Fertility, mortality, milk output, and body thermoregulation of growing Hy-Plus rabbits fed on diets supplemented with multi-enzymes preparation

Abstract

The aim of this study was to evaluate the fertility status, milk output, mortality, and body thermoregulation of rabbit does as affected by different levels of multi-enzyme extracts (EZ) in their diets. A total of 120 Hy-Plus rabbit does were divided into four comparable experimental groups (n = 30 does per group). Animals of each group were divided in six pens (five animals per pen), and each pen was used as an experimental unit. The first group was kept untreated and fed a commercial diet alone without enzyme extracts (EZ0), while the other groups were fed the same diet but supplemented with 1 (EZ1), 3 (EZ3), and 5 (EZ5) kg/ton of enzyme extracts, respectively. Feeding EZ additive increased (P < 0.05) conception and kindling rates, litter size and weight at birth, and litter size and bunny weight at weaning, with decreasing (P < 0.05) abortion rate. Moreover, total milk yield increased (P < 0.05) with increasing level of enzyme supplementation. Pre-weaning mortality decreased (P < 0.05) with EZ inclusion. Signs of vitality (rectal temperature, skin temperature, earlobe temperature, respiration rate, and pulse rate) were improved with EZ inclusion. For all results, 5 kg EZ/ton of feed was more effective than 1 and 3 kg EZ/ton feed. It can be concluded that supplementation of EZ in rabbit diet decreased mortality rate and enhanced fertility status and milk output.

Partial phenotype conversion and differential trait response to conditions of husbandry in mice

“…Notably, diets with positive effects on body weight also increased reproductive performance in mice (Hoover-Plow et al 1988 ), suggesting that the increases of body weight and litter size in DUC SPF mice are connected. Also, in other mammalian species, dietary factors have been identified with an effect on litter size (Gado et al 2016 ; Li et al 2015 ). Under field conditions, a link between food quality and reproductive performance could not be observed in mice (Ylonen et al 2003 ).…”

Anaerobic ensiling of raw agricultural waste with a fibrolytic enzyme cocktail as a cleaner and sustainable biological product

“…Ten samples of 1 kg each of the fibrous feeds were chopped at 5 cm and mixed with the enzyme cocktail in plastic bales. Based on previous experiments recommendations (Khattab et al, 2011;Abdel-Aziz et al, 2015;Gado et al, 2016) with the same enzyme preparation, the enzyme cocktail was used at three levels of 0, 1 or 3 mL enzyme/kg dry matter (DM) of feed. Feedstuffs were moistened to a relative humidity of approximately 50%.…”

Utilization of Anaerobic Microbiology to Improve Animal Production

“…Moreover, total milk yield increased and sings of vitality were improved with ZADO addition. the supplementation of ZADO with 5 kg/ton in rabbit diets were more effective to improve the reproductive performance and milk output in rabbit does (Gado et al, 2016).…”