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| Registros recuperados: 24 | |
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| Carvalho,João Sérgio Oliveira; Azevedo,Rafael Vieira de; Ramos,Ana Paula de Souza; Braga,Luís Gustavo Tavares. |
| This study was conducted to evaluate performance and body composition of tilapia (Oreochromis niloticus) fed diets containing byproducts aerial parts of cassava meal (Manihot esculenta), mesquite pod meal (Prosopis juliflora), cocoa meal (Theobroma cacao) and palm kernel cake (Elaeis guineensis) and to analyze the economic viability of the feed. A total of 1,350 juvenile males (100 g) were distributed in 15 cages (1 m³) in completely randomized design with five treatments (basal diet and four test diets) and three replicates. The following aspects were evaluated: final weight, total feed intake, total weight gain, feed conversion, specific growth rate, protein efficiency ratio and survival rate, dry matter, crude protein, fat and ash body, the average cost... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Economic evaluation; Feed alternative; Oreochromis niloticus; Productive performance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300002 |
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| Lazăr,R.; Solcan,C.; Creţu,C.; Lazăr,M.; Muntean,C.; Boişteanu,P.C.. |
| This research started from the premises of the existence of some possible relationships between indole and pineal peptide hormones and the somatic development, with participation of hypothalamic-pituitary complex. Experimental factors, which were the subject of the present paper, influenced the dynamics of corporal mass and fodder consumption, leading to the occurrence of some important structural modifications at the level of pineal gland. The exposure of the individuals to continuous light (photic pinealectomy) produces increases in corporal mass, showing the involvement of the pineal gland in neuro-endocrine-metabolic reactions, which contributes to the maintenance of homeostatic balance, including somatic ones. Biological material was represented by a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Turkey; Pineal gland; Productive performance. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000300763 |
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| Rivera,Diego Fernando Remolina; Bertechini,Antonio Gilberto; Oliveira,Tiago Ferreira Birro; Castro,Solange de Faria; Oliveira,Henrique Braga; Bobadilla-Mendez,Manuel Fernando. |
| The effect of cholecalciferol (D3) and 25-hydroxycholecalciferol (25-OHD3) as isolated or associated sources of vitamin D (100%-0%, 75%-25%, 50%-50%, 25%-75%, 0%-100%) on the productive performance, egg quality, and bone characteristics was evaluated in white egg-laying hens fed two levels of calcium (Ca) and phosphorus (P) in the basal diet (BD) (BD1 = 0.38% Ca - 0.36% available P and BD2 = 3.2% Ca - 0.30% available P). Nine hundred and sixty Dekalb White hens (24 weeks old) were distributed into 80 cages, under a completely randomized factorial design for 16 weeks. The use of associated sources of vitamin D reduced the feed intake and feed conversion ratio, as well as BD1, which also increased the egg production and egg mass. The association of vitamin D... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitamin sources; Productive performance; Eggshell quality; Bone characteristics. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000600006 |
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| Zuanon,Jener Alexandre Sampaio; Salaro,Ana Lúcia; Moraes,Sofia Simões Silveira; Alves,Leandro Moreno de Oliveira; Balbino,Eric Márcio; Araújo,Erick Siqueira. |
| Dietary protein and energy requirements of juvenile freshwater angelfish (Pterophyllum scalare) were evaluated. A 3 × 2 factorial design was used, with three dietary crude protein levels being tested (26, 30, and 34% of CP) combined with two digestible energy levels (3,100 and 3,300 kcal DE/kg of diet) in three replicates. Juveniles averaging 2.33 ± 0.26 g were reared in a 25L-aquarium with controlled temperature (26 ± 1ºC), biological filter and stocking density of six fish/aquarium. Fish were fed ad libitum at 09:00 a.m., 2:00 p.m. and 4:30 p.m. The following performance parameters were evaluated: final weight, final length, weight gain, feed intake, feed conversion ratio, specific growth rate, protein efficiency ratio and condition factor. Fish fed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth; Ornamental fish; Productive performance; Protein/energy ratio; Pterophyllum scalare. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000600003 |
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| Fernandes,JIM; Murakami,AE; Sakamoto,MI; Souza,LMG; Malaguido,A; Martins,EN. |
| This trial aimed at evaluating the effect of organic trace mineral supplementation of commercial layer diets on productive performance and egg quality. One-hundred-ninety-two Hy Line W36 white 69-w-old layers were distributed into a completely randomized design with three treatments, and eight replicates, with eight birds each. Treatments consisted of a basal diet supplemented with inorganic trace minerals (R1), and two others experimental diets containing 0.250 ppm (R2) and 0.500 ppm (R3) of an organic source of zinc, manganese, and selenium. Feed intake (g/bird/day), feed conversion ratio (kg/dozen egg and kg/kg egg), egg weight (g), egg production (%), thin and cracked eggshells (%), specific gravity (g/mL), Haugh Units, total egg solids (%), yolk... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg quality; Organic minerals; Productive performance. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000100009 |
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| Sandoval-Contreras,Héctor Augusto; Ribeiro-Barzan,Renan; Sandoval-Contreras,Mario; Rodrigues-Brito,Osmar. |
| Abstract The aim of this research was to evaluate two traditional N sources (urea and ammonium sulfate) and an alternative one (sulfamoo) with increasing rates (0, 40, 80, 120 and 160 kg N ha-1, respectively) affecting aspects of upland rice crop cv. IAPAR 117. The experiment was carried out in greenhouse conditions, using a completely randomized design in 3x4 factorial scheme, with four replicates. It was evaluated the number of tillers (NT), plant mean height (PMH), dry matter of shoots (DMS), crop yield/mass of filled grains (MFG), content of N-DMS, agronomic efficiency of nitrogen (AE), mass of 100 filled grains (M100FG) and grain harvest index (GHI). The nitrogen rates application as ammonium sulfate resulted in a greater increasing of NT, DMS, MFG... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Absorption; Fertilizer formulations; Plant growth parameters; Productive performance; Upland. |
| Ano: 2017 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000400558 |
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| Sebastião,F. A; Nomura,D; Sakabe,R; Pilarski,F. |
| Columnaris disease is one of the main causes of mortality in tilapia rearing and is responsible for large economic losses worldwide. Hematology is a tool that makes it possible to study organisms' physiological responses to pathogens. It may assist in making diagnoses and prognoses on diseases in fish populations. The hematological variables of nile tilapia were studied in specimens with a clinical diagnosis of columnaris disease and in specimens that were disease-free. The total erythrocyte count, hemoglobin rate, hematocrit percentage, mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), mean corpuscular volume (MCV), organic defense blood cell percentages (leukocytes and thrombocytes) and hepatosomatic and splenosomatic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Bacteria; Hematology; Productive performance. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100036 |
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| Gutiérrez Hernández, Sandra. |
| La lisina (lis) y treonina (tre) son el primer y segundo aminoácidos limitantes en las dietas de cerdos para la síntesis de proteína. El objetivo del trabajo fue evaluar el efecto de diferentes niveles de lisina y treonina en dietas sorgo-pasta de soya para cerdos en crecimiento, sobre el comportamiento productivo, características de la canal y la concentración de urea en plasma. En el experimento 1 los tratamientos (T) fueron: T1, 0.83 lis+ 0.52 tre; T2, 0.83 lis+ 0.62 tre; T3, 0.93 lis+ 0.52 tre; T4, 0.93 lis+ 0.62 tre). Se utilizaron 36 cerdos (19 hembras y 17 machos castrados) híbridos (Landrace×Yorkshire×Pietrain) con peso promedio inicial de 27,65 ± 5,65 kg durante cuatro semanas, distribuidos en un diseño completamente al azar con arreglo factorial... |
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Palavras-chave: Lisina; Treonina; Comportamiento productivo; Características de la canal; Lysine; Threonine; Productive performance; Carcass characteristics; Ganadería. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2288 |
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| Silva,Daniel Fernandes da; Pio,Rafael; Micheli,Maurizio; Soares,Joyce Dória Rodrigues; Martins,Adalvan Daniel; Nogueira,Paulyene Vieira. |
| Abstract The genus Physalis L. has great importance in the framework of Brazilian biodiversity especially in the Amazon region. The use of colored shading nets allow manipulating the light spectrum, and thus supplying the appropriate quantity and quality of light for each species and maximizing production. The purpose of this study was to evaluate the effects of shade nets on fruit production and qualitative parameters of four species belonging to genus Physalis. The experimental design was random blocks with a 4 x 5 factorial scheme, four species of Physalis (P. peruviana, P. pubescens, P. minima and P. ixocarpa) and four colors of shade nets (white, blue, red and black), besides the control treatment under full sun exposure. Fruits were collected weekly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physalis L.; Light spectrum; Productive performance. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000200704 |
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| Torres,Cibele Araujo; Vieira,Sergio Luiz; Reis,Renata Nuernberg; Ferreira,André Klein; Silva,Pedro Xavier da; Furtado,Fulvio Vinicius Foch. |
| An experiment was carried out with the objective of evaluating the addition of 25-hydroxycholecalciferol (25(OH) D3) in diets of broiler breeder hens. The experiment used Cobb 500 broiler breeder hens and was allotted to a complete randomized design with four treatments and eight replications of twenty females and two males each. The treatments consisted of vitamin premixes with 2,000 and 3,400 IU/kg diet vitamin D3 as the only source of vitamin or 2,000 IU D3 plus 35 or 69 mg/t of 25(OH) D3. Results of this experiment indicated that 25(OH) D3 had no significant effect on egg production parameters from 32 to 67 weeks. The supplementation of 25(OH) D3 resulted in better quality egg shells evaluated by the specific gravity at 60 weeks of age, regardless of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 25-hydroxycholecalciferol; Breeder hens; Hatchability; Productive performance; Vitamin D. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000700018 |
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| Itza-Ortiz,MF; Peraza-Mercado,G; Castillo-Castillo,Y; Rodriguez-Alarcon,CA; Vital-Garcia,C; Jaramillo-Lopez,E; Carrera-Chavez,JM. |
| ABSTRACT Poultry farmers in the southeastern of Mexico consider that the productivity of the hens that comes from rearing on floor has a higher productive performance than reared hens in cages, mainly due to higher percentage of egg laying and lower mortality. The aim of this study was to evaluate the productive performance of the laying hen in relation to the type of rearing. A total of 79680 pullets Bovans White of 17 weeks of age were housed in cages with five pullets cage-1 (405 cm2pullet-1). They were divided in two treatments according to their type of rearing (floor vs cage) with four replicates. The study period was from week 20 to week 40 of age. The variables evaluated were daily (%) and cumulative mortality (%), egg production (%), egg weight... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Feed intake; Productive performance; Mortality; Egg production; Rearing method. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300543 |
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| Lourençoni,Dian; Yanagi Junior,Tadayuki; Abreu,Paulo G. de; Campos,Alessandro T.; Yanagi,Silvia de N. M.. |
| ABSTRACT Broiler chickens are classified as homoeothermic animals and require a production environment within well-defined thermal comfort intervals. Therefore, the development of algorithms (mathematical models) to control the environment that can be embedded in microcontrollers becomes necessary. Hence, this work aimed to develop a fuzzy model for predicting the productive performance of broiler chickens as a function of the thermal environment during the various breeding phases. The Mamdani inference and defuzzification methods were used, by means of the gravity center, to develop the fuzzy model. Two hundred and forty-three rules with weighting factors of 1.0 each were elaborated. Three commercial warehouses (conventional system, wind tunnel with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry farming; Productive performance; Artificial intelligence; Fuzzy logic. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000100001 |
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| Silva,Mônica Calixto da; Vaz,Roberta Gomes Marçal Vieira; Rodrigues,Kênia Ferreira; Stringhini,José Henrique; Sousa,Luciano Fernandes; Fonseca,Flávia Luzia Rodrigues; Augusto,Wescley Faccini; Bezerra,Latóya de Sousa. |
| ABSTRACT We evaluated the technical feasibility of purified glycerin inclusion in balanced diets of broiler chickens treated from 1 to 42 days of age. A total of 240 broiler chickens were distributed in a completely randomized design into four treatments (0, 2, 4, and 6% purified glycerin inclusion), with six replicates of 10 broilers each. We evaluated productive performance (at 7, 21, and 42 days), edible viscera (heart, liver, and gizzard), carcass yield and cuts, color, chemical and physical composition, as well as protein and fat deposition in the breast muscle. Dietary inclusion of purified glycerin reduced feed conversion and increased feed intake, weight gain, and weight at seven days. From 1 to 21 days, there was a decrease in feed conversion and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiesel; Energetic feedstuff; Growth curve; Productive performance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100515 |
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| Sussel, Fábio Rosa; Viegas, Elisabete Maria Macedo; Evangelista, Mariana Machado; Gonçalves, Giovani Sampaio; Salles, Fernando André; Gonçalves, Ligia Uribe. |
| The aim of this study was to evaluate the effect of replacing animal protein with vegetable protein sources on the productive performance of Astyanax altiparanae (lambari-do-rabo-amarelo). Five experimental diets were formulated with increasing replacement levels of animal protein by vegetable protein. A total of 9000 individuals (initial mean weight 1.18 ± 0.12 g, initial mean length 2.1 ± 0.3 cm) were distributed in 20 net cages (1 m3) with a density of 450 ind. m-3. Cages were randomly placed in a pond (180 m2, 1.5 m deep, 10% water renewal per day). After 63 days of cultivation, total count and individual biometrics from 20% of each experimental unit were taken. Mean weight, total length, survival, feed conversion, biomass weight gain and proximate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Productive performance; Nutrition; Fat deposition; Intensive production. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/23836 |
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| Registros recuperados: 24 | |
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