Nutritive value of diets containing inactive dry yeast for lactating Saanen goats

Abstract

-Twenty-four Saanen goats, 15 multiparous and nine primiparous, were distributed in a completely randomised design in a factorial arrangement (3 diets × 2 parities). The treatments were soybean meal (SB), soybean + dry yeast (SBDY), or dry yeast (DY) as a protein source in the diet, and ground corn, mineral supplement, and corn silage (400 g/kg). The study was conducted to evaluate the nutritive value of diets containing inactive dry yeast as a protein source postpartum, postpeak, and during late lactation in dairy goats. To estimate the faecal excretion of indigestible material, neutral detergent fibre was used as an internal marker. The diets did not affect dry matter intake (DMI). However, DMI and nutrient intake were higher for multiparous goats compared with primiparous goats. The digestibility of dry matter and total digestible nutrients (TDN) were higher for primiparous goats in the postpartum period. In the postpeak and late lactation periods, there were no differences in digestibility of DM and nutrient between parities. The TDN was similar in the diets in the postpeak period and at lactation end. The goats fed the DY diet had lower urea nitrogen in blood. The use of inactive dry yeast to substitute soybean meal in diets for primiparous and multiparous lactating Saanen goats is a good alternative for maintaining the nutritional value of diets.

Effects of yeast (Saccharomyces cerevisiae type boulardii CNCM I-1079) supplementation on growth performance and blood metabolites in Black Bengal goat kids

“…There were no significant differences observed in body weight gain, heart girth, body length and height at withers between the CD and YS diet groups. The results agree with GOMES et al (2014) who reported that body weights were not affected by dry yeast (S. cerevisiae) supplement in the diet. Also, live yeast (S. cerevisiae) supplementation has been described to have no influence on feed intake in terms of dry matter intake (DMI), daily live weight gain and final live weight gain in lambs (ISSAKOwICz et al, 2013;MIKUlEC et al, 2010;KAwAS et al, 2007).…”

Degradation of spent craft brewer's yeast by caprine rumen hyper ammonia‐producing bacteria

“…Similar to bovines, more yeast can be given if it is inactivated. Gomes et al (2014) report feeding as much as 380 g per day to Saanan dairy goats. However, feeding trials are needed to determine feeding rates for inactivated craft brewers' yeast for meat goat production.…”

<b>Performance of dairy females fed dried yeast from sugar cane

“…Additionally, Gomes, Alcalde, Lima et al (2014) found that yeast is a good alternative protein source to replace soybean meal in diets for lactating goats; it also does not affect the DM and nutrient intake, nor the nutritive value of diets. Otherwise, Lima, Alcalde, Freitas et al (2012) found lower intakes of DM and CP for goats fed dried yeast instead of soybean meal.…”