منابع مشابه
Total merit indices in dual purpose cattle
The economic efficiency of dual purpose cattle is influenced by a large number of traits which may be classified in groups of dairy, beef and functional traits. The combination of estimated breeding values for single traits in a total merit index, as long practised in some Scandinavian countries, is currently being implemented in a number of Central European states. Economic values for populati...
متن کاملLow Cost Feeding Strategies for Dual Purpose Cattle in Venezuela
This simulation study was to evaluate low cost feeding strategies in response to higher cost of commercial concentrates to maintain current milk sales from dual purpose cattle herds in the humid lowlands of western Venezuela. Data were from farm surveys in 1987 and 1988. Baseline net margins from milk and beef per cow per year were $132 and $99 for two farm cases with average dally milk of 10 a...
متن کاملDual Purpose Hashing
Recent years have seen more and more demand for a unified framework to address multiple realistic image retrieval tasks concerning both category and attributes. Considering the scale of modern datasets, hashing is favorable for its low complexity. However, most existing hashing methods are designed to preserve one single kind of similarity, thus improper for dealing with the different tasks sim...
متن کاملEvaluation of yield of promising dual purpose grain- forage sorghum lines (Sorghum bicolor L. Moench) using drought tolerance indices
To evaluate and select the promising lines of dual purpose grain-forage sorghum under drought stress conditions, a field experiment assplit plot arrangements in randomized complete block design with three replications was carried out atresearch field station of Seed and Plant Improvement Research Institute, Karaj, Iran, in 2014 and 2015 growing seasons. Irrigation levels (60 mm, 120 mm and 180 ...
متن کاملStrategies of European Fleckvieh Cattle Breeding to Optimize Dual-purpose Breeding Particularly for Beef Production
The Fleckvieh breed, while internationally recognized as a dual-purpose breed is primarily used as a beef production animal in Ireland. However because of ever increasing pressure to improve efficiency, it is now accepted in Irish cattle breeding that beef production characteristics should be included in the national dairy cattle breeding programme. This development was accepted following a com...
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ژورنال
عنوان ژورنال: Archives Animal Breeding
سال: 2000
ISSN: 2363-9822
DOI: 10.5194/aab-43-597-2000