Effect of Saccharomyces Cerevisiae Feed Supplementation on Haematology and Reproductive Parameters for Algerian Rabbits

Abstract

This study aims at investigating the effect of Saccharomyces cerevisiae (SC) supplementation on reproductive performance, haematological parameters and fertility of rabbits under Algerian conditions. The animals were divided into three groups and received the same feed ration during the experimental period. The control group received a basal diet without feed additives (Group#0) and the two yeast SC groups received 0.3 and 0.6 g/day per head (Group#1 and Group#2, respectively). Semen and blood samples were collected for determination of semen parameters and haematology. The weights of rabbits treated with SC 0.3 g/day were statistically significantly different (P< 0.05) from the control groups and group treated with SC 0.6 g/day. There were significant differences between the treatment groups for (RBCs), haemoglobin (HGB), haematocrit (HCT) and mean corpuscular haemoglobin (MCH) values, with higher values in rabbits supplemented with SC 0.3 g/day and 0.6 g/day, compared to those in the control group. The scrotal diameter did not differ between the dietary treatments. When compared with the control group, feeding rabbits graded levels of SC resulted in an increase in the average semen volume, mass motility and individual motility at day 51 of the experiment. On the other hand, the sperm concentration was significantly lower (P< 0.05) in rabbits supplemented with SC 0.3 g/day and 0.6 g/day during the two months compared to that in the control group. The spermatozoa mortality rate was lower for the rabbits supplemented with SC 0.3 g/day and 0.6 g/day (15.7% and 11.4%, respectively), compared to that in the control group (24%). In conclusion, this study has shown that inclusion of SC 0.3 g/day and 0.6 g/day in the diets of rabbit has positive effects on body weight and sperm analysis. Moreover, it increases the level (RBCs), haemoglobin (HGB), haematocrit (HCT) and mean corpuscular haemoglobin (MCH).

Impacts of Enzymes and Probiotic in Improving the Utilization of Sieved Olive Pulp Meal on Reproductive Performance and Some Blood Traits of Rabbit Bucks

“…Similarly, Seyidoglu et al (2013) reported no significant differences in hematological parameters within treatment groups despite observing a slight increase in hematocrit and hemoglobin concentrations in rabbits supplemented with yeast. In contrast, Besseboua and Ayad (2021) found statistically significant differences between the RBCs, HGB, HCT, GCT, and MCV in rabbits receiving graded amounts of SC and the control group. According to Seyidoglu et al (2013), this variance may be due to the various S. cerevisiae concentrations.…”

“…This result is consistent with recent studies that found probiotics significantly increased total sperm cells and semen volume in the ejaculate of rabbit bucks (Ewuola, 2013 andMymrin et al, 2017). In the same trend, Besseboua and Ayad (2021) noted increases in semen volume, mass motility, and individual motility in the rabbits fed diets supplemented with S. cerevisiae up to 0.6 g/day. Similarly, Emmanuel et al (2019) and Helal et al (2018) found a notable improvement in epididymal sperm characteristics, testicular, sperm concentration, motility and testosterone of rabbit bucks that received SC supplements.…”

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.…”