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  • Title: Effect of a diet containing date pits on growth performance, diet digestibility, and economic evaluation of Japanese quail (Coturnix coturnix japonica).
    Author: Kamel ER, Mohammed LS, Abdelfattah FAI.
    Journal: Trop Anim Health Prod; 2020 Jan; 52(1):339-346. PubMed ID: 31359353.
    Abstract:
    This study was performed to investigate the effect of feeding different levels of date pits (DP) to growing Japanese quails on growth performance, diet digestibility, blood parameters, carcass traits, and economical value of the farm production. A total of 204 1-day-old quail chicks were randomly divided into 4 groups (three replicates each). DP was chemically analyzed and used as 0%, 2%, 4%, and 6% to formulate 4 balanced experimental diets (control, DP-2, DP-4, and DP-6, respectively). The feed and water were given ad libitum. Feed intake (FI) and body weight gain (BWG) were recorded weekly, and the feed conversion ratio (FCR) was calculated. A digestibility trial was conducted, and the digestion coefficient (DC) was calculated for diet dry matter (DM) and nutrients. At the end of the experiment, carcass traits were measured and blood samples were collected for blood picture analysis. Economical evaluation of the test diets was carried out to determine the net return (NR) of feeding DP to quails. Results showed significant (P < 0.05) change in FI and final body weight among treatments. FCR of DP-6 group was the best in all treatments. DC of diet DM and nutrients were reduced with increasing DP level except for nitrogen-free extract (NFE). Carcass traits and blood parameters were within the normal range with no adverse effects. From the economic point of view, quail selling return values were significantly higher (P < 0.05) for all the groups supplemented with DP than the control one. Total return (TR) and NR values showed insignificant (P > 0.05) differences among the experimental groups; they were higher for DP-fed groups compared with the control. The present results demonstrated a beneficial effect of DP inclusion in the diet of quails in terms of growth performance, blood profiles, carcass traits, and economic value.
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