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| Vilela,Márcio da Silva; Ferreira,Marcelo de Andrade; Azevedo,Marcílio de; Farias,Iderval; Torres,Luiz Carlos Leal; Guimarães,Amanda Vasconcelos. |
| The aim of this study was to evaluate the effect of the manner in which diet is supplied and spineless cactus forage is processed on intake, nutrient digestibility, milk production and composition, concentration of plasma urea nitrogen (PUN) in the milk urea nitrogen (MUN) and production of microbial protein in Holstein cows in lactation. Eight cows (453 ± 75.8 kg) yielding 14 kg milk/day were allotted to a factorial design, with two manners of cactus processing (knife-chopped or forage machine) and two diet supplies (separate concentrate or total mixed ration). Intakes of dry matter, organic matter, neutral detergent fiber and total digestible nutrients were lower when cactus was knife-chopped. Digestibility, milk production and fat and protein yield did... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Milk production and composition; Opuntia fícus indica Mill; Purine derivatives; Semi-arid; Total mixed ration. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001200027 |
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| Saraiva,Carla Aparecida Soares; Gonzaga Neto,Severino; Queiroz,Maria Fernanda Soares; Henriques,Lara Toledo; Saraiva,Edilson Paes; Albuquerque,Rômulo Pontes de Freitas; Fonseca,Vinicius de França Carvalho; Nascimento,George Vieira do. |
| This experiment was carried to evaluate the effect of forage cactus with different fiber sources (elephant grass hay [EGH], corn straw [CS], hay of cassava shoots [HCS], fresh sugarcane bagasse [FSB], and hydrolyzed sugarcane bagasse [HSB]) on intake, apparent digestibility and macrobiotic protein production of cows. Five cows with 265 kg average body weight, 4.95 kg average daily milk yield and 5.22 kg 4% fat-corrected milk yield were randomly allocated to a 5 × 5 Latin square design. The animals fed cactus associated with CS, EGH and HCS showed higher intake of DM and nutrients. However, regarding the digestibility, diets with sugarcane bagasse showed higher digestibility compared with those with CS and hay. For microbial protein, the excretion of purine... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nopalea cochenillifera; Purine derivatives; Roughage; Zebu. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001000530 |
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| Silva, Ádler Carvalho da; Universidade Estadual do Sudoeste da Bahia; Figueiredo, Mauro Pereira de; Universidade Estadual do Sudoeste da Bahia; Bonomo, Paulo; Universidade Estadual do Sudoeste da Bahia; Pereira, Mara Lúcia Albuquerque; Universidade Estadual do Sudoeste da Bahia; Luz, Yann dos Santos; Universidade Estadual do Sudoeste da Bahia; Santos, Edileusa de Jesus; Universidade Estadual do Sudoeste da Bahia. |
| Current experiment evaluated the effect of replacement of full corn meal by dehydrated ground cassava roots at levels 0%, 25%, 50%, 75% and 100% in experimental supplements for lactating cows grazing on irrigated and fertilized tropical pastures. Ten Holstein cows were divided into two 5 x 5 Latin squares, with average initial 150 days of lactation, milk production 22±3.30 kg day-1 at the beginning of experiment and initial body weight of 603±65 kg. Cows were maintained on pasture consisting of elephant grass (Pennisetum purpureum, Schum) cultivar Pioneiro, intercropped with Tifton 85 (Cynodon nlemfuensis), fertilized with 600 kg nitrogen per hectare year-1. There was no significant difference (p > 0.05) between the substitution levels of corn meal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências agrárias; Zootecnia; Nutrição e Alimentação Animal; Avaliação de Alimentos para Animais microbial nitrogen; Purine derivatives; Urea nitrogen plasma. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22161 |
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| Lima, Hellen Leles; Universidade Federal da Grande Dourados; Goes, Rafael Henrique de Tonissi e Buschinelli de; Universidade Federal da Grande Dourados; Oliveira, Euclides Reuter de; Universidade Federal da Grande Dourados; Gressler, Maria Gizelma de Menezes; Universidade Federal da Grande Dourados; Brabes, Kelly Cristina da Silva; Universidade Federal da Grande Dourados; Gabriel, Andrea Maria de Araújo; Universidade Federal da Grande Dourados. |
| Four steers in individual paddocks with Marandu grass (B. Brizantha) in 4x4 square design were used to evaluate sunflower crushed supplementation in pasture-grazing animals on nitrogen balance and microbial protein synthesis. Supplements at 6 g kg-1 body weight comprised corn, soybean meal, and mineral and soybean meal substituted at proportions 0, 20, 40 and 60%. Diet contained averages 6.79, 6.96, 7.10 and 6.87% nitrogen respectively for substitution levels 0, 20, 40 and 60%. The inclusion of sunflower crushed (SC) increased nitrogen intake and fecal excretion of nitrogen while providing a positive balance. Animals’ plasma urea concentration supplemented with SC was 28.13% lower than that of supplemented animals without SC. SC inclusion did not change... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.04.01-6 creatinine; Microbial efficiency; Plasma urea; Purine derivatives; Urea Creatinine; Microbial efficiency; Plasma urea; Purine derivatives; Urea. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18654 |
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| Castañeda, Roman David; UEM; Branco, Antonio Ferriani; UEM; Coneglian, Sabrina Marcantonio; UEM; Barreto, Julio Cesar; UEM; Granzotto, Fernanda; UEM; Teixeira, Silvana; UEM. |
| Foram utilizados cinco bovinos machos, castrados, da raça Holandesa Preta e Branca, com 450 kg de peso vivo em um delineamento quadrado latino 5 x 5, sendo os tratamentos cinco níveis de substituição, 0, 25, 50, 75 e 100% de ureia por cloreto de amônio, como fontes de nitrogênio não-proteico da dieta. Houve redução linear (p < 0,05) na ingestão e no fluxo fecal, além de aumento na digestibilidade da MS, MO, PB, FDN e EE com a inclusão do cloreto de amônio na dieta. A inclusão de cloreto de amônio na dieta influenciou de forma quadrática (p < 0,05) o pH da urina, aumentou (p < 0,05) o volume urinário assim como a excreção de ácido úrico. Os tratamentos não influenciaram (p > 0,05) a excreção de alantoína e de derivados de purinas na urina,... |
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Palavras-chave: 5.04.03.00-1 derivativos de purina; Fermentação ruminal; Ingestão; Nitrogênio não-proteico; Ruminantes; Sais aniônicos anionic salts; Intake; Non-protein nitrogen; Purine derivatives; Ruminal fermentation; Ruminants. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/5938 |
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