Linear analysis method to calculate the specific forage ingestion by livestock
Native pastures include normally tens of species most of which are good forages.Measurements of massive biomass grazed are easy, whilst the calculation of specific ingestion is very difficult, nonetheless to know how much of each species is grazed by livestock can be useful to improve calculations of pasture carrying capacity and it is useful to research on traceability, in fact some pasture plants contain traceable components but they are not grazed and consequently the compounds are not found in the final produce, be it meat, milk or cheese.Several methods are used ( Hodgson et al, 1981 ) but all are not precise : observations of livestock at grazing are done at distance from plants,animals fistulas change very much the grazing behaviour of livestock, twin sample areas and separate weighing take too long time and need many repetitions.We propose a simple method based on measurement of the massive biomass ingested and calculation of the percentual specific ingestion by the number of bites along lines of botanical analysis.
pasture species traceability palatability indices
Pardini A Pratesi V Staglianò N.
University of Florence-Piazzale Cascine 18-50144 Firenze(I )
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）