Zobrazeno 1 - 10
of 42
pro vyhledávání: '"David Cottle"'
Autor:
Lewis Kahn, David Cottle
Beef Cattle Production and Trade covers all aspects of the beef industry from paddock to plate. It is an international text with an emphasis on Australian beef production, written by experts in the field. The book begins with an overview of the histo
Publikováno v:
Journal of Dairy Science. 101:4498-4512
A bioeconomic, stochastic spreadsheet model, that included calculation of the net present value of the additional value of all future descendants resulting from increased selection intensity, was developed to study the profitability of using sexed se
Autor:
David Cottle
Publikováno v:
Livestock Science. 197:53-60
The sensitivity of pasture intake estimates obtained from using 13C as a marker to differences in assumed diet composition and 13C diet-faecal discrimination was studied. Angus stud heifers grazed a silver grass, perennial ryegrass, bent grass and yo
Autor:
Annette Cowie, David Cottle
Publikováno v:
The International Journal of Life Cycle Assessment. 21:820-830
Australia is the largest supplier of high-quality wool in the world. The environmental burden of sheep production must be shared between wool and meat. We examine different methods to handle these co-products and focus on proportional protein content
Autor:
David Cottle
Publikováno v:
Livestock Science. 184:13-20
This study compared measuring the stable isotope, 13C, in the faeces with measuring alkanes and alcohols, using a system for automatically dispensing supplement, to determine the proportions of C3 (temperate legumes and grasses) and C4 (maize grain s
Publikováno v:
ANZ Journal of Surgery. 89
Autor:
BP Baxter, David Cottle
Publikováno v:
Textile Progress. 47:163-315
This review explores research and development in wool metrology to date. In doing so, it highlights the research work undertaken by three organisations, in particular, to the development of wool and textile metrology research covering all of the impo
Autor:
C. Romero, David Cottle
Publikováno v:
Animal Feed Science and Technology. 187:30-43
It is difficult to measure pasture feed intake. A common method is based on naturally occurring, indigestible plant markers, such as long chain alkanes. Least-squares procedures are used to estimate diet composition and intake. If actual intake of a
Autor:
David Cottle, Mike Coffey
Publikováno v:
Journal of Animal Breeding and Genetics. 130:41-54
The objective of this study was to assess the impact of using different relative economic values (REVs) in selection indices on predicted financial and trait gains from selection of sires of cows and on the choice of leading Holstein bulls available