Growth performances and digestability in Pekin ducks fed on a diet containing fermented agro-industrial by-products

Abstract

Poultry industries in Indonesia develop rapidly in line with the increasing demand for poultry meat and eggs. However, fluctuations in availability and the high price of commercial feed bring about a serious problem for traditional farmers. The objective of this study was to evaluate the effect of feeding a diet containing a fermented mixture of water hyacinth leaves (Eichornia crassipes), rice bran, and blood (WRPS) on the production performance and nutrient digestibility of Pekin ducks. This research was conducted for 6 weeks using 100 Pekin ducks (unsex) aged 2 weeks. This study was conducted using a completely randomized design consisting of 4 treatments and 5 replications. The dietary treatments were T0 (control), T1 (30% WRPS), T2 (40% WRPS), and T3 (50% WRPS). At the end of the feeding trial, one duck from each replicate was put in a metabolic cage for digestibility study, adopting the total collection method. Incorporating WRPS in the diet brought significant differences (p<0.05) in feed intake, body weight gain, feed conversion, and digestibility. It can be concluded that the fermented mixture of water hyacinth leaves, rice bran, and protein of slaughtered waste as much as 30% can be used in the diet of Pekin ducks.

Heavy metal content in duck eggs and meat that consumes feed containing Sapu-sapu fish (Hypostomus plecostomus)

“…The Apparent Metabolizable Energy (AME) of the Sapu-sapu fish was obtained at 2,890.52±34.01 kcal/kg. This value is higher than a fish meal (2,753.1 kcal/kg) which was tested on male Rhode Island Red chickens (Zarei 2013;Gunawan et al 2018), fish meal soluble dehydrated (2,530 kcal/kg), which was tested on chickens (Applegate and Angel 2014), Fish meal meat (12.5 MJ/kg) tested on cross ducks (Abu-Alya et al 2021), lower than the AME of fresh and dry earthworms (3,679.55 kcal/kg and 3,390.66 kcal/kg) tested on broilers (Zang et al 2018), dry meat soluble (3,266 kcal/g) tested on white Pekin ducks (Pangeran et al 2021;Georganas et al 2023), meat and bone meal (3,916 kcal/kg and 1,781 kcal/kg) tested on ducks Pekin (Adedokun and Adeola 2005).…”