Effects of whey and molasses as silage additives on potato hash silage quality and growth performance of lambs

Abstract

________________________________________________________________________________ AbstractThe aim of the study was to determine the effect of whey or molasses on the fermentation quality when added to potato hash silage. In addition, lamb performance, digestibility and feed intake of diets containing potato hash silage were compared with a diet containing maize silage (MSd). Potato hash silage (treated with no additive, or whey, or molasses) and MS were produced in 210 L drums for 90 days and the fermentation quality of the silages was determined thereafter. Diets were formulated and fed ad libitum to 32 South African Dorper lambs (23.5 ± 0.873 kg live weight) for 63 days. A digestibility study was conducted during the last week of the study. The untreated potato hash silage (UPHS) was poorly fermented as indicated by higher concentrations of butyric acid, ammonia-N and pH compared to the other silages. Higher dry matter intake (DMI) and daily weight gains (218 and 250 g/d) were obtained with MSd and molasses treated potato hash silage diet (MPHSd) compared to the other diets. Nutrient digestibility was lower in the UPHS diet compared to the other dietary treatments. It was concluded that the fermentation quality of potato hash was improved with the addition of whey and molasses. Furthermore, growth performance was higher with the MSd and MPHSd than of the other treatments, suggesting that MPHSd can safely replace MSd in a lamb diet at a dietary inclusion level of 20% without any adverse effect on animal performance. ________________________________________________________________________________

Productive and reproductive performance of Dorper and its crossbreds under a Romanian semi-intensive management system

“…There was similar growth performance for the DO and R 1 lambs (197.6 g and 204.3 g, respectively) (P >0.05). These values were comparable with those recorded by Nkosi & Meeske (2010), who reported ADGs ranging between 190 g/day and 250 g/day. Average daily gain of F 1 crossbred lambs did not differ significantly (P >0.05) from that recorded in the purebred DO and TA (188.9 g/day,197.6 kg/day and 185.2 kg/day, respectively).…”

Effects of adding whey and molasses on corn silage quality, growth performance and health of Simmental fattening calves

“…The results of this experiment showed that addition of whey and molasses had no significant effects on body weight, feed intake and FCR of Simmental fattening calves. Nkosi and Meeske (2010) reported that adding molasses on potato hash silage, improved fermentation and increased feed intake and body weight of growing lambs. Addition urea and molasses on Palm silage increased body weight and improved FCR of fattening goats (salemi et al, 2000).…”

Chemical Composition and Fermentation Characteristics of Silages of Potato, Sweet Potato and Turnip with Rice Straw and Studies the Effect of Rations Containing Its Silages on Performance and Economical Efficiency of Growing Lambs

“…Sadri et al (2018) noticed that average daily gain (ADG) of growing lambs was increased with increasing potato-wheat straw silage in the rations up to 300 g/kg DM. Nkosi and Meeske (2010) found that ADG was 192 g/d of lambs fed ration containing 20% potato hash silage with CFM. Nkosi and Ratsaka (2010) found that feed conversion was 10.2 of lambs fed ration containing 22.5% silage of potato hash and hay + CFM.…”