ABSTRACT In this study, we evaluated the effects of dietary inclusion of ethanolic extract of green propolis (EEGP) on productivity, egg quality, nutrient utilization, and duodenal morphology of 120 Japanese laying quail. The quail were randomly distributed into five treatment groups: one group with no EEGP in the diet (control diet) and four groups with increasing EEGP levels (500, 1000, 1500, and 2000 mg EEGP/kg diet) in the diets. Excreta and diet samples were collected on day 40 and were […]

ABSTRACT The objective of this study was to evaluate the effect of the inclusion of canola and coconut oils to diets of European quail (Coturnix coturnix) over performance and carcass yield. One hundred and ninety-two quail (eight-days old) were randomly allocated to four dietary treatments with six replicates of eight birds each. The treatments were arranged in a factorial 2×2 scheme with two sources of dietary oil containing two levels of canola and coconut oils (1 and 2%). For performance […]

An experiment was conducted to determine the required levels of supplementary vitamin D and calcium in meat-type quail (Coturnix coturnix sp) between 15 and 35 days old. The experiment was a 4 × 4 factorial design with four levels of calcium: 0.42, 0.58, 0.74, and 0.90% and four levels of vitamin D: 1,000; 2,000; 3,000; and 4,000 IU. Body weight and body weight gain increased linearly and feed conversion showed some linear improvement due to increased levels of Ca and […]

The aim of this study was to evaluate the effects of reduction of energetic density of the diet on the quality of Japanese quail eggs, keeping the same metabolizable energy (ME):nutrients relationship. It was used 400 Japanese quails from 76 to 160 days of age, distributed in a complete random design, with five treatments, 10 replicates and 8 birds per experimental unity. It was used five diets with different energetic densities (2,900; 2,800; 2,700; 2,600; and 2,500 kcal ME/kg), keeping […]

The aim of this experiment was to evaluate the effects of energetic density reduction in diets in the performance of Japanese quail, keeping constant the metabolizable energy (ME) to nutrients ratio. A total of 400 Japanese quails with 155 g ± 5.5 g and 76 to 160 days old were distributes to a complete randomized experimental design with five energetic density, eight replicates and ten birds per experimental unit. Five energetic density in the diets was evaluated (2,900, 2,800, 2,700, […]