ABSTRACT. This study was carried out to evaluate the effects of pequi peel flour (PPF) in the diet of laying Japanese quails on their productive performance and on the quality and cost of the eggs produced. A total of 160 quail (Coturnix coturnix japonica) were distributed in a completely randomized design with four treatments and five replicates with eight birds each. Treatments consisted of different levels of PPF (0, 1, 2 and 3%) in a commercial diet based on sorghum. Evaluated parameters were productive performance (daily feed intake, laying rate, egg weight, egg mass and feed conversion rate), egg quality (yolk, albumen and eggshell weight and measures, yolk colour, ash and calcium content of eggshell, specific weight, Haugh unit, and nutrient content of the egg) and average cost of the production. PPF did not affect (p > 0.05) productive performance and nutritional composition, quality or average cost of the eggs; however, yolk colour was linearly increased (p < 0.05) with the PPF levels in the diets. It was concluded that PPF might be included in the commercial diets of Japanese quails up to 3% due to the improvement in yolk colour.Keywords: alternative feed for quails, Caryocar brasiliense Camb., pequi by-product.Farinha de casca de pequi em dietas para codornas japonesas RESUMO. Este estudo foi realizado para avaliar os efeitos da farinha de casca de pequi (FCP) em dietas para codornas japonesas sobre o desempenho produtivo, a qualidade dos ovos e o custo dos ovos produzidos. Foram distribuídas 160 codornas (Coturnix coturnix japônica) em um delineamento inteiramente casualizado com quatro tratamentos e cinco repetições com oito aves cada. Os tratamentos consistiram de níveis de FCP (0, 1, 2 e 3%) em ração comercial à base de sorgo. Os parâmetros avaliados foram o desempenho produtivo (consumo de ração diário, taxa de postura, peso do ovo, massa de ovo e conversão alimentar), a qualidade do ovo (peso e medidas de gema, albúmen e casca dos ovos, cor da gema e teores de minerais e de cálcio da casca do ovo, peso específico, unidade Haugh e teor de nutrientes dos ovos) e o custo médio da produção. A FCP não afetou (p > 0,05) o desempenho produtivo, a composição nutricional, a qualidade e o custo médio dos ovos, entretanto, a cor da gema aumentou linearmente (p < 0,05) devido ao aumento dos níveis de FCP nas dietas. Concluiu-se que a FCP pode ser incluída nas dietas comerciais para codornas Japonesas até 3% por melhorar a cor da gema.Palavras chave: alimento alternativo para codornas, Caryocar brasiliense Camb., subproduto do pequi.

Background: The material placed into the nest should provide comfort to both does and their kits. Objective: To evaluate the effect of different nesting materials on rabbit doe performance and nest building. Methods: Thirty primiparous rabbit does were randomized allotted in a block design with three treatments and ten replicates each. The treatments consisted of nest bedding with wood shavings (280 g, control), Tifton hay (220 g), and thin strips of newspaper (200 g). The state of the nest was assessed to evaluate mixing of the material with doe's hair and preservation of the original material. Kit body weight, daily weight gain, and survival rate were evaluated from birth to weaning. Results: The nesting material did not affect the mixing level of material and hair, amount of hair in the nest, body weight, daily weight gain, or survival rate of rabbits from birth to 35 d of age (p>0.05). However, preservation of original material in the nest was lower when Tifton hay was used (p<0.05). Correlations between material type and total number of born alive and the amount of hair, mixture level between hair and material, and material preservation in the nest were not significant (p>0.05). No correlation (p>0.05) was observed between material preservation and hair presence or mixture level between both. Positive correlation between hair presence and mixture level (p<0.001) was observed.