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| Joaquín Cancino, Santiago. |
| El objetivo del estudio fue determinar la producción estacional y anual de forraje, composición morfológica, características estructurales y dinámica de ahijamiento de praderas de pasto Insurgente, Toledo, Tanzania y Mombaza, cosechados a tres frecuencias de corte (FC; 4, 5 y 6 semanas), durante las épocas de nortes, sequía y lluvias. Se utilizó un diseño de bloques completos al zar, con cuatro repeticiones y arreglo de tratamientos en parcelas divididas, donde la parcela mayor fueron los cultivares y la menor las frecuencias de corte. Los cultivares se sembraron a distancia de 50 x 50 cm entre plantas y surcos, respectivamente. El tamaño de parcelas fue de 10 m2. El área de muestreo fueron los dos surcos centrales, los cuales se dividieron en 3... |
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Palavras-chave: Pastos tropicales; Defoliación; Acumulación de forraje; Ahijamiento; Tropical grasses; Defoliation; Herbage accumulation; Tillering; Ganadería; Doctorado. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2349 |
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| Cruz Hernández, Aldenamar. |
| El objetivo de la investigación fue determinar el rendimiento de materia seca, tasa de acumulación neta de forraje (TANF), dinámica de tallos, peso por tallo, recambio de tejido y valor nutritivo del pasto Mulato a diferente manejo de pastoreo. Se utilizaron 18 parcelas de 12.5 x 8 m, distribuidas aleatoriamente en un diseño de bloques al azar con arreglo factorial 3 x 2 (F: 14, 21, 28 días; I: 9-11, 13-15 cm de altura). El pasto Mulato, presentó mayor acumulación de forraje, aparición de tallos y recambio de tejido foliar en la época de lluvias y nortes. En Mulato, con pastoreo cada 28 días, a intensidad de 13-15 cm se obtuvo mayor acumulación de forraje (6732 kg MS ha-1), TANF (47 kg MS ha-1 dia-1) y altura de planta (35 cm), con una proporción de... |
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Palavras-chave: Mulato; Acumulación de forraje; Dinámica de tallos; Recambio de tejido; Valor nutritivo; Frecuencia e intensidad de pastoreo; Herbage accumulation; Tillering dynamic; Tissue turnover; Nutritive value; Grazing frequency and intensity; Doctorado; Ganadería. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/332 |
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| Difante,Gelson dos Santos; Nascimento Júnior,Domicio do; Euclides,Valéria Pacheco Batista; Silva,Sila Carneiro da; Barbosa,Rodrigo Amorim; Gonçalves,Wellington Velásquez. |
| The objective of this work was to evaluate the sward structure and nutritive value of Panicum maximum Jacq. cv. Tanzânia subjected to rotational stocking managements characterised by a common pre-grazing condition of 95% canopy light interception (LI) and two post-grazing residues, 25 and 50 cm. Treatments (95/25, 95/50 - LI/residue) were assigned to experimental units (groups of six 2500 m² paddocks per treatment) according to a complete randomised block design, with two replications. The variables measured corresponded to: canopy light interception, pre and post-grazing sward height, herbage mass and pre and post-grazing morphological composition, herbage bulk density, herbage accumulation and nutritive value (including to IVOMD) of the morphological... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grazing management; Herbage accumulation; Panicum maximum; Post-grazing height. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000100002 |
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| Euclides,Valéria Pacheco Batista; Montagner,Denise Baptaglin; Barbosa,Rodrigo Amorim; Valle,Cacilda Borges do; Nantes,Nayana Nazareth. |
| ABSTRACT The objective of the present study was to evaluate live weight gain per animal and per area and its relationship with the characteristics of pastures of Brachiaria brizantha cv. Paiaguás and Piatã. A randomized blocks experimental design was used, with two treatments and six replicates. The experimental area was 8.0 ha, divided into twelve paddocks of 0.67 ha. The grazing method used was continuous stocking, with variable stocking rate. Three tester steers were used per paddock. Sward heights were measured once a week, and the stocking rate (SR) was adjusted using regulator steers to maintain the sward height at 30 cm. Pasture samples were collected once a month, and herbage accumulation rate (HAR), percentage of leaves (PL), leaf:stem ratio... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Canopy structure; Herbage accumulation; Nutritive value; Stocking rate. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000300085 |
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| Braga,Gustavo José; Pedreira,Carlos Guilherme Silveira; Herling,Valdo Rodrigues; Luz,Pedro Henrique de Cerqueira; Lima,César Gonçalves de. |
| In ruminant-forage systems herbage allowance (HAL) has a major impact on grazing intensity and sward structure, affecting animals, plants, and ultimately, pasture yield. Data on HAL responses of tropical cultivated pastures are scarce and this information may be useful in optimizing pasture utilization. The objective of this study was to describe and contrast sward structure and herbage accumulation responses of 'Marandu' palisadegrass [Brachiaria brizantha (A.Rich.) Stapf] pastures to HAL during two grazing seasons (warm-rainy season of 2003 and 2004). Treatments were four daily HAL levels, 5, 10, 15 and 20 kg herbage mass per 100 kg live weight (%) in a rotational stocking system with 35 days of grazing cycle (28-day rest; 7-d grazing). Post-graze swards... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbage accumulation; Sward height; Light interception; Forage mass. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000200003 |
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