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Obstruction of drippers as a result of application of moisturized whitewash in irrigation water REA
Barboza Júnior,Cícero R. A.; Lelis Neto,João A.; Hartwig,Marcelo P.; Barros,Allan C.; Coelho,Rubens D..
Plug dynamics of non compensate drip tubes were evaluated, by the precipitation of moisturized whitewash [Ca(OH)2], which is used in the fertigation for the bulb pH control of the trademarks Azud, Amanco, Naandan, Netafim, Petroisa, Queen Gil, with flow rate varying between 0.4 to 3.0 L h-1 usually used in the country. For this matter, increasing doses of Ca(OH)² were applied in the irrigation water, from 0.01 g L-1 to 1.84 g L-1. The flow rate of each drip tube was measured in intervals of time initially of 7 days, later of 15 days of system operation, totaling a time of 100 days of operation, corresponding to nine applications or 432 hours. The coefficient of variation (CV), and relative rate flow (Qr) were evaluated. The results pointed differences...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Drip tube; Clogging evaluation; Hydrated lime.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000500006
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Sugar cane treated with calcium hydroxide in diet for cattle: intake, digestibility of nutrients and ingestive behaviour R. Bras. Zootec.
Dias,Alexandre Menezes; Ítavo,Luís Carlos Vinhas; Damasceno,Julio Cesar; Santos,Geraldo Tadeu dos; Ítavo,Camila Celeste Brandão Ferreira; Silva,Fabiano Ferreira da; Nogueira,Ériklis; Soares,Cláudia Muniz.
The objective of this work was to evaluate, in bovines, the intake and apparent digestibility of nutrients, ingestive behaviour and content of total digestible nutrients (TDN) of diets based on sugar cane treated with calcium hydroxide. It was used four cows with average body weight of 412.06 kg ± 37.3 kg. The study included inclusion of calcium hydroxide at the doses 0, 8, 16 and 24 g/kg of sugar cane in natural matter basis fed in diets with 65% of roughage and 35% on concentrate, based on dry matter (DM). It was used a 4 × 4 Latin square experimental design with four treatments and four periods. Calcium hydroxide doses affected nutrient intake: DM intake was 7.88 kg/day at the dose of 14.99 g of calcium hydroxide, organic matter (OM) intake was 6.75...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alkaline hydrolysis; Chemical treatment; Hydrated lime; Ruminant nutrition.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000800025
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Ocorrência e controle de lesmas do gênero Omalonyx (Gastropoda, Succineidae), pragas de capim-elefante Pennisetum purpureum (Poaceae) em Rio Preto da Eva, Amazonas. Repositório Alice
GARCIA, M. V. B.; ARRUDA, J. O.; PIMPÃO, D. M.; GARCIA, T. B..
Lesmas do gênero Omalonyx d'Orbigny, 1837 são hermafroditas, herbívoras, de distribuição neotropical e vivem em plantas aquáticas, nas demais vegetações adjacentes e em solo úmido próximo a ambientes de água doce. No presente trabalho reporta-se a ocorrência atípica de O. pattersonae Tillier, 1981 e de Omalonyx sp. em área de terra firme, distante de ambiente aquático.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Moluscos; Controle; Cal hidratada; Mollusks; Hydrated lime; Amazônia.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/919426
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Characteristics of forage and feeding behavior of Nellore heifers fed hydrolyzed sugarcane R. Bras. Zootec.
Missio,Regis Luis; Oliveira,Mauro Dal Secco de; Sforcini,Mariana Paula Rossi; Abud,Guilherme de Carvalho; Ferrari,Viviane Borba; Elejalde,Denise Adelaide Gomes; Ezequiel,Jane Maria Bertocco.
The objective of this study was to evaluate the chemical characteristics of the forage and ingestive behavior of Nellore heifers fed hydrolyzed sugarcane in different periods of storage. Twenty-four heifers with initial body weight of 119.6±8.1 kg were utilized. The experimental design was completely randomized, in which the treatments were diets with fresh sugarcane and hydrolyzed sugarcane (5 g of lime kg-1 of chopped sugarcane) stored for 24, 48 or 72 hours as the only roughage. The addition of lime to sugarcane associated with its storage up to 72 hours provided an increase of 20% of the potentially degradable cell wall of carbohydrates, from 382.4 to 458.8 g kg-1 of total carbohydrates. The in vitro digestibility of dry matter was altered by the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestibility; Hydrated lime; Idle; Nonstructural carbohydrates; Rumination.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900018
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Digestion of feed fractions and intake of heifers fed hydrolyzed sugarcane stored for different periods R. Bras. Zootec.
Missio,Regis Luis; Oliveira,Mauro Dal Secco de; Sforcini,Mariana Paula Rossi; Rennó,Francisco Palma; Freitas Júnior,José Esler; Elejade,Denise Adelaide Gomes; Ferrari,Viviane Borba; Abud,Guilherme de Carvalho.
The objective of this study was to evaluate, in Nellore heifers, intake and digestibility of hydrolyzed sugarcane stored for different periods. The experimental design used was a 4 × 4 Latin square, four diets, four Nellore heifers with ruminal cannulas (initial body weight 285.4±23.08 kg and average initial age 14 months) and four periods of 21 days. The diets were composed by fresh sugarcane (time zero) or hydrolyzed sugarcane with addition of 0.5% of hydrated lime, stored for 24, 48 or 72 hours, as the unique forage. Intake and digestibility of feed fractions, nitrogen balance, microbial synthesis efficiency, total number of ruminal protozoans and ammoniacal nitrogen did not significantly change by storing sugarcane with addition of 0.5% of hydrated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestibility; Dry matter intake; Hydrated lime; Microbial protein; Nellore; Nitrogen balance.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700025
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Productive performance of dairy cows fed with hydrolyzed sugarcane Ciência Rural
Teixeira Junior,Donizeti; Missio,Regis Luis; Sforcini,Mariana Paula Rossi; Oliveira,Mauro Dal Secco de; Ferrari,Viviane Borba; Santos,Rafael Ferreira.
This study aimed to evaluate the productive performance of dairy cows fed with sugarcane treated with 5g kg-1 of calcium oxide (CaO) or hydroxide [Ca(OH)2]. Eight Holstein cows with 638.01±12.52kg of body weight and milk yield of 20.32±1.5kg d-1 were randomly assigned into two 4x4 Latin squares, fed with the following diets composed of corn silage (CS), fresh sugarcane (FS), sugarcane treated with calcium oxide (STCO) or calcium hydroxide (STCH) as only forage. Data collection lasted five days, after 15 days of adaptation to diets and facilities. The dry matter intake (% of body weight) was higher in diets with CS (3.08) compared to those with FS (2.67), STCO (2.73) or STCH (2.73), which did not differ. Diets with CS determined milk production adjusted for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hydrated lime; Hydrolysis; Milk fat; Nutrient intake; Quicklime..
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001001848
Registros recuperados: 6
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