RESPONSE OF JAPANESE QUAIL TO FEED BY ORGANIC COMPOUNDS | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 15, Volume 31, Issue 2, July 2017, Page 171-188 PDF (425.94 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2017.191262 | ||||
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| Authors | ||||
| M. A.A. Abdel-Mageed; E. M. EL-Kamash | ||||
| Animal Prod. Res. Inst., Agric. Res. Center, Ministry of Agric, Doki, Giza, Egypt. | ||||
| Abstract | ||||
| The experiment was carried out at the Poultry Farm, Faculty of Agriculture, Fayoum University (middle Egypt). This study aims to show the effect of dietary malic acid (MA) supplementation as a growth promoter on Japanese quail performance, carcass characteristics, intestinal villi and pH, bacteria enumeration, some blood parameters and digestibility coefficients. A total number of 360 unsexed one day-old Japanese quail chicks (Coturnix coturnix japonica) were equally divided into four groups of six replicates each. Two starter-grower corn-soybean meal (C-SBM) basal diets were formulated to contain 24 % CP and 2900 kcal ME /kg diet and 22 % CP and 2750 kcal ME /kg diet, respectively. Also, two layer C-SBM basal diets were formulated to contain 20 % CP and 2900 kcal ME /kg diet and 18 % CP and 2750 kcal ME /kg diet, respectively. Each of the four basal diets was either unsupplemented or supplemented with 0.15% (1.5 kg/ton) dietary malic acid. Therefore, four experimental treatments were used in both startinggrowing and laying periods. Each chick group fed one of the four experimental diets. At 35 days of age, a slaughter test was performed to determine carcass traits, edible giblets, lymphoid organs and intestinal villi, microflora count and pH. Blood samples were taken and assayed to determine some serum blood parameters. Digestibility trials were conducted to determine nutrients digestibility for starter-grower experimental diets. At laying period, egg number, weight, mass and production rate as well as feed intake and feed conversion were recorded. At the end of the 90-day period, egg samples were taken and broken out to determine internal egg quality and analysis. From nutritional of view, it was observed that using malic acid at a level of 0.15% (1.5 kg/ton) in Japanese quail diets containing sub-optimal energy and protein levels helped in reducing microflara count, particularly pathogens and in turn, improved quail performance and immunity. However, using MA at a level of 0.15% (1.5 kg/ton) in Japanese quail diets containing optimal energy and protein levels caused an increase in egg mass and a decrease in feed intake. | ||||
| Keywords | ||||
| Malic acid; growth performance; carcass; villus height and width; bacteria enumeration and intestinal pH; blood serum; egg production; digestibility trials; egg quality; quail | ||||
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