Balance study on sheep fed with beet molasses solubles

Abstract

A balance study was carried out to investigate digestibility and retention of major nutrients in wethers fed rations in which condensed beet molasses solubles (CBS)formed 27% of the dietary OM. Results showed that CBS contained 8,3 MJ of ME and 19 9 ruminal degradable protein-nitrogen and should be included in rations containing components with high ME contents. CBS with sugar beet pulp and hay in the ratio 27:57:16 on a OM basis stimulated crude fibre digestibility. The adverse effect of high levels of potassium can be offset by the inclusion of 10 9 MgO per kg CBS.

'n Balansstudie is gedoen om die verteerbaarheid en retensie van die vernaamste voedingstowwe te ondersoek in hamels gevoer met rantsoene waarvan die opgeloste voedingstowwe van gekondenseerde beetmelasse (CBS)27% van die dieet OM uitgemaak het. Resultate het getoon dat CBS 8,3 MJ ME en 19 9 prote'len-stikstof wat in die grootpens afgebreek kan word, bevat en dit behoort ingesluit te word in rantsoene wat bestanddele met 'n hoe ME inhoud bevat. CBS met suikerbeetpulp en hooi in 'n verhouding van 27:57:16op 'n OM basis het ruvesel verteerbaarheid gestimuleer. Oie nadelige effek van hoe kalium vlakke kan teengewerk word deur 10 9 MgO per kg CBS in te sluit.

Keywords: sheep, beet molasses solubles, digestibility, nitrogen retention, allantoin excretion, magnesium absorption, magnesium supplementation.