|
|
|
| Registros recuperados: 99 | |
|
|
| Pitta,Christiano Santos Rocha; Soares,André Brugnara; Assmann,Tangriani Simioni; Adami,Paulo Fernando; Sartor,Laércio Ricardo; Migliorini,Francisco; Sollenberger,Lynn Elwood; Assmann,Alceu Luiz. |
| The objective of this work was to evaluate the influence of different grazing periods on beef animal production and on wheat forage and grain yield. The experiment was carried out in Pato Branco, PR, Brazil. Six grazing periods were evaluated (0, 21, 42, 63, 84, and 105 days) on dual-purpose wheat cultivar BRS Tarumã. Purunã steers, with average live weight of 162 kg and ten months of age, were kept under continuous grazing using a variable stocking rate, in order to maintain the established sward height of 25 cm. Greater increases in total animal gain (TAG) occurred with longer grazing periods. However, there was little increase after 63 days (490 kg ha-1), and TAG decreased from 552 to 448 kg ha-1 between 84 and 105 days. Grain yield decreased from 2,830... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; 'BRS Tarumã'; Forage mass; Nutritive value; Purunã steers; Weight gain. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011001000036 |
| |
|
|
| Almeida,Vitor Visintin Silva de; Silva,Robério Rodrigues; Queiroz,Augusto César de; Oliveira,Aline Cardoso; Silva,Fabiano Ferreira da; Abreu Filho,George; Lisboa,Mateus de Melo; Souza,Sinvaldo Oliveira de. |
| The objective of this study was to evaluate the economic returns of crossbred calves grazing on pastures formed by Urochloa brizantha fed crude glycerin as a supplement. Thirty-six crossbred calves with initial average weight of 301.5 kg were distributed in a completely randomized design with four treatments and nine replicates per treatment. The animals were maintained on rotational grazing production of Urochloa brizantha cv. Marandu. The tested treatments were 0.0, 3.33, 6.66 and 9.99% inclusion of crude glycerin in the total dry matter as a substitute for corn. The production of meat was not altered by the inclusion of glycerin in the diet. The inclusion of glycerin caused a reduction of up to 14.93% in the price of the concentrate. There was a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Biodiesel; Byproducts; Weight gain. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000700382 |
| |
|
| |
|
|
| Ortiz M.,R.; Valdivia F.,A.; Martínez R.,J.; Martínez de A.,A.. |
| The objective of this study was to evaluate the effect of clenbuterol (CB), a beta2-adrenergic agonist, as a growth and weight gain promoter in broilers. Effects of CB were assessed, mixing it in feed at 0.0, 0.21, 0.42 and 0.84ppm, and feeding during four weeks to four groups (n=75) of 28 day-old Arbor Acres chickens. The body weight (BW) and food intake at 0, 12, 20 and 28 days of the study were recorded. Also abdominal fat (AF) and total muscle proteins were measured. Results indicate that from day 20 until the last of the experimental period (56-day-old), efficacy of CB was evident to increase growth and decrease AF deposition rates (P<0.01), in a dose-response pattern, suggesting that CB has a profitable growth promoting effect in broiler chickens. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chick; Clembuterol; Muscle protein; Weight gain; Abdominal fat; Food conversion. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352000000300015 |
| |
|
|
| Assuena,V; Junqueira,OM; Duarte,KF; Laurentiz,AC; Filardi,RS; Sgavioli,S. |
| This experiment was carried out to evaluate the effects of the inclusion of different levels of phytase on broiler performance, bone densitometry, and phosphorus and nitrogen excretion. Nine hundred and sixty one-day old broilers, 50% males and 50% females, were distributed in a completely randomized experimental design into five treatments and six replicates 32 birds each. The treatments consisted of a control diet and four diets with the addition 25, 50, 75, and 100 g/ ton of phytase (250, 500, 750 and 1000 FTU of phytase/kg fed). Diets were formulated to contain equal nutritional levels, and considered the phytase product nutritional levels. In general, the addition of phytase resulted in a linear decrease in broiler performance. However, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone mineralization; Feed conversion ratio; Feed intake; Weight gain. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100005 |
| |
|
|
| Souza Júnior,Edmilson Lúcio de; Sousa,Wandrick Hauss de; Pimenta Filho,Edgard Cavalcanti; Gonzaga Neto,Severino; Cartaxo,Felipe Queiroga; Cezar,Marcílio Fontes; Cunha,Maria das Graças Gomes; Pereira Filho,José Morais. |
| The objective of this study was to evaluate the performance, qualitative, morphometric and quantitative carcass traits of Santa Inês lambs of different frame sizes finished in a feedlot. Twenty 120-day-old intact lambs with a 25.0±3.1 kg average body weight at the beginning of the experiment were used. Lambs received a diet containing 17% crude protein and 2.70 Mcal/kg dry matter. Frame size influenced performance and tissue composition in the carcasses of the lambs. Lambs with large frame sizes showed better carcass conformation compared with those of medium-sized frames. Frame size was found to have a significant effect on rump perimeter. Large-framed lambs showed higher compactness on the carcass index and carcass dressing area compared with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass conformation; Commercial cuts; Dry matter intake; Sheep; Tissue composition; Weight gain. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000400008 |
| |
|
| |
|
|
| Rigueira,Leandro César Milagres; Thomaz,Maria Cristina; Rigueira,Dalton César Milagres; Pascoal,Leonardo Augusto Fonseca; Amorim,Alessandro Borges; Budiño,Fábio Enrique Lemos. |
| The objective of this study was to evaluate the effect of diets supplemented with plasma and/or yeast extract on performance (daily weight gain [DWG], daily feed intake [DFI] and feed conversion [FC]) and intestinal morphology of piglets from 7 to 63 days of age. A total of 288 piglets aged 7 days and weighing 2.57±0.05 kg were studied. A randomized block design consisting of four experimental diets, six repetitions and 12 piglets per experimental unit was adopted. The pre-starter I (7 to 21 days), pre-starter II (22 to 35 days) and starter I (36 to 49 days) diets were supplemented as follows: control diet (CD): no plasma or yeast extract; plasma (PL) diet: addition of 6%, 4% and 2% plasma; yeast extract (YE) diet: addition of 6%, 4% and 2% yeast extract;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed conversion; Feed intake; Swine; Villi; Weight gain. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000700006 |
| |
|
|
| Carvalho Júnior,Aloísio Monteiro de; Pereira Filho,José Morais; Silva,Rayana de Medeiros; Silva,Aderbal Marcos de Azevêdo; Cezar,Marcílio Fontes. |
| The present study aimed to assess the effect of supplementation on the performance of F1 (Boer × females of no defined breed) goats finished in native pasture. The experiment was conducted at the Universidade Federal de Campina Grande, Patos Campus, Paraíba, Brazil, with twenty-four 120-day-old non-castrated F1 (Boer × NDB) male goats, with a 15.52 kg live weight (LW). Animals were distributed in four levels of supplementation (0.0; 0.5; 1.0; 1.5% of body) and six replicates. In order to perform the evaluation of dry matter availability, the herbaceous vegetation was divided into grass and herbaceous dicotyledon and evaluated at the beginning (5/28/2007), in the middle (7/9/2007) and at the end (8/6/2007) of the experiment. In the beginning of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caatinga; Consumption; Dicotyledons; Digestibility; Grass; Weight gain. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100032 |
| |
|
|
| Vaz,Ricardo Zambarda; Lobato,José Fernando Piva. |
| This study evaluated body development and reproductive performance of beef cows whose calves were submitted to early weaning (76 days of age), or conventional weaning (148 days of age). It was used 141 Braford cows that calved in 2004, 2005, and 2006 to evaluate weight at calving at 76 days, weight at calving at 148 days, weight at the beginning and end of the breeding season, variation of the average daily weight, body condition, pregnancy rate, and calving interval. Dams of calves weaned at 148 days of age showed daily weight gain higher body weight and better body condition at 148 days of age. The weights at the end of breeding season and average weight gain during the breeding season were higher in early weaning cows than in conventional cows.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body condition; Braford; Conventional weaning; Early weaning; Weight gain. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000500016 |
| |
|
|
| Santos,Ana Carolina Ferreira dos; Ludke,Maria do Carmo Mohaupt Marques; Ludke,Jorge Vitor; Santos,Jussiede Silva; Viapiana,Juliane Garlet; Rabello,Carlos Bôa-Viagem; Torres,Thaysa Rodrigues; Custódio,Lidiane Rosa. |
| ABSTRACT The objective of this study was to determine the energy value of pasta waste through a metabolism trial and determine the best level of its inclusion in broiler diets. In the metabolism trial, sixty 14-day-old birds were assigned to two treatments (control diet and a diet in which 30% was replaced by the byproduct) with six replicates and five birds per experimental unit. In the performance trial, 525 one-day-old chicks were assigned to treatments consisting of five levels of pasta waste (0, 100, 200, 300, and 400 g kg−1) in the diet, with seven replicates and 15 birds per experimental unit, in a completely randomized design. The phases of up to 7, 21, 35, and 42 days of age were evaluated. At the end, two broilers with average weight were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Birds; Gross margin; Pasta byproducts; Prime cuts; Weight gain. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100541 |
| |
|
| |
|
|
| Fonseca,Patrícia C. de F; Almeida,Eduardo A. de; Passini,Roberta. |
| In Tropical regions, the animal performance is often affected by climate conditions. This study aimed to evaluate covering materials in individual shelters, normally used to house dairy calves, and its influence on the calves physiology and performance. The design used was completely randomized, with a 2x3 factorial arrangement to compare the averages of 5% through the Tukey's test, i.e., both genders- and three types of covering in the shelters (Z - zinc; AC - asbestos cement; and WPAC - white-painted asbestos cement). Parameters evaluated included daily weight gain (DWG), dry matter intake (DMI), feed conversion (FC), rectal temperature (RT), and respiratory frequency (RF). Results showed significant differences (P < 0.05) among males (1.04kg/day) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Thermoregulation; Weight gain; Feed conversion. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600005 |
| |
|
|
| Alencar,Wanderson Martins; Restle,João; Missio,Regis Luis; Neiva,José Neuman Miranda; Miotto,Fabrícia Rocha Chaves; Freitas,Ithálo Barros de. |
| ABSTRACT The objective of this study was to evaluate the feeding behavior and feedlot productive performance of dairy-origin steers fed for 84 days ground pearl millet grain-based diets with 0, 120, 240, 360, and 480 g kg-1 of babassu mesocarp bran (BMB) and a standard diet based on ground corn. Thirty Holstein-Zebu steers with average initial body weight of 371.02±27 kg were used. The experimental design was completely randomized, with five replications. Dry matter intake showed better fit with the quadratic regression equation with the inclusion of BMB, reaching a maximum value in diets with 360 g of this by-product. There was no difference for dry matter intake between pearl millet- and corn-based diets. There was no difference in total digestible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: By-products; Dairy-origin; Digestibility; Dry matter intake; Weight gain. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015001200425 |
| |
|
|
| Molleta, José Luiz; Instituto Agronômico do Paraná; Torrecilhas, Juliana Akamine; Universidade Estadual de Maringá; Ornaghi, Mariana Garcia; Universidade Estadual de Maringá; Passetti, Rodrigo Augusto Cortês; Universidade Estadual de Maringá; Eiras, Carlos Emanuel; Universidade Estadual de Maringá; Prado, Ivanor Nunes do; Universidade Estadual de Maringá. |
| Current study evaluated the effect of different sexual groups and different concentrate levels in diets on animal performance, feed efficiency and carcass characteristics of bovines finished in feedlot. Ninety four bulls and 75 steers Purunã with average age 19 months at the beginning of the feedlot period were used. Animals were maintained in individual pens during 116 days and fed with a diet of corn silage and three concentrate levels (0.8, 1.1, and 1.4% of body weight). The concentrate was formulated with 25% soybean meal, 73% corn grain, 1.0% of a mineral mix and 1.0% limestone and adjusted at every 28 days. The interaction between sexual groups and concentrate levels was not significant for any of the studied variables. Bulls were more efficient than... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.00.00-2; 5.04.05.00-4; 5.04.03.02-8 efficiency; Feed intake; Sexual group; Weight gain. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/23736 |
| |
|
|
| CRUZ,VALDECY A.R.; GRUPIONI,NATALIA V.; MENDONÇA,GABRIELA G.; VENTURINI,GUILHERME C.; LEDUR,MONICA C.; PEIXOTO,JANE O.; MUNARI,DANISIO P.. |
| Abstract The objective of this study was to estimate variance components for performance and carcass traits in a paternal broiler line. The (co)variance components were estimated by the restricted maximum likelihood method applied to the animal model, including the fixed effect of group (sex and hatch) and additive genetic and residual as random effects. Estimated heritability for performance traits ranged from 0.09 to 0.42. The genetic correlations between traits ranged from -0.50 to 0.97. The heritability estimates of feed intake, weight gain, and feed conversion from 35 to 41 days of age were of low magnitude. The genetic correlations among them were favorable to genetic selection. These results suggest that moderate genetic gain can be obtained to the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass; Feed conversion; Genetic correlation; Heritability; Weight gain. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201006 |
| |
|
|
| Nunes,Cleujosí da Silva; Moraes,Gilberto; Fabrizzi,Fernando; Hackbarth,Araceli; Arbeláez-Rojas,Gustavo Alberto. |
| The objective of this work was to evaluate the effect of sustained swimming and dietary protein levels on growth and hematological responses of juvenile pacu (Piaractus mesopotamicus). A completely randomized design was used in a 3x2 factorial arrangement, with three levels of dietary protein (24, 28, and 32% crude protein), two rearing conditions (sustained swimming or motionless water), and 15 replicates. Fish were subjected to sustained swimming at the velocity of two body lengths per second (2 BL s-1), for 45 days. The level of dietary protein and the swimming conditions affected the performance, growth, and hematological profile of pacu. Swimming conditions influenced nutritional factors, increasing daily weight gain, specific growth rate, number of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piaractus mesopotamicus; Erythropoiesis; Exercise; Growth rate; Weight gain. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000600010 |
| |
|
| |
|
| |
|
|
| Castro,Filipe Alexandre Boscaro de; Ribeiro,Edson Luis de Azambuja; Mizubuti,Ivone Yurika; Silva,Leandro das Dores Ferreira da; Barbosa,Marco Aurélio Alves de Freitas; Sousa,Cícero Leandro de; Paiva,Fernando Henrique Pereira de; Koritiaki,Natália Albieri. |
| The objective of this study was to evaluate the influence of feeding energy levels during the last third of gestation and lactation on performance of ewes and lambs up to weaning. The experiment was carried out in the sheep raising sector of Universidade Estadual de Londrina (UEL), from August to December of 2007. Thirty-two adult lambs with 105 days of gestation, average live weight of 57.55 kg and average body condition scores of 3.42 were used in the beginning of the experiment. The animals were confined in collective pens, distributed randomly in three treatments: 2.4; 2.2 and 2.0 Mcal of metabolizable energy (ME)/kg of dry matter (DM). Feed supply was ad libitum during the last third of gestation and lactation. Weaning occurred at 70 days. Body... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body condition; Milk production; Mortality; Sheep; Weight gain. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400017 |
| |
| Registros recuperados: 99 | |
|
|
|
