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| Registros recuperados: 20 | |
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| Rivera Urbina, Angélica. |
| La porcicultura requiere de mayores ingresos y reducir la emisión de contaminantes. Para ello se debe aumentar la eficiencia en la utilización del alimento. Como alternativas se ha planteado el uso de promotores del crecimiento ó reducir el nivel de proteína en la dieta hasta por cuatro unidades porcentuales sin afectar la respuesta productiva; sin embargo, los resultados han sido inconsistentes. Por ello se realizaron dos experimentos para evaluar la respuesta productiva, las características de la canal, y la concentración de urea en plasma de cerdos machos castrados híbridos (YorkshirexDurocxPietrain) en finalización, alimentados con dietas bajas en proteína adicionadas con prebióticos. En el experimento 1 se utilizaron 32 animales de 56.56 ± 5.17 kg de... |
| Tipo: Tesis |
Palavras-chave: Cerdos en finalización; Baja proteína; Oligomananos; Nucleótidos Finishing barrows; Low-protein diets; Mannan-oligosaccharides; Nucleotides. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1084 |
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| Santana,Marconi Bonfim de; Melo,Antonio Diego Brandão; Cruz,Daniel Ribeiro; Garbossa,Cesar Augusto Pospissil; Andrade,Carla de; Cantarelli,Vinicius de Souza; Costa,Leandro Batista. |
| An experiment was conducted to evaluate the addition of sodium butyrate, plant extracts and nucleotides on weanling pig performance, digestive content pH, organ morphometry, and intestinal epithelial histology. A total of 90 piglets at 21 days of age and an average initial weight of 6.35±0.34kg were used. The piglets were distributed in a randomized complete block design with five treatments, six replicates, and three animals per experimental unit. The treatments consisted of the following: Control: basal diet without antibiotic; Antibiotic: basal diet with 40mg kg-1 colistin sulfate and Additive: 1000, 1500 and 2000mg kg-1 of a combination of sodium butyrate + plant extracts + nucleotides. The experiment lasted 35 days, at which time one animal was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbal extracts; Nucleotides; Nutrition; Sodium butyrate. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000601093 |
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| Zamora Zamora, Vicente. |
| La composición nutrimental de la dieta afecta las características del semen y composición de nutrientes del espermatozoide. El comportamiento sexual en machos no está completamente relacionado con las hormonas esteroides producidas en el testículo. Se realizaron dos experimentos para evaluar el potencial de la adición de ácido linoleico conjugado (ALC; experimento 1) o nucleótidos (experimento 2) a dietas para verracos para mejorar las características seminales y modificar el perfil de ácidos grasos del espermatozoide. Adicionalmente se evaluó el comportamiento sexual y concentración de hormonas específicas en verracos castrados tratados con PGF2α (experimento 3). En el experimento 1, los tratamientos evaluados fueron: T1) Dieta testigo y T2) Dieta con 1%... |
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Palavras-chave: ALC; Calidad seminal; Comportamiento reproductivo; Nucleótidos; Verracos; CLA; Nucleotides; Semen quality; Sexual behavior; Doctorado; Ganadería. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/199 |
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| Zamora Zamora, Vicente. |
| La composición nutrimental de la dieta afecta las características del semen y composición de nutrientes del espermatozoide. El comportamiento sexual en machos no está completamente relacionado con las hormonas esteroides producidas en el testículo. Se realizaron dos experimentos para evaluar el potencial de la adición de ácido linoleico conjugado (ALC; experimento 1) o nucleótidos (experimento 2) a dietas para verracos para mejorar las características seminales y modificar el perfil de ácidos grasos del espermatozoide. Adicionalmente se evaluó el comportamiento sexual y concentración de hormonas específicas en verracos castrados tratados con PGF2α (experimento 3). En el experimento 1, los tratamientos evaluados fueron: T1) Dieta testigo y T2) Dieta con 1%... |
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Palavras-chave: ALC; Calidad seminal; Comportamiento reproductivo; Nucleótidos; Verracos; CLA; Nucleotides; Semen quality; Sexual behavior; Doctorado; Ganadería. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/199 |
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| Pelícia,VC; Sartori,JR; Zavarize,KC; Pezzato,AC; Stradiotti,AC; Araujo,PC; Mituo,MAO; Madeira,LA. |
| This study aimed at evaluating the effect of nucleotides on the performance and carcass yield of broilers fed diets with no antibiotic growth promoters (AGP), anticoccidials, or animal feedstuffs. In the trial, 600 Ross 308 male broilers were distributed in a completely randomized experimental design into six treatments with four replicates of 25 birds each. Treatments consisted of a control diet (CD), CD + AGP, CD + 0.04%, CD + 0.05%, CD + 0.06%, and CD + 0.07% nucleotides. The experimental diets did not contain anticoccidials, and birds were vaccinated against coccidiosis at three days of age. No significant differences were detected among broilers submitted to the different treatments in none of the studied parameters. Under the conditions of this... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Nucleotides; Performance. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000100004 |
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| Salinas Sánchez, Eva. |
| Se realizaron dos experimentos para evaluar la respuesta productiva (ganancia diaria de peso, GDP; consumo diario de alimento, CDA; conversión alimenticia, CA; peso final, Pf; ganancia de carne magra, GCM), las características de la canal (grasa dorsal final, GDf; área del músculo longissimus final, AMLf; porcentaje de carne magra final, PCMf) y la concentración de urea en plasma (Exp. 2) en cerdos en iniciación alimentados con dietas con base en sorgo-pasta de soya bajas en proteína (DBP) y con proteína estándar con la adición de AA sintéticos y dos tipos de aditivos en sustitución del antibiótico. En el Exp. 1, se utilizaron 32 cerdos machos castrados con 13.5+1.48 kg de peso, quienes recibieron dos concentraciones de PC (20.0 y 14.5%) y cuatro de... |
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Palavras-chave: Cerdos en iniciación; Dietas con baja proteína; Manano-oligosacáridos; Nucleótidos; Nursery pigs; Low-protein diets; Mannan-oligosacharides; Nucleotides; Maestría; Ganadería. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/409 |
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| Gomes,Eleni; Silva,Roberto da; Serzedello,Alcides. |
| Ribonuclease production by Aspergillus flavipes, A. sulphureus and A. fischeri in semi-synthetic medium, after 24-144 hours at 30ºC under shaking, was studied. After cultivation, the medium was separated from micelia by filtration and the resultant solution was used as enzymatic extract. The highest amount of biomass and RNase was obtained after 96 hours of cultivation. The enzymes produced by three species presented similar characteristics, with optimum temperature at 55ºC and two peaks of activity at pH 4.5 and 7.0. A. flavipes RNases were more sensitive to temperature: 50% of the initial activity was lost after 1 hour at 70ºC. After this heat treatment, RNase of A. sulphureus lost 30% of this activity and that of A. fischeri only 16%. The nucleotides... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ribonucleases; Aspergillus; Nucleotides. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141998000300008 |
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| Sakamoto,MI; Faria,DE; Nakagi,VS; Murakami,AE. |
| The aim of this experiment was to evaluate the effect of sources of trophic action (glutamine alone, glutamine associated with glutamic acid and yeast) associated with vaccination against coccidiosis on the performance and morphometry of the small intestine of broilers. In the trial, 1,200 broiler chicks were distributed according to a completely randomized design with a 3 x 2 + 2 (trophic action x vaccination or not + control - free trophic factor) factorial arrangement, with five replicates of 30 birds each. Vaccination negatively affected performance parameters and the morphometry of the intestinal mucosa, but at the end of the experimental period, among the broilers vaccinated against coccidiosis, the group fed glutamine presented better recovery from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eimeria; Glutamine; Intestinal mucosa; Nucleotides. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400008 |
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| Norton,R.; Leite,J.; Vieira,E.; Bambirra,E.; Moura,C.; Penna,G.; Penna,F.. |
| Until recently, dietary sources of nucleotides were thought not to be essential for good nutrition. Certain states with higher metabolic demands may require larger amounts that cannot be provided by endogenous production. The objective of the present study was to determine the action of nucleotides on the recovery from lactose-induced diarrhea in weaned rats. Thirty-six weanling Fisher rats were divided into two groups. Group 1 received a standard diet and group 2 received a diet containing lactose in place of starch. On the 10th day, six animals per group were sacrificed for histopathological evaluation. The remaining animals were divided into two other subgroups, each with 6 animals, receiving a control diet, a control diet with nucleotides (0.05%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nucleotides; Diarrhea; Weight; Weanling rats. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000200006 |
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| Pereira,Cinthia Maria Carlos; Donzele,Juarez Lopes; Silva,Francisco Carlos de Oliveira; Oliveira,Rita Flávia Miranda de; Kiefer,Charles; Ferreira,Aloízio Soares; Hannas,Melissa Izabel; Brustolini,Paulo César. |
| The objective of this study was to evaluate the inclusion of yeast extract as a partial replacemer of blood plasma in piglet diets and its effect on the performance and intestinal morphometry of pigs weaned at 21 days of age. One hundred and twenty animals were randomized into blocks, with five diets (4.0% blood plasma; 2.0% blood plasma with 0.0; 1.0; 2.0 or 3.0% yeast extract), six replicates and four pigs per experimental unit. At 35 days of age, one pig per experimental unit was slaughtered in order to evaluate duodenal and jejunal morphometry. The levels of yeast extract had a quadratic impact on daily feed intake and final weight, which increased up to the estimated level of 1.91%. Daily weight gain and feed conversion rate were not affected. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Intestinal mucosa; Nucleotides; Performance; Swine. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700017 |
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| Муравьева, И. П.. |
| Изучена сезонная динамика химического состава зеленой водоросли Enteromorpha intestinalis (L.) Link (белок, аминокислоты, свободные нуклеотиды, РНК, ДНК, кислоторастворимые, щелочерастворимые, трудногидролизуемые углеводы, моносахариды и полисахариды, липиды, углеводороды, хлорофиллы "а" и "в", каротиноиды) из двух бухт Севастополя (Черное море) - Нефтегавани (загрязненный район) и Казачьей (условно чистый). Энтероморфа из Нефтегавани во все сезоны содержит больше свободных нуклеотидов, ДНК, РНК, липидов, углеводородов и пигментов, но отличается меньшим содержанием углеводов по сравнению с водорослями из б. Казачьей. |
| Tipo: Journal Contribution |
Palavras-chave: Макрофиты; Сезонная динамика; Белок; Углеводы; Липиды; Нуклеотиды; Загрязнение; Pollution; Carbohydrates; Lipids; Nucleotides; Protein; Macrophytes Lipids Carbohydrates Proteins Nucleotides Pollution Carbohydrates Pollution Nucleotides Lipids Proteins http://aims.fao.org/aos/agrovoc/c_1300 http://aims.fao.org/aos/agrovoc/c_6077 http://aims.fao.org/aos/agrovoc/c_5259 http://aims.fao.org/aos/agrovoc/c_4362 http://aims.fao.org/aos/agrovoc/c_6259. |
| Ano: 2002 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/388 |
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| Registros recuperados: 20 | |
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