Die doeltreffende benutting van die valleibosveld

Uittreksel

Die ontwikkeling van die ariede Valleibosveld tot sy voile potensiaal word bespreek. Boerbokke en Dorpers selekteer binne hierdie veldtipe materiaal watr verskillend in kwaliteit is. Dorpers selekteer hoofsaaklik grasse teenoor Boerbokke wat hoofsaaklik struike benut. Resultate dui daarop dat meer struikbenutters per eenheidsoppervlakte aangehou kan word as Dorpers en dat die produktiwiteit van die struikkomponent maklik oorskat word. Dit blyk verder dat die veelading by maksimum produksie per dier nader aan die biologiese optimum is as die veelading by maksimum produksie per hektaar. Deur die meervoudige benutting van die Valleibosveld kan produksie per eenheidsoppervlakte betekenisvol verhoog word.

Abstract

The development of the arid Valley Bushveld to its full potential is discussed. Boer goats and Dorpers select forage of different quality within this veld type. In addition, Dorpers are chiefly grazers while Boer goats are browsers. The results show that more browsers can be maintained per unit area than grazers and that the productivity of the browse can easily be overestimated. It appears further that the stocking rate corresponding to maximum production per animal is closer to the biological optimum than that at maximum production per hectare. Through multiple utilization of the Valley Bushveld, overall production per unit area can be significantly increased.

Notes

Gebaseer op ‘n gedeelte van ‘n D.Sc. (Agric.) verhandeling, Universiteit van Pretoria.

Adres: Department Plantproduksie (Weidingkunde), Universiteit van Pretoria.