Reproductive and Physiological Response of New Zealand White Rabbit Does Fed on Discarded Palm Fronds.

Abstract

This study carried out to determine the effects of substitution 25 and 50% of clover hay with discarded palm fronds (DPF) or biologically treated discarded palm fronds (Bio-DPF) in does diet on reproductive, physiological response and economic efficiency of New Zealand White (NZW) rabbit does. Twenty five New Zealand White (NZW) does aged 5 months weighting 3140± 26.55g were randomly distributed into 5 experimental treatments (5 does/ treatment). Experimental diets were as follows: diet 1: A control without substitution, while in the other diets contained 5 and 10% untreated and treated discarded palm fronds with Effective microorganisms (EM 1) to substitute 25 and 50% of clover hay of control diet. Results could be summarized as follows: Biological treatments was improved chemical composition of DPF which mainly CP content was markedly increased but CF was decreased. Inclusion of Bio-DPF in does diet affected significantly both daily feed intake and change in weight of does during gestation and suckling period compared with other treatments. Diets with Bio-DPF significantly (P≤ 0.05) achieved the best figures for litter size of and weights from birth up to weaning that in turn revealed significant (P≤ 0.05) decreased in mortality rate (%) as compared to group fed diet contain 50% DPF. Feeding the does on diets contained Bio-DPF significantly (P≤ 0.05) produced the highest milk yield. Data showed significantly increased in total protein and globulin with Bio-DPF. However, there were significantly decrease in the value of plasma cholesterol and total lipids for rabbits fed on 50%DPF and Bio-DPF. 6-It can be noticed that rabbits fed on the diets contained Bio-DPF had the best economic return compared to other treatments.

Performances, carcass characteristics, and economic benefit of yearling Hararghe highland rams fed diet containing concentrate mixtures and sugarcane bagasse or rice husk treated with Trichoderma viride and effective microorganisms

“…On contrary to this result, Ríos‐Rincón et al ( 2014 ) reported that rib eye muscle area was not significantly affected with different diet consisting of different proportion of protein and energy. El‐Banna, El‐Manylam, et al ( 2010 ) reported higher ADG (19.72 vs. 21.5 g/day), pre‐SW (1885 vs. 1968 g), DP (59.9% vs. 61.6%), and lower FCE (4.56 vs. 4) for rabbits fed on potato vines that were treated with L. acidophilus compared to rabbits fed untreated.…”

“…Moreover, growing animals fed on biologically treated roughages showed better daily gain (Allam et al, 2006), FCE, and pre-slaughter live weight (El-Marakby, 2003) compared to animals fed untreated roughages. In El-Banna, El-Manylam, et al (2010), higher average daily gain (ADG) (19.72 vs.…”

“…Moreover, growing animals fed on biologically treated roughages showed better daily gain (Allam et al, 2006 ), FCE, and pre‐slaughter live weight (El‐Marakby, 2003 ) compared to animals fed untreated roughages. In El‐Banna, El‐Manylam, et al ( 2010 ), higher average daily gain (ADG) (19.72 vs. 21.5 g/day), pre‐slaughter weight (SW) (1885 vs. 1968 g), dressing percentage (DP) (59.9% vs. 61.6%), and lower FCE (4.56 vs. 4) were reported for rabbits fed on potato vines that were treated with L. acidophilus compared to rabbits fed untreated. Contrary to these results, the ADG of sheep fed SCB treated with brown rot fungi ( T. reesei F‐418 ) was less than that of those fed untreated SCB (El‐Banna, Shalaby, et al, 2010 ), but FCE was increased in this study.…”