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  • 1
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    Online Resource
    〈b〉Mesquite pod meal in elephant grass silages〈/b〉 - doi: 10.4025/actascianimsci.v35i3.12506
    Universidade Estadual de Maringa ; 2013
    In:  Acta Scientiarum. Animal Sciences Vol. 35, No. 3 ( 2013-07-08)
    Details
    In: Acta Scientiarum. Animal Sciences, Universidade Estadual de Maringa, Vol. 35, No. 3 ( 2013-07-08)
    Type of Medium: Online Resource
    ISSN: 1807-8672 , 1806-2636
    URL: Article
    DOI: 10.4025/actascianimsci.v35i3.12506
    Language: Unknown
    Publisher: Universidade Estadual de Maringa
    Publication Date: 2013
    detail.hit.zdb_id: 2555935-7
    SSG: 7,36
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  • 2
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    Efeito dos tratamentos físicos e químicos no resíduo de lixadeira do algodão
    FapUNIFESP (SciELO) ; 2004
    In:  Ciência e Agrotecnologia Vol. 28, No. 4 ( 2004-08), p. 919-923
    Details
    In: Ciência e Agrotecnologia, FapUNIFESP (SciELO), Vol. 28, No. 4 ( 2004-08), p. 919-923
    Abstract: The experiment was carried out at the Department of Animal Science of the Universidade Federal de Lavras and at the Food Laboratory at the Universidade José do Rosário Vellano (UNIFENAS), with the objective to evaluate the nutritive value of cotton textile mill waste using chemical composition (DM, CP, NDF, ADF) and ruminal degradability of the dry matter and NDF. The treatments were: T1 - in natura residue (IN); T2 - residue submitted to the pressure and steam treated (127ºC/1,5 kgf/cm²/35"; PS); T3 - 4% sodium hydroxide treated residue (four 24 hours; NaOH); T4 - 3% urea treated residue (for 28 days; U); T5 - 4% NaOH +3% urea treated residue (NaOH/U); T6 - pressure and steam + 4% NaOH treated residue (PS/NaOH); T7 - pressure and steam + 3% urea treated residue (PS/U). The results obtained in the chemical composition can allow concluding that combined treatments improved the nutritive value of the residue, as the NaOH/U treatment showed better results of CP, NDF, ADF. In the degradability experiment, it may be concluded that PS, U, NaOH/U, PS/NaOH and PS/U treatments were efficient in increasing effective degradability of DM, also resulted higher dry matter soluble fraction (a) and lower insoluble potentially degradable fraction (b). The treatments U, PS/NaOH and PS/U had higher values of effective degradability of NDF and higher soluble fraction (a). The combined treatments increased the degradability and nutritive value of cotton textile mill waste, and combined treatments with urea had the better results.
    Type of Medium: Online Resource
    ISSN: 1413-7054
    URL: Article
    DOI: 10.1590/S1413-70542004000400027
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2004
    detail.hit.zdb_id: 2021028-0
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  • 3
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    Avaliação das alterações bromatológicas e de degradabilidade do resíduo de lixadeira do algodão após tratamento biológico com Pleurotus sajor-caju
    FapUNIFESP (SciELO) ; 2004
    In:  Ciência e Agrotecnologia Vol. 28, No. 3 ( 2004-06), p. 608-613
    Details
    In: Ciência e Agrotecnologia, FapUNIFESP (SciELO), Vol. 28, No. 3 ( 2004-06), p. 608-613
    Abstract: The objective of the experiment was to evaluate the bio-conversion treatment to enhance the nutritional value and degradability of cotton textile mill waste, using the fungi Pleurotus sajor-caju. The experiment was conducted at the Departments of Biology and Animal Science of the Universidade Federal de Lavras (UFLA), between July 2002 and January 2003. Bio-conversion was induced by the use of the residue as the main component in a substrate bed for cultivation of edible mushrooms (C1 and C2). In comparison to the untreated cotton textile mill waste, two bio-conversion alternatives by Pleurotus sajor-caju were tested. After mushroom production, samples of the treated material were submitted to in situ degradability tests and chemical composition. Results indicated that C1 and C2 treatments decreased fibrous fractions (ADF and NDF) and increased CP of cotton textile mill waste, improving the chemical composition. C1 and C2 treatments also resulted in an increased of soluble fraction (a), the degradation rate (c), and decreased insoluble potential degradable fraction (b); increasing effective degradability of DM and NDF of cotton textile mill waste.
    Type of Medium: Online Resource
    ISSN: 1413-7054
    URL: Article
    DOI: 10.1590/S1413-70542004000300017
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2004
    detail.hit.zdb_id: 2021028-0
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  • 4
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    Cinética da digestão ruminal da casca de café (Coffea arabica, L.) em vacas da raça holandesa
    FapUNIFESP (SciELO) ; 2004
    In:  Ciência e Agrotecnologia Vol. 28, No. 3 ( 2004-06), p. 627-636
    Details
    In: Ciência e Agrotecnologia, FapUNIFESP (SciELO), Vol. 28, No. 3 ( 2004-06), p. 627-636
    Abstract: In order to evaluate the kinetics of ruminal digestion by means of the in situ incubation tectonics of the dry matter (DM), crude protein (CP) and neuter detergent fiber (NDF) of isoenergetic and isoprotein rations with 16% of crude protein with different levels (0, 10, 20, 30 and 40%) of replacement of ground corn with straw and cob (GCSC) for coffee hull, an experiment was conducted at the Department of Animal Science of the Universidade Federal de Lavras - UFLA - Lavras - MG, Brazil, with three non-lactating cows of the holstein breed, fitted with ruminal cannulas into which samples of forage, coffee hull, CGSC and experimental rations for 0, 6, 12, 24, 48, 72 and 96 hours were incubated. The data obtained about the degradability were fit for a non-linear regression by Gauss-Newton's method. The data obtained allowed to evaluate that with increasing levels of coffee hull, the effective degradability of the dry matter of the rations proved similar to that of the ration without that residue, a trend of increased effectively degraded protein being also observed. But with neuter detergent fiber the effect was the reduction of effective degradability. Based upon this experiment, it follows that the replacement of GCSC for coffee hull up to the level of 40% did not affect the effective degradability of both the dry matter and crude protein of concentrates. Nevertheless, it reduced the effective degradability of neuter detergent fiber.
    Type of Medium: Online Resource
    ISSN: 1413-7054
    URL: Article
    DOI: 10.1590/S1413-70542004000300020
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2004
    detail.hit.zdb_id: 2021028-0
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  • 5
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    Online Resource
    Avaliação da produção de Pleurotus sajor-caju (Fr.) singer utilizando resíduo do beneficiamento têxtil do algodão como substrato
    FapUNIFESP (SciELO) ; 2007
    In:  Ciência e Agrotecnologia Vol. 31, No. 5 ( 2007-10), p. 1286-1290
    Details
    In: Ciência e Agrotecnologia, FapUNIFESP (SciELO), Vol. 31, No. 5 ( 2007-10), p. 1286-1290
    Abstract: The experiment was conducted to investigate the viability of the production of the edible fungus Pleurotus sajor-caju (Fr.) Singer in substrates in which main source of carbon was the cotton textille mill waste. Two substrates compositions were tested: C1 (cotton textille mill waste, wheat bran, plaster and limestone) and C2 (cotton textille mill waste, wheat bran, bean straw, plaster and limestone). A DIC experimental design was used, with nine repetitions for treatment and the production data and biological efficiency were analyzed being used the procedure ANOVAG of the statistical package SAEG. The cotton textille mill waste improvement, as the main ingredient of the substrate, was shown efficient for the production of the mushroom P. sajor-caju, presenting satisfactory values of productivity (0,56 and 0,55 kg/kg substratum) and biological efficiency (55,76 and 55,39%), respectively for C1 and C2. These results showed us that cotton textille mill waste, could be recommended as less onerous alternative of commercial substrate for the species Pleurotus sajor-caju.
    Type of Medium: Online Resource
    ISSN: 1413-7054
    URL: Article
    DOI: 10.1590/S1413-70542007000500002
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2007
    detail.hit.zdb_id: 2021028-0
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  • 6
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    Online Resource
    Simulation model for particle dynamics in rumen of cattle fed sugarcane diet
    FapUNIFESP (SciELO) ; 2005
    In:  Scientia Agricola Vol. 62, No. 2 ( 2005-04), p. 102-110
    Details
    In: Scientia Agricola, FapUNIFESP (SciELO), Vol. 62, No. 2 ( 2005-04), p. 102-110
    Abstract: Modelos de simulação animal são conjuntos de equações utilizados para descrever processos biológicos. Um modelo de simulação da digestão de bovinos em condições de ingestão descontínua é apresentado com objetivo de representar a disponibilidade de nutrientes como resposta ao padrão de consumo de alimentos e à cinética da redução do tamanho de partícula. Variáveis representando a redução do tamanho de partículas e consumo de alimento descontinuo foram incluídas em um modelo mecanicista criado para aperfeiçoar a suplementação de dietas à base de cana-de-açúcar. Os valores estimados estiveram muito próximos dos valores observados para fluxos de fibra e nitrogênio. O modelo não apresentou desvios consistentes dos valores observados de fluxo duodenal de fibra em detergente neutro e nitrogênio não-amoniacal. A média geral das produções de leite foi estimada com precisão. As estimativas sob condições de disponibilidade variável de nutrientes apresentaram maior precisão quando comparadas com o modelo anterior que assumia consumo continuo de nutrientes. O modelo pode ser usado para selecionar estratégias de suplementação de dietas à base de cana-de-açúcar em vacas em lactação.
    Type of Medium: Online Resource
    ISSN: 0103-9016
    URL: Article
    DOI: 10.1590/S0103-90162005000200002
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2005
    detail.hit.zdb_id: 2016347-2
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  • 7
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    Digestibility of pelleted rations containing diverse potato flour and urea
    FapUNIFESP (SciELO) ; 2015
    In:  Ciência Rural Vol. 45, No. 11 ( 2015-11), p. 2063-2068
    Details
    In: Ciência Rural, FapUNIFESP (SciELO), Vol. 45, No. 11 ( 2015-11), p. 2063-2068
    Abstract: Objetivou-se avaliar a degradação ruminal in situ da matéria seca (MS) e a digestibilidade in vitro de suplementos concentrados a base de farinha de batata diversa peletizada com ureia (0, 4, 8 e 12% da MS). Amostras de cada tratamento foram incubadas por 0, 2, 4, 8, 12, 24, 36 e 48 horas no rúmen de quatro ovinos fistulados. Não houve efeito (P 〉 ;0,05) do nível de inclusão de ureia sobre as frações solúvel ("a") e potencialmente degradável ("b") dos péletes, que variaram, respectivamente, de 2,1 a 12,1%, e de 72,9 a 87,5%. Foi observado efeito quadrático (P=0,03) para a taxa de degradação da fração "b", que variou de 4,75 a 7,39% h-1, sendo o valor máximo estimado em 7,4% h-1, obtido quando 5,9% de ureia foram incluídos no pélete. Foram observados efeitos quadráticos (P≤0,02) do nível de inclusão de ureia nos péletes sobre a degradabilidade efetiva (DE) da MS, considerando taxas de passagem no rúmen de 2, 5 e 8% h-1e os valores máximos de DE calculadas sob estas taxas de passagem no rúmen foram estimados com 6,3 a 7,3% de ureia nos péletes. A digestibilidade in vitro da MS dos péletes foi influenciada de forma quadrática (P=0,02) pelo nível de inclusão de ureia, com valor máximo de 96,9%, estimado quando 7,9% de ureia foram incluídos no pélete. A inclusão de 6 a 8% de ureia nos péletes promove incremento na digestibilidade in vitro e na degradabilidade efetiva da matéria seca
    Type of Medium: Online Resource
    ISSN: 0103-8478
    URL: Article
    DOI: 10.1590/0103-8478cr20141234
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2015
    detail.hit.zdb_id: 2025834-3
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  • 8
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    Efeito de diferentes doses de enxofre no consumo voluntário e nas populações de protozoários do rúmen de novilhas mestiças alimentadas com capim-elefante de baixa qualidade
    FapUNIFESP (SciELO) ; 2007
    In:  Ciência e Agrotecnologia Vol. 31, No. 1 ( 2007-02), p. 218-222
    Details
    In: Ciência e Agrotecnologia, FapUNIFESP (SciELO), Vol. 31, No. 1 ( 2007-02), p. 218-222
    Abstract: The experiment was carried out in the Experimental Field of Coronel Pacheco belonging to EMBRAPA Dairy Cattle, Minas Gerais. The effects of the doses of sulfur (ammonium sulfate, 0.15%, 0.31%, 0.46% and 0.92%S fresh matter/day) on the ruminal protozoa population was evaluated by utilizing four 7/8 Holstein x Zebu, heifers arranged in 4 x 4 Latin square. Low quality elephant grass (76.1% NDF in DM) , chopped with correction of the CP content to 7% with urea plus a mineral mixture without sulfur given directly into the rumen. Samplings of the ruminal content were done, one hour after feeding. The estimate of the ruminal microbial populations was done by means of the direct microscopy. The results were transformed to decimal logarithm and evaluated statistically. There were no significant differences among the treatments for microorganisms. The 0.92%S treatment presented the least dry matter intake and, in addition, caused start of intoxication in two animals. According to those results, doses of 0.31% of sulfur added to the diet promoted the increase of the ruminal microorganism populations and hence a greater voluntary intake.
    Type of Medium: Online Resource
    ISSN: 1413-7054
    URL: Article
    DOI: 10.1590/S1413-70542007000100032
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2007
    detail.hit.zdb_id: 2021028-0
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  • 9
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    Estimativa da degradabilidade ruminal de alimentos utilizando a técnica de produção de gás em bovinos, ovinos e caprinos
    FapUNIFESP (SciELO) ; 2003
    In:  Ciência e Agrotecnologia Vol. 27, No. 3 ( 2003-06), p. 689-695
    Details
    In: Ciência e Agrotecnologia, FapUNIFESP (SciELO), Vol. 27, No. 3 ( 2003-06), p. 689-695
    Abstract: The objective of this work was to validate the technique of gas production in the evaluation of concentrated feeds and roughages, and the possible differences between cattle, sheep, and goats, regarding the degradation of these feeds. The experiment was carried out in the Laboratory of Animal Research at the Animal Science Department - Federal University of Lavras, Brazil. The ruminal liquor came from three Holstein cows, three sheep, and three goats, without defined race. All were fistulated in the rumen. The neutral detergent soluble fraction (NDS) and neutral detergent fiber (NDF), of ground corn, soybean meal, cotton meal, cotton seed, wheat meal, citrus pulp, alfalfa hay, coast cross hay, corn silage and grass silage were evaluated. The readings of the cumulative volume of gas were made from 1 to 72 hours after incubation. There was not difference (P 〉 0.05) among the animal species, for any of the studied variables. The NDS fraction presented larger gas production and degradation rate in relation to NDF. The gas production technique allowed to estimate the rates of digestion of the insoluble fractions and, mainly, the soluble fractions of the total carbohydrates.
    Type of Medium: Online Resource
    ISSN: 1413-7054
    URL: Article
    DOI: 10.1590/S1413-70542003000300026
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2003
    detail.hit.zdb_id: 2021028-0
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  • 10
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    Avaliação da Casca e da Polpa Desidratada de Café (Coffea arabica L.) pela Técnica de Degradabilidade In vitro de Produção de Gás
    FapUNIFESP (SciELO) ; 2001
    In:  Revista Brasileira de Zootecnia Vol. 30, No. 6 ( 2001-12), p. 1829-1836
    Details
    In: Revista Brasileira de Zootecnia, FapUNIFESP (SciELO), Vol. 30, No. 6 ( 2001-12), p. 1829-1836
    Abstract: The experiment was conducted utilizing hull and dehydrated pulp of coffee cultivars Catuaí, Rubi and Mundo Novo. Pulp was obtained by moist pulping in a mechanical pulper and dried up to 13% moisture. Materials were stored in raffia bags in ventilated, moistureless environment and sun sampled every 90 days. 400 mg of each sample (DM and NDF) were incubated in vitro in triplicates in a water bath at 39ºC. The cumulative gas production was obtained at 1,2,3,4,5,5,12, 18, 24, 30, 36 48 60 and 72 hours. The kinetics of the cumulative gas output for DM and NDF as determined using the model Vt = Vt1/(1 + exp(2 + 4m(L - T))) and SDN by the model Vt = Vt1 ´ (1 - exp(-m x T)). Cumulative gas production of the SDN fraction was obtained by the difference between the cumulative production from DM and NDF. Storage of hull and dehydrated coffee pulp improved the degradation rate, reduced fibrous and undegradable fractions, releasing soluble sugars for the ruminal flora. For coffee hulls of all cultivars, the maximum fermentation contribution of SDN and NDF took place respectively around 24 and 48 hours. The maximum gas production in pulp DM occurred between 48 and 60 hours in all cultivars and was a consequence of the maximum gas production by the NDF fraction, which peaked around 60 hours. Long colonization period may be a limitation to the use of hull and dehydrated coffee pulp in ruminant feeding, impairing feed utilization by ruminal microorganisms due to the rapid passage by the rumen.
    Type of Medium: Online Resource
    ISSN: 1516-3598
    URL: Article
    DOI: 10.1590/S1516-35982001000700021
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2001
    detail.hit.zdb_id: 2078814-9
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