Influence of Using Plant Feed Additives as Growth Promoters on Productive Performance of Growing Rabbits

Nutrient utilization, growth performance, and antioxidative status of Barki lambs fed diets supplemented with black (Nigella sativa) and rocket (Eruca sativa) seeds

“…Whereas, Torres et al ( 2020 ) concluded from a meta-analysis study that using EO at a level higher than 100 mg/kg of dietary DM reduced the ADG of sheep. In concordance with the present data, feed intake was significantly decreased when ES seeds were added to diets of New Zealand rabbits at 1% (Fayed and Azoz, 2018 ) or when ES cake was included in diets of crossbred calves (Das et al, 2003 ). In contrast, feed intake was significantly increased with ES supplementation (El-Nattat and El-Kady, 2007 ) or it was not significantly changed (El-Nomeary et al, 2015 ; El-Badawy et al, 2018 and Abou El-Maaty et al, 2021 ).…”

“…Regarding the effect of ES seeds addition in the present study, the improvement in ADG (numerically) and FCR ( P < 0.05) compared with control agrees with results obtained when ES seeds were added to the diets of rabbits (Fayed and Azoz, 2018 ). Furthermore, the inclusion of ES meal significantly enhanced ADG and FCR either of crossbred calves (Das et al, 2003 ) or rabbits (El-Nattat and El-Kady, 2007 ; El-Nomeary et al, 2015 ).…”

“…Regarding the effect of ES seed supplementation, the ESD diet recorded a significant ( P < 0.05) increase in DM digestibility, with higher non-significant values for the other nutrients. However, Fayed and Azoz ( 2018 ) reported significant increases in the digestibility of CP, CF, EE, NFE, and nutritive value as TDN, with no significant effect on the digestibility of DM, OM, and DCP value when ES seeds were added at 1% of growing rabbits’ diet. Also, supplementation of rabbits’ diet with 3% ES seeds meal increased the digestibility of OM, CP, CF, EE, NFE, and values of TDN and DCP with no significant effect on DM digestibility (El-Nomeary et al, 2015 ).…”

“…However, concentrations of TP, albumin, and globulin were not significantly altered by the addition of NS seeds in lambs’ and buffaloes’ diets (Odhaib et al 2018a ; Abo El-Nor et al 2007 , respectively). Also, blood TP and globulin were significantly unchanged with ES addition either in the form of seeds (Fayed and Azoz, 2018 ) or oil (Hanafi et al, 2010 ; Hafez et al, 2016 ). In contrast, Khalil et al ( 2015 ) and El-Badawy et al ( 2018 ) showed significant increases in TP and albumin with the addition of ES seeds or oil to fish or lambs’ diets, in the same order.…”

Effect of Some Medical Herbs on Productive Performance of Lactating Zaraibi Goats

“…The present results are in harmony with those recorded by Abdelhamid et al (2011) who reported that improved economic efficiency of dairy Zaraibi goats which fed ration supplemented with Rosemarinus officinalis additive. Similarly, Fayed and Azoz (2018) indicated that the bay laurel leaves (Laurus nobilis L.) supplementation into the diets of rabbits at different levels had the best economic return over the control diet that free from such supplement. Likewise, Allam and El-Elaime (2020) recorded that supplementing rosemary leaves into the diet of growing lambs had increased markedly the economic efficiency based on the control ration.…”