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| Frota,Marcílio Nilton Lopes da; Carneiro,Maria Socorro de Souza; Pereira,Elzânia Sales; Berndt,Alexandre; Frighetto,Rosa Toyoko Shiraishi; Sakamoto,Leandro Sannomiya; Moreira Filho,Miguel Arcanjo; Cutrim Júnior,José Antônio Alves; Carvalho,Geraldo Magela Côrtes. |
| Abstract: The objective of this work was to evaluate the quality of pasture and enteric methane (CH4) emission of Curraleiro Pé-duro x Nellore cattle in a pasture of Megathyrsus maximus 'Mombaça', both in full sun and in a consortium with babassu palms (Attalea spp.) in the Amazonian biome. The experimental design was completely randomized, with six steers per system, and the evaluations were done during the dry period (2015) and rainy period (2016). In comparison to forage in the full sun system, forage in the silvopastoral system showed, in the dry period, higher levels of crude protein, ether extract, total digestible nutrient, and in vitro digestible organic matter, and lower levels of dry matter, neutral detergent fiber, and total carbohydrate (TCHO).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: CH4; Curraleiro Pé-duro; Greenhouse gases; Livestock farming; Nellore. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001101099 |
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| Gimenes,Flávia Maria de Andrade; Silva,Sila Carneiro da; Fialho,Cleunice Auxiliadora; Gomes,Marcelo Barcelo; Berndt,Alexandre; Gerdes,Luciana; Colozza,Maria Tereza. |
| O objetivo deste trabalho foi avaliar metas de manejo para capim-marandu (Urochloa brizantha cv. Marandu) submetido a pastejo rotativo e a doses de nitrogênio, de janeiro de 2009 a abril de 2010. Os tratamentos consistiram da combinação de duas frequências de pastejo (altura pré-pastejo de 25 e 35 cm) e de duas doses de fertilizante nitrogenado (50 e 200 kg ha-1 por ano) em delineamento de blocos ao acaso com arranjo fatorial 2x2 e quatro repetições. A altura de pós-pastejo estipulada foi de 15 cm. Maiores valores de ganho de peso médio por animal por dia (0,629 e 0,511 kg dia-1) e por hectare (886 e 674 kg ha-1), bem como de taxa de lotação (3,13 e 2,85 UA ha-1), foram observados nos pastos manejados com altura pré-pastejo de 25 cm. A aplicação de 200 kg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Urochloa brizantha; Altura do dossel; Altura pré-pastejo; Altura pós-pastejo; Manejo do pastejo; Taxa de lotação. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000700011 |
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| Carvalho,Isabela Pena Carvalho de; Fiorentini,Giovani; Berndt,Alexandre; Castagnino,Pablo de Souza; Messana,Juliana Duarte; Frighetto,Rosa Toyoko Shiraishi; Reis,Ricardo Andrade; Berchielli,Telma Teresinha. |
| ABSTRACT The objective of this study was to evaluate the effect of lipid sources on voluntary intake, digestibility, performance, and CH4 emission of Nellore steers grazing Brachiaria brizantha cv. Xaraés forage in the dry season. Forty-five Nellore steers with average weight of 442±34 kg were alloted into one of the five treatments: without additional fat; with palm oil; with linseed oil; with protected fat; and with whole soybeans. The supplements were provided daily and quantities were adjusted to 1% of body weight and diets were formulated in accordance with the Cornell Net Carbohydrate and Protein System. The experimental design was completely randomized with five treatments and two replications. There were no effects on dry matter, organic matter,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Linseed oil; Palm oil; Protected fat; Supplementation; Whole soybeans. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200760 |
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| Mercadante,Maria Eugênia Zerlotti; Caliman,Ana Paula de Melo; Canesin,Roberta Carrilho; Bonilha,Sarah Figueiredo Martins; Berndt,Alexandre; Frighetto,Rosa Toyoko Shiraishi; Magnani,Elaine; Branco,Renata Helena. |
| Feed intake and average daily gain (ADG) in Nellore cattle were determined to calculate residual feed intake in two performance tests: first during the growth phase (RFIgrowth) and then during a measurement of the methane emission phase (RFImet). During the RFIgrowth test, 62 males and 56 females were classified as low-, medium-, and high-RFI. Enteric methane emission was measured in 46 animals; 23 males used for RFImet measurement plus 23 females (22 low-RFIgrowth and 24 high-RFIgrowth). Diet consisted of Brachiaria brizantha cv. Marandu hay (445 g/kg DM) and concentrate (555 g/kg DM). During the RFIgrowth and RFImet phases, DMI was lower in the animals with low RFI, with no difference in ADG. Residual feed intake was -0.359 and 0.367 kg DM/d for low- and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Enteric methane production; Feed efficiency; Performance; Sulfur hexafluoride. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000700255 |
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| Nuñez,Amoracyr José Costa; Caetano,Mariana; Berndt,Alexandre; Demarchi,João José Assumpção de Abreu; Leme,Paulo Roberto; Lanna,Dante Pazzanese Duarte. |
| Zebu cattle fed high concentrate diets may present inconsistent performance due to the occurrence of metabolic disorders, like acidosis. The isolated use of ionophores and virginiamycin in high grain diets can improve animal performance and reduce the incidence of such disorders, but recent studies suggested that their combination may have an additive effect. Thus, 72 Nellore steers, 389 ± 15 kg initial body weight (BW), were confined and fed for 79 days to evaluate the combination of virginiamycin and salinomycin on performance and carcass traits. Animals were allocated to a randomized complete block design by BW, in a 2 × 2 factorial arrangement of treatments, with two concentrate levels (73 and 91 %) and two virginiamycin levels (0 and 15 mg kg-1), and... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000400002 |
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| Lima,Josiane Aparecida de; Gavioli,Ivana Lícia de Campos; Barbosa,Cristina Maria Pacheco; Berndt,Alexandre; Gimenes,Flávia Maria de Andrade; Paz,Claudia Cristina de Paro; Cunha,Eduardo Antonio da. |
| The objective of this study was to evaluate the performance of sheep fed with diets consisting of different proportions of soybean silage and sugarcane tip silage. Twenty four lambs from Morada Nova breed were used, with an average age of 75 days and average weight of 16.98±2.62kg. The following diets were evaluated: T1 = 20% sugarcane tops silage + 80% concentrate, T2 = 20% sugarcane tops silage + 30% soybean silage + 50% concentrate, T3 = 20% sugarcane tops silage + 60% soybean silage + 20% concentrate. The experimental design was a randomized complete block with eight repetitions and each animal was a repetition. It was evaluated the intake of dry matter, organic matter, ash, crude protein, ether extract, neutral detergent fiber, acid detergent fiber,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed conversion; Feed intake; Glycine max; Saccharum officinarum; Weight gain. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000800022 |
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