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2 produkter
2 produkter
Häftad, Engelska, 1997
719 kr
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This report is a comprehensive review of published information on the body composition and digestive physiology of temperate zone goats, the composition of their products, meat, milk and fibre, their voluntary feed intake, and their associated energy, protein, mineral and vitamin requirements. The systematic approach is similar to that of earlier reviews of ruminant nutrient requirements published by the Agricultural Research Council in 1980 and 1984, which are factorial in nature. In particular the energy and protein requirements are expressed in terms of Metabolisable Energy (ARC 1980, AFRC 1990) and Metabolisable Protein (AFRC1992), using the models for cattle and sheep as appropriate. The requirements for calcium and phosphorus have been calculated utilising the factors specified in a separate AFRC report published in 1991. The report also identifies areas where there is a lack of research data specific to goats, recourse having to be made to published data for sheep (particularly for voluntary feed intake and the nutrient requirements of pregnancy) or cattle, as most appropriate. The review has 49 tables covering all aspects of the subject, and is fully referenced. It represents an authoritative review for advanced students, research workers and advisors in animal nutrition.
Inbunden, Engelska, 2000
2 176 kr
Skickas inom 5-8 vardagar
This volume provides background theory and practical protocols for bioassays of bacteria, viruses, fungi, microsporidia and nematodes that can be used as biological control agents against insect pests of agricultural and medical importance. In addition, experimental design and statistics, computational modelling for bioassay analysis, and relevant legislation are described. With contributions from internationally recognised scientists from their respective fields, this book will be of particular value to researchers both experienced and inexperienced in this area.