Beet‐vinasse (condensed molasses solubles) as an ingredient in diets for cattle and pigs – nutritive value and limitations

Abstract

Sugar beet vinasse, originating as the condensed molasses residue from yeast production, was fed to bulls and pigs to determine the feed value. It contained, per kg dry matter (DM content 66.8%), 293 g crude protein, 305 g N-free extract (therefrom 34.4 g total sugar), and 395 g crude ash. The experiment was carried out with three fattening bulls (German Holstein) and four adult pigs (Gottingen Minipig). In bulls, two balance trials lasting 20 days each (10 days adaptation; 10 days collection) were conducted in which subsequently a basal ration without and with vinasse (14% in DM) was fed. In pigs, the experiment consisted of three 12-day balance trials with the final 5 days as collection period. In the first trial, pigs received a basal diet without vinasse and in the following, a mixed diet with 16 and 43% vinasse (in DM) respectively. Digestibilities of components in vinasse in bulls were: organic matter 73.5%, crude protein 72.6%, and N-free extract 52.3%. In bulls, no influence on faeces quality could be detected while feeding 14% vinasse in DM. While feeding 16% vinasse in DM to pigs, the digestibility of organic matter amounted to 72.3% (crude protein 71.8%; NfE 74.6%). Feeding higher amounts of vinasse (43% in DM) in the diet of pigs, digestibilities were reduced (organic matter: 61.6%), which might be a result of a reduced retention time of the chyme as a result of an osmotically driven diarrhoea because of unexpectedly high sulphate (136 g/kg DM) content in the vinasse. It is concluded that because of organic matter digestibility >70% for cattle and pigs, the use of vinasse in these species in small proportions is reasonable.

Effect of substitution of corn for molasses in diet on growth performance, nutrient digestibility, blood characteristics, fecal noxious gas emission, and meat quality in finishing pigs

“…In this study, there was no significant difference in fecal noxious gas emission among the treatments. There are no reports on the effect of molasses on fecal noxious gas emission, and there are only some studies assessing the effect of molasses on the DM in feces (Velázquez et al, 1969;Perez et al, 1983;Stemme et al, 2005). Therefore, it is difficult to explain the results of this study, and more studies on this aspect are needed.…”

“…One of the trials in growing swine performed by Brooks (1967) demonstrated that DM digestibility was not influenced by 20% molasses treatment compared with the basal group (without molasses). However, digestibility was decreased with the highest level of condensed molasses solubles (of DM by 43%) in finishing pigs (Stemme et al, 2005). Compared with starch treatment, digestibilities of DM and energy were significantly reduced in the treatment containing 68.5% molasses in growing pigs .…”

Effect of vinasse (condensed molasses solubles) on performance and meat chemical composition of Holstein male calves

“…The main organic acids present in the vinasses are oxalate, lactate, acetate and malate, together with pyruvate. It is high in potassium and sulphates content (Troccon & Demarquilly 1989;Stemme et al 2005), so vinasse can be used for animal feed ingredient as a source of nutrients and minerals (Stemme et al 2005;LopezCampos et al 2011).…”

Opportunities for avoidance of land-use change through substitution of soya bean meal and cereals in European livestock diets with bioethanol coproducts

“…In response to Searchinger's analysis, Croezen & Brouwer (2008) suggested that wheat (W‐) DDGS produced in Europe would substitute locally produced wheat and maize, but also soya bean meal (SBM) originating in South America. Other protein‐rich coproducts include vinasse (up to 35 g 100 g −1 ; Stemme et al , 2005) originating from spent yeast cells and unfermented sugars during production of bioethanol from beet sugar. This fraction is often added back to the sugar beet pulp (SBP) to give a feed which has a crude protein content in the range 10.6–13.5 g 100 g −1 (Ministry of Agriculture Fisheries & Food, 1975).…”