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De Alencar F.H.H.,IFCE | Da Silva D.S.,PDIZ CCA UFPB | De Andrade A.P.,PDIZ CCA UFPB | Feitosa J.V.,UFCA
Revista Caatinga | Year: 2015

The objective of this Study was to evaluate the effect of organic fertilizer and cuts on the chemical composition and in vitro digestibility of the air pornunça biomass. The experimental design of randomized blocks in a split plot with four courts, two fertilization, and four replications. The cuts were made in February, June and October 2011 and February 2012. The fertilizer was with cattle and sheep manure, applied in May 2010 and March 2011 in the amount of 20 Mg ha-1. We evaluated the structural components of the shoot, such as leaf blade, petiole, branch and full (leaf blade and petiole more branch) of pornunça. The manure beef and lamb did not influence (P>0.05) the chemical composition of the structural components of the shoot. Differ-ences were noted between the cuts, except for dry matter (DM) of the leaf blade and the full component of ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF) and hemicellulose (HC). There was a significant (P<0.05) for the in vitro digestibility of the MS of the structural components in different cuts, with the highest digestibility for structural components in the cut made in February 2011. Lower crude protein was found in the petiole and components branch. The pornunça should be considered as an alternative food for ani-mals according to the chemical composition of the values presented in this study, with the leaf surface of the plant part that presents the best nutritional value. © 2015, Universidade Federal Rural do Semi-Arid. All rights reserved. Source


Filho J.J.,Federal University of Paraiba | da Silva J.H.V.,Brazilian National Council for Scientific and Technological Development | Silva C.T.,Federal University of Paraiba | Costa F.G.P.,PDIZ CCA UFPB | And 2 more authors.
Revista Brasileira de Zootecnia | Year: 2011

This study aimed to estimate the energy requirements for maintenance and gain of Japanese and European quails under growth housed in two rearing systems: floor pens and cages. To determine maintenance requirements, two experiments were conducted with birds housed in cages in environmental chambers (experiment 1) and in floor pens at room temperature conditions (experiment 2). The experimental design was completely randomized with four levels of feed supply (100, 75, 50 and 25%) and four repetitions. Energy requirements for maintenance were estimated by the comparative slaughter method through a feeding trial. In experiment 1, 64 Japanese and European quails per treatment were housed in cages of climatic chambers at 18, 24, and 28 °C, while in experiment 2, 352 quails per treatment were housed in floor pens at room temperature (26 °C). To estimate gain requirements, five slaughters were performed with quails receiving feed ad libitum and housed under controlled temperature of 18 °C (experiment 3). Prediction equations were obtained to estimate requirements for maintenance and gain of energy for the two genotypes of quails. The room temperature and breeding system affected the estimates of energy requirements for maintenance. The genotypes presented different estimates for maintenance and gain. Prediction models should be developed considering the room temperature and quails' genotypes. © 2011 Sociedade Brasileira de Zootecnia. Source


Filho J.J.,Federal University of Paraiba | da Silva J.H.V.,Brazilian National Council for Scientific and Technological Development | Costa F.G.P.,PDIZ CCA UFPB | Sakomura N.K.,Sao Paulo State University | And 2 more authors.
Revista Brasileira de Zootecnia | Year: 2011

The study was conducted to estimate requirements of energy and crude protein for maintenance, weight gain and egg production of Japanese quails in the period of 67 to 107 days of age. Two experiments were performed: one, to determine the requirements for maintenance of protein, and the other, for energy. Experiments were conducted in a completely randomized design with four dietary levels of offer and four replicates of six birds. The diets offered were: ad libitum (100%), 75%, 50%, and 25% consumption ad libitum (below maintenance). The methodology used to estimate the demand for maintenance was the comparative slaughter. For estimation of the requirement for weight gain, eight groups of 15 quails were reared separately, fed ad libitum and housed under 22 °C controlled temperature. From these poultry, three groups were slaughtered at 5, 10, 15, 20, 25, 30, 35 and 40 days of the trial. The requirement for egg production was obtained by taking the ratio of energy content, egg protein, efficiency of energy use and protein for egg production. Prediction equations that estimate maintenance requirement, weight gain and egg production in energy and crude protein of Japanese quail include: metabolizable energy (kcal/bird/day) = 92.34 *body weight 0.75 + 6.23 *weight gain + 4.19 *egg mass; crude protein (g/bird/day) = 6.71 *body weight 0.75 + 0.615 *weight gain + 0.258 *egg mass. © 2011 Sociedade Brasileira de Zootecnia. Source

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