Kamel Eman R, Mohammed Liza S, Abdelfattah Fathy A I
Economics and Farm Management, Department of Animal Wealth Development, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Qalyubia, 13736, Egypt.
Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Qalyubia, 13736, Egypt.
Trop Anim Health Prod. 2020 Jan;52(1):339-346. doi: 10.1007/s11250-019-02021-x. Epub 2019 Jul 29.
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.
本研究旨在探讨给生长中的日本鹌鹑饲喂不同水平的枣核（DP）对其生长性能、日粮消化率、血液参数、胴体性状以及农场生产经济效益的影响。总共204只1日龄的鹌鹑雏鸡被随机分为4组（每组3个重复）。对枣核进行了化学分析，并分别以0%、2%、4%和6%的比例用于配制4种平衡的实验日粮（分别为对照组、DP-2组、DP-4组和DP-6组）。自由采食饲料和饮水。每周记录采食量（FI）和体重增加量（BWG），并计算饲料转化率（FCR）。进行了消化率试验，并计算了日粮干物质（DM）和养分的消化系数（DC）。在实验结束时，测量胴体性状并采集血样进行血常规分析。对试验日粮进行经济评估，以确定给鹌鹑饲喂枣核的净收益（NR）。结果表明，各处理间的采食量和最终体重有显著（P < 0.05）变化。DP-6组的饲料转化率在所有处理中最佳。除无氮浸出物（NFE）外，日粮干物质和养分的消化系数随枣核水平的增加而降低。胴体性状和血液参数在正常范围内，无不良影响。从经济角度来看，所有添加枣核的组鹌鹑销售回报值均显著高于对照组（P < 0.05）。实验组之间的总回报（TR）和净收益值差异不显著（P > 0.05）；与对照组相比，饲喂枣核的组更高。目前的结果表明，在鹌鹑日粮中添加枣核对其生长性能、血液指标、胴体性状和经济价值具有有益影响。
