Effect of crude protein levels and organic selenium supplementation in the diets fed during the breeding season on reproductive parameters of red-winged tinamous (Rhynchotus rufescens)

Abstract

There is little information on the nutrition of red-winged tinamous (Rhynchotus rufescens) reared in captivity, and their nutritional requirements still need to be determined. This study aimed at determining dietary crude protein requirements and testing four organic selenium supplementation levels in the diet of red-winged tinamous during the breeding season. Birds were housed in a conventional broiler house divided in 16 boxes with one male and three females each. Iso-energy (2800kcal ME/kg) pelleted feeds, based on corn and soybean meal, were supplied in tube feeders. In the first experiment, treatments consisted of four different diets containing different crude protein (CP) contents (15, 18, 21, or 24%) and in the second experiment, the four diets contained equal protein level (22.5%) and four different organic selenium levels (0, 0.2, 0.4, or 0.8ppm). Data were analyzed by the least square method. The best egg weight and eggshell thickness were obtained with 22.5% dietary CP. Organic selenium did not influence the studied reproductive traits of red-winged tinamous (Rhynchotus rufescens) males or females

Effects of Protein in Diet and Sex Ratio on Egg Production, Egg and Hatching Chick Weight, Fertility, Hatchability and Embryonal Mortality in Pheasants (Phasianus Colchicus)

“…Fertility, hatchability and embryonic mortality can be influenced by egg weight (Sczerbinska et al, 1999, Petek et al, 2003, Abiola et al, 2008, Caglayan et al, 2009, lenght of storage period (Fasenko et al, 2001, Tona et al, 2004, Oral Toplu et al, 2007, age of flock (Elibol et al, 2002,Seker et al, 2004, Sari et al, 2010, breeding type (Ozbey & Esen 2007),composition of hen diet (Cufadar et al, 2010, Felipe et al, 2010, Mohiti-Asli et al, 2012, Praes et al, 2014 and sex ratio (Ipek et al, 2004, Alsobayel & Albadry 2012, Narinc et al, 2013 in poultry species.…”

Caracterização dos componentes internos e qualidade dos ovos de perdiz brasileira (Rhynchotus rufescens) durante 28 dias de armazenamento

“…A criação racional da perdiz brasileira (Rhynchotus rufescens) tem ganhando notoriedade por sua fácil adaptação ao cativeiro e resultados produtivos promissores. Apesar de ser uma ave em processo de domesticação, apresenta bons índices de desempenho (Moro et al, 2000;Tholon & Queiroz, 2007), rendimento de carcaça (Moro et al, 2006;Queiroz et al, 2013) e adaptabilidade a novas dietas (Felipe et al, 2010;Moro et al, 2002;Nakage et al, 2002). Sua exploração zootécnica visa a produção de cortes cárneos exóticos, mas em tempos que se buscam fontes alternativas de proteína animal e ovos cada vez mais diferenciados no mercado, é importante que se explore a potencialidade dessa espécie para a produção de ovos.…”