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Felipe,L; Santos,EC; Tavian,AF; Góes,PAA; Moraes,VMB; Tonhati,H; Boleli,IC; Malheiros,EB; Barnabé,VH; Queiroz,SA. |
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... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg weight; Fertility; Nutrition; Semen quality; Shell thickness. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000100010 |
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Góes,PAA; Cavalcante,AK da S; Nichi,M; Perez,EG de A; Barnabe,RC; Barnabe,VH. |
Rheas (Rhea americana) belongs to the ratite group. Considering the commercial significance of this birds, some techniques, such as semen collection, were standardized. In this study, 107 male rheas (3 to 4 years of age) reared in commercial farms in the state of São Paulo, Brazil, were used. Semen was collected during the breeding and off-breeding seasons of 2001, 2002, and 2003. Bird hierarchical behavior was observed. Birds were restrained performed using a box and a black hood. Semen was collected by digital pressure on the base of the phallus, which size was measured, and the presence or absence of spiral shape was observed. Immediately after collection, semen samples were evaluated for volume, motility, sperm concentration, and morphology. In a... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Captive animals; Semen collection; Rhea. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000100009 |
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