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| Registros recuperados: 34 | |
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| Pérez Velásquez,Juan C.; Souza Jr.,Cláudio Lopes de; Narro,Luis A.; Pandey,Shivaji; De León,Carlos. |
| Breeding programs for acid-soil tolerance are desirable as a relatively inexpensive and permanent way for increasing maize (Zea mays L.) yield on these soils. Our objective was to compare the genetic effects controlling the expression of maize traits in acid and non-acid soils. Seven related and one unrelated inbred lines, with different levels of tolerance to acid soil, and their F1, F2, BC1, and BC2 generations were evaluated in four acid and two non-acid soils. Estimates of additive, dominance, and epistatic effects were computed for grain yield, plant height, days to mid-silk, and prolificacy, using the generation means analysis procedure. For all traits the major part of the variation was accounted for by additive and dominance effects, with dominance... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acid soils; Additive; Dominant; Epistatic effects; Generation analysis. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100017 |
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| Pedroso,André de Faria; Nussio,Luiz Gustavo; Barioni Júnior,Waldomiro; Rodrigues,Armando de Andrade; Loures,Daniele Rebouças Santana; Campos,Fabio de; Ribeiro,José Leonardo; Mari,Lucas José; Zopollatto,Maity; Junqueira,Marta; Schmidt,Patrick; Paziani,Solidete de Fátima; Horii,Jorge. |
| The objective of this work was to evaluate the performance of heifers fed sugarcane silages produced with and without additives. Thirty-two Holstein heifers were randomly assigned, in a block design, to evaluate rations (46% silage; 54% concentrate; 12% crude protein) containing silages treated with (fresh basis) urea (0.5%), sodium benzoate (0.1%) or Lactobacillus buchneri (3.64x10(5) cfu g-1 ). Inoculation with L. buchneri improved daily gain (1.24 vs. 0.94 kg day-1 ), and the addition of benzoate resulted in better feed conversion (7.6 vs. 9.4 kg of dry matter per kg of live weight), in relation to the untreated silage (control). Treatments did not affect dry matter intake (mean of 2.19% of live weight). Rations containing silages treated with benzoate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Inoculant; Nutritional value; Weight gain. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000400015 |
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| Spehar,Carlos Roberto. |
| High available aluminium and low levels of calcium below the ploughed zone of the soil are limiting factors for agricultural sustainability in the Brazilian Cerrados (Savannahs). The mineral stresses compound with dry spells effect by preventing deep root growth of cultivated plants and causes yield instability. The mode of inheritance for grain yield and mineral absorption ratio of a diallel cross in soybeans [Glycine max (L.) Merrill] grown in high and low Al areas was identified. Differences among the genotypes for grain yield were more evident in the high Al, by grouping tolerant and non-tolerant genotypes for their respective arrays in the hybrids. A large proportion of genetic variance was additive for grain yield and mineral absorption ratio in both... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aluminium; Calcium; Cultivar; Additive; Dominance; Breeding. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999000600011 |
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| Trindade,BS; Lima,CAR; Cardoso,VS; Direito,GM; Machado,NJB; Souza,MMS; Curvello,FA; Corrêa,GSS. |
| ABSTRACT The objective of this study was to evaluate the inclusion of cell wall of Saccharomyces cerevisiae (CWSc) and piperine in broiler rations and their effects on performance, carcass traits, blood parameters, ileal microbiota and nutrient digestibility. A randomized block design with five treatments and six replicates of 10 birds was used, totaling 300 chickens. The treatments consisted of: control ration (CR); CR + avilamycin (10 mg / kg); CR + CWSc (2.0 g / kg); CR + piperine (60 mg / kg); and CR + CWSc (2.0 g / kg) + piperine (60 mg / kg). The use of isolated piperine resulted in greater weight gain from 9 to 40 days of age (2505g). The additives CWSc and piperine conjugates influenced the lower coliform count in the ceca (4.45 CFU / g) and caused... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Coliforms; Enzymes; Hematocrit. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300322 |
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| Machado,CA; Fernandes,EA; Carvalho,LSS; Litz,FH; Gotardo,LRM; Braga,PFS. |
| ABSTRACT This study aimed to evaluate the effect of maltodextrin on performance of chicks passed through four fasting periods. A completely randomized design was performed, consisting of three treatments (1 - control, 2 - 4% saccharose; 3-4% maltodextrin 20) and four fasting periods after hatching (0, 12, 24 and 36 hours) with four replications, totaling 1920 birds of both sexes. The studied variables were: water intake in the first 12 hours, average food intake, average body weight and real feed conversion. Data was submitted to analysis of variance and means were compared with each other by Dunnett test at 5% significance. The use of additives and imposing of different fasting periods did not influence the performance at 42 days old. Therefore, fasted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Broiler; Productivity. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000500009 |
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| Ítavo,Camila Celeste Brandão Ferreira; Graça Morais,Maria da; Ramos,Cristhian Liber; Ítavo,Luís Carlos Vinhas; Tomich,Thierry Ribeiro; Silva,Jonilson Araújo da. |
| The objective of this paper is to assess the effects of the inclusion of different levels of green propolis extract in the diet of lambs in feedlot on ingestive behavior, nutrients digestibility, physiological parameters and performance. Eight lambs were distributed in double Latin Square with four treatments, corresponding to the inclusion levels (4, 8, 12, 16 mL) of green propolis ethanolic extract (30 g of ground crude propolis was infused in a 100-mL hydroalcoholic solution, 700 mL/L). The diets were composed of Brachiaria brizantha cv. MG5 hay and a commercial concentrate (roughage:concentrate ratio was 50:50) in a dry matter basis. No effect was observed on dry matter (31.2 g/kg of BW), crude protein, ether extract, neutral detergent fiber,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Apis mellifera; Flavonoids; Ionophore. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000900021 |
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| Ribeiro,Marinaldo Divino; Pereira,José Carlos; Queiroz,Augusto César de; Cecon,Paulo Roberto; Detmann,Edenio; Azevêdo,José Augusto Gomes. |
| The objective of this study was to evaluate the effect of the addition of acidifiers to milk, milk replacer or post-weaning concentrate on the performance and health status of weaning and post-weaning calves. Three experiments were carried out, in the first experiment 62 Holstein × Zebu crossbred calves (males and females), reared from birth to 60 days of age, were distributed and fed milk with or without acidifier. From the third day, the calves were suckled (5L of milk/d) for 56 days, split into two meals. The acidifier was added to milk at the time of feeding. From the second week of calf's age a starter diet (18% of CP) was also offer. In second experiment, the same animals from first experiment, but from 61 to 120 days of age were distributed and fed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Average daily gain; Nursing phase. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000500024 |
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| Moretti,Matheus Henrique; Resende,Flávio Dutra de; Siqueira,Gustavo Rezende; Roth,Anna Paula de Toledo Piza; Custódio,Letícia; Roth,Marcella de Toledo Piza; Campos,Wellington da Costa de; Ferreira,Luiz Henrique. |
| The objective of this study was to verify the effect of low-intake supplementation on performance of Nellore young bulls kept on Marandu grass pasture. The experiment was divided in two periods: the dry and rainy seasons. Treatments during the dry period were composed of mineral salt with urea and mineral supplement enriched with true protein and additive. In the rainy period treatments were mineral salt and enriched mineral supplement only. Pastures were evaluated and animals were weighed in both evaluation phases. The variables studied were evaluated in a completely randomized design in a split-plot arrangement, where plots were treatments and subplots were the periods within each phase, considering the types of supplementation as treatments. During the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Animal performance; Dry season; Rainy season; Supplement. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600008 |
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| Amaral,Nikolas de Oliveira; Fialho,Elias Tadeu; Cantarelli,Vinícius de Souza; Zangeronimo,Márcio Gilberto; Rodrigues,Paulo Borges; Girão,Lúcio Vilela Carneiro. |
| An experiment was carried out to evaluate the performance, carcass composition, cutting yields and economic viability of 5 or 10 ppm of ractopamine hydrochloride (RAC) in diets for barrows and gilts from 94 to 130 kg. Sixty commercial hybrid pigs within a gender, were individually kept in pens and assigned a randomized experimental block design, in a 3 × 2 factorial arrangement, with three levels of RAC (0; 5 and 10 ppm) and two sexs (barrows and gilts). There were no RAC × sex interactions for all evaluated parameters. There were significant improvements for the groups of RAC-treated on final weight, average daily gain (ADG) and feed:gain (F:G). The RAC, independent from the level (5 or 10 ppm), improved the F:G, but did not influence the average feed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Carcass modifier; Lean meat; Nutrition; Performance. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000800013 |
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| Nunes,Jaqueline Oliveira; Bertechini,Antonio Gilberto; Brito,Jerônimo Ávito Gonçalves de; Makiyama,Letícia; Mesquita,Fabrício Rivelli; Nishio,Carina Megumi. |
| This experiment was conducted with the objective of evaluating cysteamine (CS) supplementation in broiler chick diets with different energy density patterns. A total of 980 chicks of the Cobb 500 strain at one day of age were allocated into 28 plots. A completely randomized design in a 2 × 2 factorial arrangement, with 7 replications, was adopted. The factors under study were the supplementation (or absence) of cysteamine (60 mg/kg and 80 mg/kg of feed in the starter and growth/finishing phases, respectively) and two patterns of apparent metabolizable energy corrected by nitrogen balance (AMEn) in the diets. The energy levels (Mcal/kg of feed) practiced in pattern 1 were 3.00; 3.10; and 3.20, and for pattern 2, they were 3.05; 3.20; and 3.30 in the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Additive; Nutrition; Poultry meat production. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000800022 |
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| Souza,Evelar de Oliveira; Haese,Douglas; Kill,João Luís; Haddade,Ismail Ramalho; Lacerda,Elcio das Graça; Saraiva,Alysson; Silva,Francisco Carlos de Oliveira; Sobreiro,Rodrigo Pereira. |
| In order evaluate digestible lysine levels in diets supplemented with 20 ppm of ractopamine on the performance and carcass traits, 64 barrows with high genetic potential at finishing phase were allotted in a completely randomized block design with four digestible lysine levels (0.80, 0.90, 1.00, and 1.10%), eight replicates and two pigs per experimental unit. Initial body weight and pigs' kinship were used as criteria in the blocks formation. Diets were mainly composed of corn and soybean meal supplemented with minerals, vitamins and amino acids to meet pigs' nutritional requirements at the finishing phase, except for digestible lysine. No effect of digestible lysine levels was observed in animal performance. The digestible lysine intake increased linearly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Amino acid; Carcass; Diet; Meat. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001000018 |
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| Aguiar,Sílvia Cristina de; Paula,Eduardo Marostegan de; Yoshimura,Emerson Henri; Santos,Wallacy Barbacena Rosa dos; Machado,Erica; Valero,Maribel Velandia; Santos,Geraldo Tadeu dos; Zeoula,Lucia Maria. |
| Four rumen-cannulated primiparous lactating cows were studied in a 4 × 4 Latin square design experiment to evaluate the effects of propolis-based products (PBP) with different concentrations of propolis and alcohol levels on total digestibility, (TD), ruminal digestibility (RD), intestinal digestibility (ID), pH, ruminal ammonia-nitrogen production (NH3-N), rumen microbial synthesis, and blood parameters. The feed consisted of 591.9 g/kg corn silage and 408.1 g/kg concentrate (dry matter [DM] basis), and treatments differed with regard to the inclusion (via ruminal cannula) or exclusion of PBP as follows: control (without the PBP), PBP B1 (3.81 mg of phenolic compounds/kg of ingested DM), PBP C1 (3.27 mg of phenolic compounds/kg of ingested DM), and PBP C3... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Ammonia nitrogen; Flavonoids; Phenolic acids; Ruminants. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000400197 |
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| Freccia,André; Sousa,Sília Maria de Negreiros; Meurer,Fábio; Butzge,Arno Juliano; Mewes,Juliana Kasper; Bombardelli,Robie Allan. |
| This study evaluated the effect of feed supplementation (at doses of 0, 50, 100, 150, and 200 mg/kg) with SALUTO®, a microencapsulated blend of essential oils including carvacrol, cinnamaldehyde, 1,8-cineol, and pepper oleoresin, in Nile tilapia (Oreochromis niloticus) broodstock on reproductive and growth parameters during the initial phase of rearing. The growth parameters, somatic indexes and gonadal and hepatic parameters were analyzed. Quantitative parameters of growth, ovary fat and crude protein were not affected by supplementation of the additive. However, an increase in crude protein in the female liver was observed in correlation with increased essential oil levels. The female hepatosomatic index was also correlated with supplementation of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Fish nutrition; Growth promoter; Hepatosomatic index. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000100001 |
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| Silva,Jacianelly Karla da; Oliveira,Juliana Silva de; Medeiros,Ariosvalo Nunes de; Santos,Edson Mauro; Magalhães,Tamires da Silva; Ramos,Alenice Ozino; Bezerra,Higor Fábio Carvalho. |
| The objective of this study was to evaluate the use of wheat bran as an additive in elephant-grass silage on intake and digestibility of the nutrients, ingestive behavior, and yield and chemical composition of milk. Eight goats with 45 days of lactation were distributed in a (4 × 4) Latin square design.The treatments consisted of corn silage (CS), elephant-grass silage without wheat bran (EGS), elephant-grass silage with 10% wheat bran (EGS+10%WB), and elephant-grass silage with 20% wheat bran (EGS+20% WB). There was no difference in dry matter (DM) intake between diets EGS and CS in g d−1. However, the animals fed EGS+10%WB had lower DM and organic matter (OM) intakes than the animals fed CS in g kg−1 d−1 of body weight. There were lower non-fiber... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Caprine; Ethology; Milk; Milk composition; Nutritive value. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100618 |
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| Sanches,Josilene Figueiredo; Kiefer,Charles; Carrijo,Alfredo Sampaio; Moura,Mariana Souza de; Silva,Elizangela Alves da; Santos,Alexandre Pereira dos. |
| The objective of this study was to evaluate performance, quantitative characteristics of carcass, and visceral responses of barrows maintained on heat stress enviroment and fed diets supplemented with ractopamine. It was used 48 animals with initial weight of 67.3 ± 3.8 kg, distributed in a randomized block design with four levels of ractopamine (0, 5, 10 and 20 mg/kg), each one with six replicates with two animals each. The experimental period lasted 28 days. Air temperature was 31.8 ± 2.0ºC, air humidity was 72.6 ± 10.2% and BGHI was 82.7 ± 2.8. Daily feed intake was not affect by the levels of ractopamine but they improved feed conversion and increased daily weight gain and final weight of the animals. The carcass quantitative characteristics were not... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Additive; Carcass; Performance; Thermal environment. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000700019 |
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| Fascina,Vitor Barbosa; Sartori,José Roberto; Gonzales,Elisabeth; Carvalho,Fabyola Barros de; Souza,Ivan Mailinch Gonçalves Pereira de; Polycarpo,Gustavo do Valle; Stradiotti,Ana Cristina; Pelícia,Vanessa Cristina. |
| The experiment evaluated the influence of isolated or associated phytogenic additives (PA) and organic acids (OA) on nutrient digestibility, performance and carcass characteristics of broiler chickens. Two experiments were conducted in a completely randomized design with a 2 × 2 + 1 factorial arrangement of treatments (with or without PA × with or without OA + antibiotic performance enhancer and anticoccidial). In the first experiment, two metabolic tests were conducted to determine the metabolizability coefficients of the nutrients of starter and growth diets. In the second experiment, 2520 one-day-old chicks were housed in 40 experimental units to evaluate the performance and carcass characteristics. The phytogenic additives and organic acids, isolated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acidifier; Additive; Antibiotics; Herbal extract; Metabolism; Sanitary challenge. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001000008 |
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| Cantarelli,Vinícius de Souza; Fialho,Elias Tadeu; Almeida,Erin Caperuto de; Zangeronimo,Márcio Gilberto; Rodrigues,Paulo Borges; Freitas,Rilke Tadeu Fonseca de. |
| Supplementation of 5 ppm of ractopamine, associated or not to feed restriction in diets with a high total lysine content (1.04%) was evaluated on performance and nitrogen balance. In experiment 1, 60 hybrid castrated male swine (76.2 ± 2.3 kg) were housed in pairs according to a randomized complete block design in a factorial treatment arrangement (2 ×2 + 1) with or without ractopamine supplementation, two forms of feeding, ad libitum and feed restriction with 1.04% lysine, and an additional treatment (control), with ad libitum feed without ractopamine with 0.8% lysine, amounting to five treatments and six replications. The final live weight, daily weight gain, daily feed intake and feed conversion for 28 days were evaluated. There were improvements in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Carcass modify; Fed restricted; Nutrition. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001200012 |
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| Dias,Elyane Cristina Borges; Cândido,Magno José Duarte; Furtado,Rafael Nogueira; Pompeu,Roberto Claúdio Fernandes Franco; Silva,Leane Veras da. |
| ABSTRACT The objective was to evaluate the intake, nutrient digestibility and nitrogen balance in sheep fed diets containing elephant grass (Pennisetum purpureum Schum) silage containing 0; 7; 14 and 21% cottonseed cake. Twenty Morada Nova sheep were used in a completely randomized design with four treatments and five replicates. The diets were isoproteic, isoenergetic and isofibrous. There was no effect of cottonseed cake levels on nutrient intake and digestibility coefficient of ether extract. The digestibility coefficients of dry matter, organic matter, crude protein, total carbohydrates and non-fiber carbohydrates presented a linear reduction with the levels of cottonseed cake varying from, respectively, 537.97 to 421.21; 566.54 to 446.42; 595, 38 to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Digestibility coefficient; Intake; Nitrogen balance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000200321 |
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| Bernardes,Thiago Fernandes; Reis,Ricardo Andrade; Moreira,Andréia Luciane. |
| High-wet roughages with low content of soluble carbohydrates, such as tropical grasses, should be inappropriate for producing silages of adequate quality. This study aimed to evaluate the fermentative and microbiological profiles of Marandu-grass ensilaged with pelleted citric pulp (PCP). Brachiaria brizantha (Hochst ex. A. Rich) Stapf cv. Marandu with 58 days of vegetative growth was harvested for producing experimental silages in PVC silos provided with Bünsen valves and density capacity of 900 kg m-3. Treatments were three PCP levels (0, 50 and 100 g kg-1 of fresh forage) and seven times (1, 4, 7, 14, 21, 28 and 56 days) after sealing. PCP inclusion increased soluble carbohydrate concentrations by 15 to 20% and reduced pH (5.3 to 4.2) and N-NH3 levels... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Bacteria; Fermentation; Tropical grass; Silage. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000300003 |
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| Registros recuperados: 34 | |
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