A bio-economic modelling project for small-scale milk production systems in South-East Brazil: Part 2—refinement and use of the model to analyse some short- and long-term management strategies

Autor:	J.M. Veil, N.R. Brockington, A.G. de Assis, M.L. Martinez
Rok vydání:	1986
Předmět:	Natural resource economics business.industry animal diseases Environmental resource management Energy balance Culling Term (time) Bio economic Scale (social sciences) Herd South east Production (economics) Animal Science and Zoology business Agronomy and Crop Science
Zdroj:	Agricultural Systems. 20:53-81
ISSN:	0308-521X
DOI:	10.1016/0308-521x(86)90035-1
Popis:	The further development and use of a bio-economic model to simulate small-scale dairy enterprises in South-East Brazil are reported. The account of animal nutrition has been refined to take account of protein requirements in addition to energy balance. A new version has been developed which allows for the inheritance of production traits. The model has been used to analyse the effects of short-term management decisions on feeding strategies and longer term breeding policies for herd development. It has been used, also, to examine the possibilities of culling for reproductive performance and the effects of a range of growth rates of replacement heifers on overall herd performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5f9130edabbc387aa75a07fcf2294bbb https://doi.org/10.1016/0308-521x(86)90035-1 Zobrazit plný text záznamu