Impact of Feeding Yeast Culture on Milk Yield, Milk Components, and Blood Components in Algerian Dairy Herds

Abstract

The main objective of this study was to estimate the effect of supplementation with Saccharomyces cerevisiae (BIOSAF ® SC 47), on body condition score, milk production and some biochemical parameters in peripartum dairy cows. The experiment was conducted during 14 days before parturition to 45 days postpartum (20 milking). Holstein cows (16 primiparous and 4 multiparous) were randomly divided into two groups (n=10); the groups were fed with same diet: One group received, Saccharomyces cerevisiae. Milk production and blood samples were taken. Body condition scores (BCS) were recorded. For statistical analysis, Minitab ® 15.1.30.0.Fransh (© 2007 Minitab Inc) software was used. Addition of yeast culture to the diet ration was significantly increased. The average milk production per cow between the groups in all the experiment (by about +25%, i.e. 4.8 l/day/cow), with a positive effect in milk fat content and stabilization of the BCS, with reduction of reserve mobilization after calving. Moreover, this treatment has also induced systemic biochemical changes: increase of plasmatic total protein and albumin, whereas triglyceride and creatinine concentrations were significantly lowered, and cholesterol concentrations slightly reduced. The addition of yeast culture in the diet of Holstein cows was beneficial in improving milk production and milk fat, and some biochemical parameters.

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“…The results of the study coincide with those of other authors (Poppy et al, 2012;Maamouri et al, 2014;Para et al, 2018) on the positive effect of combined probiotic feed additives with yeast on the milk productivity of cows. As noted in the literature review, yeast supplements increase milk yield in the first half of lactation, and milk fat content increases at the end of lactation, which allows using them during different lactation periods (Ayad et al, 2013;Bakr et al, 2015;Sun et al, 2021). However, the effectiveness of the application varies depending on the diet and strain, which is confirmed by the results obtained.…”

“…Feeding cows with S. cerevisiae included leads to an increase in milk yield (by 1.18 kg/day), milk fat, and protein during the first 70 days of lactation (Poppy et al, 2012). According to other studies, the use of yeast from 73 days of lactation lasting 70 days led to an increase in milk yield by 1.36 litres (Sun et al, 2021), and after 42 days of feeding yeast to cows, milk yield increased by 23% and the peak lactation lengthened by 1 week (Ayad et al, 2013). Other authors also report an increase in milk yield and a decrease in the percentage of protein in milk (Bakr et al, 2015).…”

Inventoried Yeast Species in Algeria

“…We note from some research works the use of yeast as fortifying in animal feed, in particular, dairy cows using Saccharomyces cerevisiae to improve milk production [39][40][41]. So far we cannot consider this as community adoption, but it will be in the future due to the increasing need and cost of feed.…”

Isolation and identification of Saccharomyces cerevisiae for fermentation of rice polishing in Livestock feeding

“…An Acad Bras Cienc (2020) 92(3) e20191140 2 | 8 composition for live yeast culture consists of dry matter (DM) 93%, crude protein (CP) 44.50%, ether extract (EE) 1.10%, ash 3.50%, crude fiber (CF) 2.75%, metabolizable energy (ME) 1990 Kcal/ Kg (Küçükersan et al 2009). Several studies has been reported with positive influence of Saccharomyces cerevisiae on DM intake (Titi et al 2008), nutrient digestibility (Obeidat et al 2018, Ullah et al 2017, live weight gain (Yalcin et al 2011), feed conversion ratio (Lesmeister et al 2004), ruminal parameters (rumen pH, ruminal ammonia concentration), milk production and milk composition (Ayad et al 2013). Therefore, it can be a better replacement of conventional protein sources (Sharif et al 2018).…”