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| Olivo,Clair Jorge; Agnolin,Carlos Alberto; Aguirre,Priscila Flôres; Bem,Cláudia Marques de; Araújo,Tiago Luís da Ros de; Diehl,Michelle Schalemberg; Meinerz,Gilmar Roberto. |
| The objective was to evaluate elephant grass (Pennisetum purpureum Schum.) pastures, under the agroecological and conventional systems, as forage mass and stocking rate. In the agroecological system, the elephant grass was established in rows spaced by 3.0 m from each other. During the cool season ryegrass (Lolium multiflorum Lam.) was established between these rows, which allowed the development of spontaneous growth species during the warm season. In the conventional system the elephant grass was established singularly in rows spaced 1.4 m from each other. Organic and chemical fertilizers were applied at 150 kg of N/ha/year with in the pastures under agroecological and conventional systems, respectively. Lactating Holstein cows which received 5.0 kg/day... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactating cows; Lolium multiflorum; Pennisetum purpureum; Production systems; Rotational stocking. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000600289 |
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| Morenz,Mirton José Frota; Silva,José Fernando Coelho da; Aroeira,Luiz Januário Magalhães; Deresz,Fermino; Vásquez,Hernán Maldonado; Lopes,Fernando César Ferraz; Paciullo,Domingos Sávio Campos; Tedeschi,Luis Orlindo. |
| The Cornel Net Carbohydrate and Protein System model version 5.0 was assessed as for its prediction of dry matter intake and milk production of grazing lactating Holstein × Zebu cows. Eight lactating cows grazing elephant grass (Pennisetum purpureum, Schum., cv. Napier) were used in two experiments of 30 days each. The experimental design was of randomized blocks (subplots). Dry matter intake was estimated using the chromium oxide and in vitro dry matter digestibility techniques. The estimated dry matter intake was compared with the values predicted by the model. Extrusa samples of the elephant grass pasture were obtained from a cow with esophageal fistula during nine days in each experimental period. Carbohydrate and nitrogenous fractions were analyzed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chromium oxide; Elephant grass; Lactating cows; Rotational stocking. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200024 |
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| Silva, Rodes Angelo Batista da; Pandorfi, Héliton; Almeida, Gledson Luiz Pontes de; Silva, Marcos Vinícius da. |
| The aim of this study was to employ the principal component technique to physiological data and environmental thermohygrometric variables correlated with detection of clinical and subclinical mastitis in dairy cattle. A total of 24 lactating Girolando cows with different clinical conditions were selected (healthy, and with clinical or subclinical mastitis). The following physiological variables were recorded: udder surface temperature, ST (°C); eyeball temperature, ET (°C); rectum temperature, RT (°C); respiratory frequency, RF (mov. min-1). Thermohygrometric variables included air temperature, AirT (°C), and relative humidity, RU (%). ST was determined by means of thermal images, with four images per animal, on these quarters: front left side (FL), front... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Multivariate analysis; Images; Lactating cows. |
| Ano: 2020 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46394 |
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| Anjos, Amanda Nunes Assis dos; Olivo, Clair Jorge; Sauter, Caroline Paim; Silva, Aline Rodrigues; Santos, Fabiene Tomazetti dos; Seibt, Daiane Cristine. |
| Three grazing systems with Coastcross-1 bermuda grass (CC) + 100 kg N ha-1 year-1 + common vetch; CC + 100 kg N ha-1 year-1 + arrowleaf clover; and CC + 200 kg N ha-1 year-1 were evaluated. Thirteen grazing cycles were performed during the experimental period (313 days), with two, five, four and two cycles respectively in winter, spring, summer and fall. Lactating Holstein cows were used in the evaluation. Daily accumulation rate, forage production, rate of forage disappearance, agronomic intake, grazing efficiency, herbage allowance and stocking rate were evaluated. Mean rates of forage yield and stocking rate were 20.8; 17.6 and 19.7 t DM ha-1 and 7.0; 6.8 to 6.8 animal units ha-1 day-1 for the respective forage systems. The mixture Coastcross-1 plus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.00.00-2; 5.04.04.00-8 Cynodon; Lactating cows; Stocking rate; Trifolium vesiculosum; Vicia sativa.. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/31114 |
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| Steinwandter, Edilene; UFSM - Universidade Federal de Santa Maria; Olivo, Clair Jorge; UFSM; Santos, Juliano Costa dos; UFSM; Araújo, Tiago Luis da Ros de; UFSM; Aguirre, Priscila Flores; UFSM; Diehl, Michelle Schalemberg; UFSM. |
| O objetivo desta pesquisa foi avaliar dois sistemas forrageiros, constituídos por capim-elefante, azevém, trevo branco ou amendoim forrageiro e espécies de crescimento espontâneo, quanto às taxas de acúmulo e de desaparecimento de MS. Para avaliação utilizaram-se quatro piquetes, com 0,25 ha cada um, com capim-elefante estabelecido em linhas afastadas a cada 4 m. No período hibernal, entre as linhas do capim-elefante, fez-se o estabelecimento do azevém; em dois piquetes foi semeado o trevo branco e nos demais se preservou o amendoim forrageiro. O delineamento experimental utilizado foi inteiramente casualizado. Para a determinação das taxas de acúmulo e de desaparecimento de MS, avaliaram-se as massas de forragem de pré e pós-pastejo. Foram avaliadas a... |
| Tipo: Pesquisa de campo |
Palavras-chave: Ciências Agrárias; Agronomia; Zootecnia Arachis pintoi; Lolium multiflorum; Pennisetum purpureum; Trifolium repens; Vacas em lactação Produçao animal extensão rural forrageicultura Arachis pintoi; Lolium multiflorum; Pennisetum purpureum; Trifolium repens; Lactating cows. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6238 |
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