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A model for evaluating beef cattle rations considering effects of ruminal fiber mass R. Bras. Zootec.
Henrique,Douglas Sampaio; Lana,Rogério de Paula; Vieira,Ricardo Augusto Mendonça; Fontes,Carlos Augusto de Alencar; Botelho,Mosar Faria.
A mathematical model based on Cornell Net Carbohydrate and Protein System (CNCPS) was developed and adapted in order to evaluate beef cattle rations at tropical climate conditions. The presented system differs from CNCPS in the modeling of insoluble particles' digestion and passage kinetics, which enabled the estimation of fiber mass in rumen and its effects on animal performance. The equations used to estimate metabolizable protein and net energy requirements for gain, net energy requirement for maintenance and total efficiency of metabolizable energy utilization were obtained from scientific articles published in Brazil. The parameters of the regression equations in these papers were estimated using data from Bos indicus purebred and crossbred animals...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Modeling; Nutrition; Ruminants.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100036
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A survey of Senecio spp. affecting livestock in Uruguay and their associated pyrrolizidine alkaloid content Ciência Rural
García,Juan Agustín; Santos,Carmen García y; Rosas,Juan; Dutra,Fernando; Gardner,Dale.
ABSTRACT: In Eastern Uruguay there has been a significant increase of seneciosis in grazing livestock with most affected localities related to counties neighboring the Brazilian border. A survey in 28 farms associated with poisoning outbreaks in grazing cattle in Eastern Uruguay was carried out. Fifty populations of Senecio plants were collected for alkaloid analysis and species identification. Four species were identified: S. oxyphyllus DC, S. madagascariensis Poir, S. brasiliensis (Spreng.) Less., and S. selloi DC. Alkaloids were identified by a combination of GC-MS and HPLC-MS analysis and included: retrorsine in S. oxyphyllus; retrorsine, usaramine, and senecivernine/senecionine in S. selloi; retrorsine, senecivernine/senecionine, integerrimine, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seneciosis; Plant secondary metabolites; Ruminants; Poisonous plants; Asteraceae.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000200501
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Agronomic characteristics of forage sorghum cultivars for silage production in the lower middle San Francisco Valley - doi: 10.4025/actascianimsci.v35i1.13072 Animal Sciences
Santos, Rafael Dantas dos; Empresa Brasileira de Pesquisa Agropecuária (Embrapa Semiárido); Pereira, Luiz Gustavo Ribeiro; Empresa Brasileira de Pesquisa Agropecuária (Gado de Leite); Neves, André Luis Alves; Empresa Brasileira de Pesquisa Agropecuária (Gado de Leite); Rodrigues, José Avelino Santos; Empresa Brasileira de Pesquisa Agropecuária (Milho e Sorgo); Costa, Cleber Thiago Ferreira; Universidade Federal Rural de Pernambuco; Oliveira, Getúlio Figueiredo de; Universidade Federal de Sergipe.
Productive performance for silage production of five forage sorghum genotypes (BRS Ponta Negra, BRS 655, BR 601, BRS 506 and BRS 610) was evaluated through the yield of dry matter, digestible dry matter, and fresh matter, plant height, percentage of lodged and broken plants, and anatomical fractions in Brazilian semi-arid region. BRS 506 and BRS Ponta Negra varieties achieved the highest fresh forage yields (89.4 and 76.2 ton. ha-1), and BRS 506, stood out for dry and digestible dry matter yield (25.2 and 12.1 ton. ha-1, respectively). Regarding the participation of the plant fractions, BRS 655 and BRS 610 genotypes showed a higher percentage of panicles (50.2 and 41.0% respectively), while BRS 506 stressed out the stem participation (84.6%), and BRS Ponta...
Tipo: Pesquisa de campo Palavras-chave: 5.04.04.00-8; 5.04.04.01-6; 5.04.05.00-4 fforage; Dry matter; Nutrition; Ruminants; Sorghum bicolor (L.) Moench.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13072
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Bispectral index assessment in calves subjected to the continuous infusion of propofol combined with fentanyl administration Ciência Rural
Deschk,Mauricio; Trein,Thomas Alexander; Wagatsuma,Juliana Tessália; Silva,Guilherme Lopes da; Araújo,Marcelo Augusto de; Games,Bruna de Moraes Martins; Alcindo,Jefferson Filgueira; Rodrigues,Celso Antônio; Santos,Paulo Sergio Patto dos.
ABSTRACT: The aim of this study was to evaluate the bispectral index (BIS) effects in calves through continuous infusion of propofol with or without fentanyl. Eight Holstein male calves (ages from six to twelve months old) with an average weight of 123±18kg were used. All animals participated in both groups, always keeping a minimum interval of one week between the anesthetic procedures; the calves were randomly distributed between groups. Anesthesia was induced with an intravenous (IV) dose of propofol of 5mg kg-1 in control group (GP) or with propofol (4mg kg-1) associated with IV fentanyl 0.001mg kg-1(GF). All the calves were positioned in right lateral recumbency and were allowed to spontaneously breathe room air. Subsequently, the anesthesia was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calves; Ruminants; Balanced anesthesia; Anesthetic monitoring.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100602
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Bromatological characteristics and in vitro digestibility of four sugarcane varieties subjected or not to the application of quicklime - doi: 10.4025/actascianimsci.v34i4.13775 Animal Sciences
Oliveira, Mauro Dal Secco; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Rêgo, Aníbal Coutinho do; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Sforcini, Mariana Paula Rossi; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Freitas Junior, José Esler; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Santos, Juliana dos; Instituto Federal do Rio Grande do Sul; Carvalho, Marina Vieira de.
The experiment was conducted to evaluate the bromatological characteristics and the in vitro digestibility of four sugarcane varieties, subjected or not to hydrolysis, with quicklime. A completely randomized design was employed with three replications arranged in a 4 × 2 factorial scheme, with four sugarcane varieties (SP 52454, RB 867515, RB 855536 and IAC 862480), hydrolyzed or not. There was significant effect on brix (p < 0.05) and industrial fiber (p < 0.05), and IAC 862480 variety had the lowest levels of industrial fiber. There were no significant difference (p > 0.05) in neutral detergent fiber, acid detergent fiber and lignin levels among the sugarcane varieties under analysis and for the sugarcanes, hydrolyzed or not. The use...
Tipo: Análise laboratorial Palavras-chave: 5.04.03.02-8 calcium oxide; Cell wall; Fiber; Ruminants; Saccharum officinarum L..
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13775
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Chemical composition and crude protein fractions of Coastcross grass under grazing on winter, spring and summer in Southern Brazil - doi: 10.4025/actascianimsci.v34i2.10895 Animal Sciences
Branco, Antonio Ferriani; Universidade Estadual de Maringá; Viana, Keila Bianchin; Universidade Estadual de Maringá; Castañeda, Román David; Universidade Estadual de Maringá; Prohmann, Paulo Emilio; Universidade Estadual de Maringá; Coneglian, Sabrina Marcantonio; Universidade Estadual de Maringá; Mouro, Gisele Fernanda; Universidade Estadual de Maringá.
The objective of this study work was to assess crude protein fractions in structural components (leaves, stem and dead material) of Coastcross grass (Cynodon dactylon (L.) Pers) under grazing, on winter, spring and summer seasons, in the Northwestern of Paraná, South of Brazil. Were determined CP, NDF, ADF contents and protein fractions, A, B1, B2, B3 and C. The analysis of CP showed great differences among months, but there was no difference among seasons. NDF and ADF in the stem were lower (p < 0.05) during the spring. The season did not affect (p > 0.05) protein fractions A, B1, B2, B3 and C of leaves. However, it was observed that the highest proportions of CP were B3 and A fractions. For the stem, the most important crude protein...
Tipo: Pesquisa de campo ; análise laboratorial Palavras-chave: 5.04.00.00-2 e 5.04.03.00-1 seasons; Nitrogen; Ruminants; CNCPS.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10895
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Composition and fatty acid profile of milk from cows on pasture subjected to licuri oil supplement R. Bras. Zootec.
Lima,Luciano dos Santos; Oliveira,Ronaldo Lopes; Bagaldo,Adriana Regina; Garcez Neto,Américo Fróes; Ribeiro,Cláudio Vaz Di Mambro; Lanna,Dante Pazzanese Duarte.
The objective of this study was to determine the best level of oil licuri concentrate on dairy cows. The best level was determined through an analysis of the milk's chemical composition and fatty acid profile. Sixteen lactating cows from the Holstein × Zebu cross breed kept on Tanzania grass pastures were divided into four 4 × 4 Latin squares, which were formed by four experimental periods of 21 days. The 21-day experimental periods were divided into 17 days for adaptation and four days for collection. Cows received three kg of concentrate per day, at the time of milking. Treatments consisted of four types of feed containing the following levels: 0, 1.5, 3.0, and 4.5% inclusion of dry matter (DM) licuri oil concentrate. The licuri oil levels changed the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Licuri; Lipids; Ruminants.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001200033
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Control of Footrot in Small Ruminants of Nepal AgEcon
McLeod, Ross.
Footrot, a bacterial disease which attacks the feet of sheep and goats causing lameness and high levels of flock mortality, was endemic in the western districts of Nepal. As a result of the collaborative efforts between Nepalese, Australian and British scientists within ACIAR projects AS2/1991/017 and AS2/1996/021, the virulent form of this disease has been eradicated from the livestock industries of the country. The economic benefits stemming from this achievement are described and quantified in this report. Over the 1993–2022 period, ACIAR invested $A1.5 million in research designed to improve the management of footrot in Nepal. Based on levels of disease prevalence reported at the beginning of the projects and a probability of the disease spreading to...
Tipo: Book Palavras-chave: Footrot; Ruminants; Bacterial disease; Nepal; Australia; Livestock; Economic benefits; Net present value; Benefit-cost ratio; Disease eradication; Farm Management; International Development; Livestock Production/Industries; Production Economics.
Ano: 2001 URL: http://purl.umn.edu/47694
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Degradation kinetics and assessment of the prediction equation of indigestible fraction of neutral detergent fiber from agroindustrial byproducts R. Bras. Zootec.
Filho,José Gilson Louzada Regadas; Pereira,Elzânia Sales; Pimentel,Patrícia Guimarães; Oliveira,Tadeu Silva de; Costa,Marcus Roberto Góes Ferreira; Maia,Iana Sérvulo Gomes.
This study aimed at estimating the kinetic parameters of ruminal degradation of neutral detergent fiber from agroindustrial byproducts of cashew (pulp and cashew nut), passion fruit, melon, pineapple, West Indian cherry, grape, annatto and coconut through the gravimetric technique of nylon bag, and to evaluate the prediction equation of indigestible fraction of neutral detergent fiber suggested by the Cornell Net Carbohydrate and Protein System. Samples of feed crushed to 2 mm were placed in 7 × 14 cm nylon bags with porosity of 50 µm in a ratio of 20 g DM/cm² and incubated in duplicate in the rumen of a heifer at 0, 3, 6, 9, 12, 16, 24, 36, 48, 72, 96 and 144 hours. The incubation residues were analyzed for NDF content and evaluated by a non-linear...
Tipo: Info:eu-repo/semantics/article Palavras-chave: CNCPS; Feed; Fruit; Ruminants.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000900022
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Desafios para a mitigação da emissão de metano entérico no Semiárido brasileiro. Infoteca-e
GOIS, G. C.; VOLTOLINI, T. V.; NOGUEIRA, G. H. M. de S. M. F.; AMORIM, J. S.; SANTOS, R. N.; PEREIRA, J. de S.; LIMA, A. E. S. de.
Metano; Produção de metano.
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Mitigação; Metano; Mudança Climática; Pecuária; Ruminante; Livestock; Ruminants.
Ano: 2019 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117743
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Digestibility of pelleted rations containing diverse potato flour and urea Ciência Rural
Martinele,Isabel; Paiva,Paulo César de Aguiar; Lopes,Fernando César Ferraz; Pereira,Juliana de Cássia; Ferreira,Ludhiana Rosa.
The aim of this study was to evaluate ruminal in situ degradability and in vitro digestibility of dry matter (DM) in concentrate supplements containing diverse potato flour pelletized with urea (0%, 4%, 8%, and 12% DM). Samples of feeds were incubated for 0, 2, 4, 8, 12, 24, 36, and 48h in the rumen of four fistulated sheep. Level of urea added had no significant effect (P>;0.05) on the soluble fraction (a) or potentially degradable fraction (b) of the pellets and ranged from 2.1% to 12.2% and 72.9% to 87.5%, respectively. Quadratic effects (P=0.03) of the rate of degradation of fraction "b" ranged from 4.75% h-1to 7.39% h-1; the estimated maximum value at 7.4% h-1was obtained when 5.9% urea was added to the pellet. Quadratic effects (P≤0.02) of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative feeds; Pelletization; Ruminants; Solanum tuberosum.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001102063
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Disaggregate Productivity Growth in Livestock Production: A Directional Malmquist Index Approach AgEcon
Ludena, Carlos E.; Hertel, Thomas W.; Preckel, Paul V.; Foster, Kenneth A.; Nin Pratt, Alejandro.
Limited data on the allocation of inputs to different activities has limited agricultural economists' attempts to measure sub-sector productivity growth in agriculture. However, recent developments have enabled us to estimate total factor productivity (TFP) growth for crops and livestock accounting for input-output allocation. This paper extends previous work on TFP measurement for livestock into ruminants and non-ruminant productivity measurement, given the differences in productivity growth rates among these species. The results show that the non-ruminant sector is more dynamic than the ruminant sector, driving most of the productivity growth within the livestock sector. Given the rapid rates of productivity growth observed recently, non-ruminant...
Tipo: Conference Paper or Presentation Palavras-chave: Total factor productivity; Malmquist index; Livestock; Ruminants; Non-ruminants; Productivity Analysis; O47; O57; Q16.
Ano: 2005 URL: http://purl.umn.edu/19395
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Diseño y evaluación de nanoparticulas de selenito de sodio para su uso en rumiantes Colegio de Postgraduados
Romero Pérez, Atmir.
El selenito de sodio, el suplemento de selenio mas usado en rumiantes en la prevención de la deficiencia del elemento y las enfermedades resultantes, fue encapsulado por nanoprecipitación y emulsión-evaporación en nanopartículas poliméricas. Fue evaluado el efecto del método de preparación de nanoparticulas, proporciones de polímeros (Eudragit RL 100 y RS 100) y solvente empleado (etanol y acetona), sobre las características fisicoquímicas (potencial z, índice de polidispersidad y porcentaje de encapsulación) y la morfología (tamaño de partícula y forma) de las nanopartículas. El tamaño de partícula obtenido presentó valores de 34.64 a 213.86 nm. Tanto el tamaño como el potencial z y el PDI se incrementaron (P < 0.05) cuando se utilizó el...
Tipo: Tesis Palavras-chave: Nanopartículas; Selenito de sodio; Eudragit; Rumiantes; Maestría; Ganadería; Nanoparticles; Sodium selenite; Eudragit; Ruminants.
Ano: 2008 URL: http://hdl.handle.net/10521/1515
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Distribution and factors associated with Fasciola hepatica infection in cattle in the south of Espírito Santo State, Brazil J. Venom. Anim. Toxins incl. Trop. Dis.
DP,Alves; MB,Carneiro; IVF,Martins; CC,Bernardo; DM,Donatele; Pereira Júnior OS,; BR,Almeida; BR,Avelar; AGC,Leão.
Fasciolosis is a disease that affects the liver parenchyma and bile ducts of numerous animals, including humans, which causes economic losses and threatens public health. The present work aimed at reporting the distribution and factors connected with Fasciola hepatica infection in cattle in ten municipalities in southern Espírito Santo, Brazil, between 2008 and 2009. During this period, 50 rural properties in ten cities were analyzed and fecal samples from 10% of the cattle on each farm were collected. Of the 717 samples analyzed, 154 (21.33%) presented Fasciola hepatica eggs. As for the 50 rural properties studied, 32 (64%) had animals positive for fasciolosis. Throughout the evaluation, it was observed that 42 (84%) rural properties had flooded areas, 33...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fasciolosis; Epidemiology; Ruminants.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000300006
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Duodenal histology and carcass quality of feedlot cattle supplemented with calcium butyrate and Bacillus subtilis Animal Sciences
Moreira, Thiago Simas de Oliveira; Marques, Karolyna Oliveira; Guimarães, Kátia Cylene; Marchesin, Wilson Aparecido; Bilego, Ubirajara Oliveira; Freitas, Nulciene Firmino.
The experiment was carried out at the Comigo Technology Center, in Rio Verde, State of Goiás, Brazil, with the objective of evaluating the effects of supplementation with calcium butyrate, as a growth promoting agent for the duodenal mucosa and Bacillus subtilis as a probiotic performance enhancer in feedlot cattle. Calcium butyrate (5 and 10 g per animal per day) and Bacillus (10 g per animal per day) were added to a basal diet. There were used 85 Nelore bulls, with average weight of 315 ± 7 kg. The experiment lasted 118 days, including the adaptation period, until slaughter at 30 months of age. Diets were distributed in a completely randomized design with four treatments, where: T1 = control (basal diet); T2 = basal diet + 5 g calcium butyrate; T3 =...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.03.00-1 duodenum; Probiotic; Ruminants.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27432
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Efeito da substituição do farelo de trigo por torta de amêndoa de dendê no consumo voluntário e digestibilidade de misturas suplementares para ruminantes. Infoteca-e
RODRIGUES FILHO, J. A.; CAMARAO, A. P.; AZEVEDO, G. P. C. de; BRAGA, E..
bitstream/item/32777/1/CPATU-BP190.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Torta de dendê; Farelo de trigo; Consumo voluntário; Belém; Pará; Brasil; Comsumption.; Digestibilidade; Nutrição Animal; Ruminante.; Animal nutrition; Amazonia; Digestibility; Oilseed cakes; Ruminants; Wheat bran..
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376628
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Effect of genus and growth stage on the chemical and mineral composition of tropical grasses used to feed dairy cows Ciencia e Investigación Agraria
Arzate-Vázquez,Gerardo L; Castrejón-Pineda,Francisco A; Rosiles-Martínez,René; Carrillo-Pita,Silvino; Angeles-Campos,Sergio; Vargas-Bello-Pérez,Einar.
G.L. Arzate-Vázquez, F.A. Castrejón-Pineda, R. Rosiles-Martínez, S. Carrillo-Pita, S. Angeles-Campos, and E. Vargas-Bello-Pérez. 2016. Effect of genus and growth stage on the chemical and mineral composition of tropical grasses used to feed dairy cows. Cien. Inv. Agr. 43(3): 476-485. In tropical production systems, dairy cows are rarely supplemented with minerals, which often lead to mineral imbalances. Grasses grown together in the same soil type and sampled at the same growth stage can vary widely in chemical and mineral composition; therefore, the objective of this study was to characterize the chemical and mineral composition of Urochloa spp., Megathyrsus spp., and Andropogon spp. at three different stages of growth in the same soil type. The content...
Tipo: Journal article Palavras-chave: Cows; Forage; Nutritive value; Ruminants; Trace minerals.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000300013
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Effects of dietary brown propolis on nutrient intake and digestibility in feedlot lambs R. Bras. Zootec.
Silva,Jonilson Araújo da; Ítavo,Camila Celeste Brandão Ferreira; Ítavo,Luís Carlos Vinhas; Morais,Maria da Graça; Franco,Gumercindo Loriano; Zeoula,Lucia Maria; Heimbach,Natália da Silva.
The present study tested brown propolis in crude or extract form as a feed supplement for feedlot lambs to identify the type that most improves in vivo nutrient digestibility. Digestibility was assessed by both total fecal collection and internal markers and the results obtained by these techniques were compared. The completely randomized design was used to compare feed intake and nutrient digestibility of 24 male lambs aged seven months among four dietary treatments (crude brown propolis, propolis ethanol extract, monensin sodium, and control). Methods of feces collection were compared using a completely randomized split-plot design, with experimental diets corresponding to the main factor and the methods to estimate fecal production as the sub-factor....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Flavonoids; Monensin; Ruminants.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000700376
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Effects of different lipid levels on protozoa population, microbial protein synthesis and rumen degradability in cattle - doi: 10.4025/actascianimsci.v34i3.12729 Animal Sciences
Messana, Juliana Duarte; Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista “Júlio de Mesquita Filho”; Berchielli, Telma Teresinha; Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista “Júlio de Mesquita Filho”; Arcuri, Pedro Braga; Empresa Brasileira de Pesquisa Agropecuária, Setor Gado de Leite; Ribeiro, Andressa Ferreira; Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista “Júlio de Mesquita Filho”; Fiorentini, Giovani; Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista “Júlio de Mesquita Filho”; Canesin, Roberta Carrilho; Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista “Júlio de Mesquita Filho”.
Protozoa population, microbial synthesis efficiency and rumen degradability of dry matter and neutral detergent fiber in cattle fed on diets with different lipid rates were evaluated. Nine 16-month-old Nelore young bulls, cannulated in the rumen and duodenum, weighing 232 ± 35 kg, were used in the trial. Experimental design consisted of a 3 x 3 square in triplicate, comprising the following treatments: 2, 4 and 6% lipid in diet. In situ degradability was assessed by rumen incubation of corn silage, soybean, soybean meal and citrus pulp during 0, 3, 6, 12, 24, 48, 72 and 96h. The flow of microbial nitrogen and microbial efficiency were not influenced (p &gt; 0.05) by the inclusion of lipid levels in the diet. When the animals received diet with 4%...
Tipo: Pesquisa de campo e analises laboratoriais Palavras-chave: 5.04.00.00-2 (Zootecnia) degradability; Fat; Microorganisms; Ruminants; Soybean.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/12729
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Effects of feed restriction and forage:concentrate ratio on digestibility, methane emission, and energy utilization by goats R. Bras. Zootec.
Lima,Ana Rebeca Castro; Fernandes,Marcia Helena Machado da Rocha; Teixeira,Izabelle Auxiliadora Molina de Almeida; Frighetto,Rosa Toyoko Shiraishi; Bompadre,Thiago Francisco Ventoso; Biagioli,Bruno; Meister,Naomi Cristina; Resende,Kléber Tomás de.
ABSTRACT This study was carried out to to evaluate how feed restriction and different forage:concentrate ratios affect digestibility, methane emission (using the SF6 technique), and energy utilization of Anglo-Nubian goats. Fifteen (15) dry and non-pregnant Anglo Nubian goats, averaging 30±2.9 kg body weight, were used. The experiment was divided into two trials, the first of which was designed to study the effects of feed restriction (0% or ad libitum; 15% of feed restriction or equivalent to 85% of ad libitum intake; and 40% of feed restriction or equivalent to 60% of ad libitum intake) and the second, to study the effects of forage:concentrate (F:C) ratios (75:25, 54:46, and 25:75) in the diet. The sulfur hexafluoride (SF6) tracer gas method was used to...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Greenhouse gases; Ruminants; SF6.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200781
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