm of dieldrin in experiment I and 0, 5, 10 or 25 ppm of dieldrin in experiment II. Quail receiving each of these pesticide levels were further subdivided and fed diets containing 0. 5% and 3. 0% calcium. In experiment I data were collected and analyzed over six, 28- day production periods. The results show that specific gravity, egg production, fertility, hatchability, egg weight, body weight, incidence of cracked eggs and feed consumption were not affected by dieldrin treatment. However, specific gravity, incidence of cracked eggs, egg production, hatchability and female body weight were adversely affected by the lower calcium level. Male and female mortality was significantly higher with 25 ppm of dieldrin than controls. Livability of chicks fed 25 ppm dieldrin at both calcium levels and 10 ppm with 3. 0% calcium was lowered when compared to controls. In experiment II data was collected and analyzed over four, 28- day, production periods. Dieldrin was found not to decrease eggshell thickness when levels of 5, 10, or 25 ppm were present in the ration. Calcium at a level of 0.5% significantly reduced eggshell thickness. Egg production was not significantly reduced by dieldrin supplementation except during the first production period. Fertility, hatchability, egg weight, male and female body weight and feed consumption were also unaffected by dieldrin supplementation. The low calcium level (0.5%) was observed to significantly depress egg production and hatchability, but it did increase female body weight. Mortality of adult quail was greatly affected when levels of 10 and 25 ppm of dieldrin were present in the ration. Five ppm of dieldrin did not affect the mortality. Livability of chicks from hens receiving dieldrin rations of 10 and 25 ppm were significantly lower than chicks from hens receiving uncontaminated rations. Five ppm dieldrin did not affect the survival rate of chicks.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1975 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected References on Environmental Quality as it Relates to Health written by and published by . This book was released on 1973 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1994 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991 with total page 1810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Public Health Significance of Urban Pests written by Xavier Bonnefoy and published by World Health Organization. This book was released on 2008 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second half of the 20th century and the beginning of the 21st century witnessed important changes in ecology, climate and human behaviour that favoured the development of urban pests. Most alarmingly, urban planners now face the dramatic expansion of urban sprawl, in which city suburbs are growing into the natural habitats of ticks, rodents and other pests. Also, many city managers now erroneously assume that pest-borne diseases are relics of the past. All these changes make timely a new analysis of the direct and indirect effects of present-day urban pests on health. Such an analysis should lead to the development of strategies to manage them and reduce the risk of exposure. To this end, WHO invited international experts in various fields - pests, pest-related diseases and pest management - to provide evidence on which to base policies. These experts identified the public health risk posed by various pests and appropriate measures to prevent and control them. This book presents their conclusions and formulates policy options for all levels of decision-making to manage pests and pest-related diseases in the future. [Ed.]
Download or read book Selected References on Environmental Quality as it Relates to Health written by and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Monthly. Bibliography of MEDLARS-based journal articles that describe perturbations in the ecosystems important to health. For the most part, genetic and clinical literature not included. Index medicus format; author, subject sections.
Download or read book Taking an Exposure History written by Arthur L. Frank and published by . This book was released on 2001 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1991 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Handbook of Global Freshwater Invasive Species written by Robert A. Francis and published by Routledge. This book was released on 2017-08-11 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive non-native species are a major threat to global biodiversity. Often introduced accidentally through international travel or trade, they invade and colonize new habitats, often with devastating consequences for the local flora and fauna. Their environmental impacts can range from damage to resource production (e.g. agriculture and forestry) and infrastructure (e.g. buildings, road and water supply), to human health. They consequently can have major economic impacts. It is a priority to prevent their introduction and spread, as well as to control them. Freshwater ecosystems are particularly at risk from invasions and are landscape corridors that facilitate the spread of invasives. This book reviews the current state of knowledge of the most notable global invasive freshwater species or groups, based on their severity of economic impact, geographic distribution outside of their native range, extent of research, and recognition of the ecological severity of the impact of the species by the IUCN. As well as some of the very well-known species, the book also covers some invasives that are emerging as serious threats. Examples covered include a range of aquatic and riparian plants, insects, molluscs, crustacea, fish, amphibians, reptiles and mammals, as well as some major pathogens of aquatic organisms. The book also includes overview chapters synthesizing the ecological impact of invasive species in fresh water and summarizing practical implications for the management of rivers and other freshwater habitats.
Download or read book Organic Matter and Rice written by and published by Int. Rice Res. Inst.. This book was released on 1984 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1998 with total page 1872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Harmful Algal Blooms written by Sandra E. Shumway and published by John Wiley & Sons. This book was released on 2018-08-06 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harmful Algal Blooms: A Compendium Desk Reference erläutert die Grundlagen der schädlichen Algenblüte (HAB) und bietet die notwendigen technischen Informationen, wenn es um unerwartete oder unbekannte schädliche Ereignisse in Zusammenhang mit Algen geht. Dieses Fachbuch behandelt die Gründe für die schädliche Algenblüte, erfolgreiche Management- und Monitoring-Programme, Kontroll-, Präventions- und Minderungsstrategien, die wirtschaftlichen Folgen, Gesundheitsrisiken sowie die Folgen für die Nahrungskette und Ökosysteme. Darüber hinaus bietet es ausführliche Informationen zu den häufigsten HAB-Arten. Harmful Algal Blooms: A Compendium Desk Reference ist ein unschätzbares Referenzwerk für Manager, Einsteiger in das Fachgebiet, Praktiker mit eingeschränkten Zugang zu wissenschaftlicher Literatur und alle, die schnell Zugriff auf Informationen benötigen, insbesondere vor dem Hintergrund neuartiger oder unerwarteter HAB-Ereignisse. Die drei Herausgeber gehören zu den weltweit führenden Forschern auf dem Fachgebiet. Führende Experten haben ebenfalls zu diesem Fachbuch beigetragen, das sich zu einem wichtigen Referenzwerk des Fachgebiets entwickeln wird, zumal das Thema immer mehr an Bedeutung gewinnt.
Download or read book Poultry Meat Processing and Quality written by G Mead and published by Elsevier. This book was released on 2004-06-01 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poultry products are universally popular and in recent years the consumption of poultry meat has risen dramatically. To ensure the continued growth and competitiveness of this industry, it is essential that poultry meat quality and safety are maintained during production and processing. This important collection provides an authoritative review of the key issues affecting poultry meat quality in production and processing.The book begins by establishing consumer requirements for meat quality, before examining the influence of breeding and husbandry, and techniques for stunning and slaughter of poultry. Chapters 5 and 6 look at primary and secondary processing and Chapters 7, 8 and 9 discuss packaging, refrigeration and other preservation techniques. There are also chapters on microbial hazards and chemical residues in poultry. Quality management issues are reviewed in the final group of chapters, including shelf-life and spoilage, measuring quality parameters and ways of maintaining safety and maximising quality.Poultry meat processing and quality is an essential reference book for technical managers in the Poultry Industry and anyone engaged in teaching or research on poultry meat production. - An essential reference for the entire poultry meat industry - Reviews the key issues affecting poultry meat quality in production and processing - Extensive analysis of poultry meat safety issues
Download or read book Drinking Water and Health written by National Research Council and published by National Academies Press. This book was released on 1977-01-01 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most recent volume in the Drinking Water and Health series contains the results of a two-part study on the toxicity of drinking water contaminants. The first part examines current practices in risk assessment, identifies new noncancerous toxic responses to chemicals found in drinking water, and discusses the use of pharmacokinetic data to estimate the delivered dose and response. The second part of the book provides risk assessments for 14 specific compounds, 9 presented here for the first time.
Download or read book The Pesticide Review written by United States. Agricultural Stabilization and Conservation Service and published by . This book was released on 1967 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
