Effect of cutting interval on yield and quality of two Panicum maximum cultivars in Thailand

Hare, M. D.; Phengphet, Supaphan; Songsiri, Theerachai; Sutin, Naddakorn; Stern, Eduardo

doi:10.17138/tgft(1)87-89

Cited by 13 publications

(17 citation statements)

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“…Hare et al (2013) observed an increase in the FM with a reduction in grazing frequency in Mombasa and Tanzania areas, but the authors did not find the same effect for LBM. This was possibly due to the large frequency amplitude of heights studied by the authors compared to the sward height worked in this study.…”

Section: Resultsmentioning

confidence: 85%

Sward Structure and Herbage Accumulation of Massai Guineagrass Pastures Managed According to Pre-Grazing Heights, in the Northeast of Brazil

Neto¹,

Difante²,

Lana³

et al. 2017

JAS

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The forage sward height measurement is a practical and potential tool for grazing management. Thus, the objective of this study was to evaluate the structure of pasture and forage accumulation related to sward pre-grazing height of Panicum maximum cv. Massai, before being grazed by sheep. The study was conducted in the Federal University of Rio Grande do Norte, Macaíba, Brazil. The treatments were the pre-grazing sward heights at: 35, 40, 45 and 50 cm. The post-grazing height was 15 cm for all treatments. The interaction between the pre-grazing sward heights and grazing cycles was only statistically significant for light interception (LI) and leaf area index (LAI). The LI had linear and positive effect to the pre-grazing heights in only one of three grazing cycles, with approximately 1% increase in LI for each centimeter grown in the sward. The total forage mass had linear regression, every centimeter increased in height, there was a correspondent dry matter (DM) increase of 187 kg ha -1 in forage mass. There was a linear response between leaf blade mass and dead material with sward height. The post-grazing lowest LI was 29.42% at 42.05 cm high. The lowest amount of LI was 29.42% at 42.05 cm high. The minimum LAI was 0.69. The top DM and mineral matter (MM) accumulation rate were linear and had 58.32 and 20.46 kg ha -1 day -1 MS, respectively. Massai guineagrass grazed by sheep must be handled between 35 and 40 cm high at pre-grazing when associated with post-grazing height of 15 cm.

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Section: Resultsmentioning

confidence: 85%

Sward Structure and Herbage Accumulation of Massai Guineagrass Pastures Managed According to Pre-Grazing Heights, in the Northeast of Brazil

Neto¹,

Difante²,

Lana³

et al. 2017

JAS

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“…Hare et al (31,32) , informaron que el FDN de pastos del género Brachiaria (cultivares Mulato II, Cayman y la linea BRO2/ 1794), y de Panicum (Mombasa y Tanzania), fertilizados con NPK, evaluados a 4, 6, 9 y 12 semanas variaron entre 51.9 a 63.3 y 62.3 a yearly average of 13.7 ± 12.8 kg (27) . It is considered that growth differences between plants in small plots and grasslands are due to microenvironments originated by the different managements that are applied to the plants as a consequence of the grazing activity of the animals.…”

Section: Composición Químicamentioning

confidence: 99%

“…8 %). Hare et al (31,32) , reported that, NDF of Brachiaria (cultivars Mulato II, 68.0 %, respectivamente. En el presente estudio, el contenido de FDN se incrementó de la semana 3 a 12 en: 21.7, 9.3 y 6.0 %, en los ciclos 1 a 3.…”

Section: Chemical Compositionunclassified

“…En el presente estudio, el contenido de FDN se incrementó de la semana 3 a 12 en: 21.7, 9.3 y 6.0 %, en los ciclos 1 a 3. Esta variación es menor, respecto de los materiales evaluados por los autores citados previamente (31,32) .…”

Section: Chemical Compositionunclassified

“…Hare et al (31,32) (33) , para tres cultivares de Brachiaria brizantha (Marandú, Piatá y Xaraes), que promediaron 3.35 %, con diferencias en lignina en hojas (3.2 a 3.6 %) y en tallos (4.6 a 5.9 %). Los pastos cortados a edades tempranas mostraron altos valores de calidad, porque en esta fase de crecimiento, el efecto del clima no influye significativamente en la calidad de la planta (34) .…”

Section: Chemical Compositionunclassified

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Rendimiento y degradabilidad ruminal de materia seca y energía de diez pastos tropicales cosechados a cuatro edades

Mora

Castillo-Gallegos

Barragán

2016

Rev. Mex. Cienc. Pecu.

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RESUMENEl presente trabajo se realizó con el objetivo de determinar el rendimiento de materia seca (RMS), y la degradabilidad ruminal de la materia seca (MS) y la energía, de diez pastos de los géneros Brachiaria: B. brizantha (Insurgente), B. decumbens (Señal), B. humidicola (Chetumal), B. brizantha x B. ruzieziensis (Mulato I); Panicum: P. maximum cv. Mombasa, P. maximum cv. Guinea, P. maximum cv. Tanzania; y Pennisetum: P. purpureum cv. Taiwan, P. purpureum cv. Cuban king grass, P. purpureum cv. Purple king grass, a 3, 6, 9 y 12 semanas de rebrote, en tres ciclos de crecimiento. La degradabilidad ruminal de MS y energía se determinó a 48 h de incubación in situ. El RMS fue 3,037, 1,689 y 1,872 kg ha -1 , para Pennisetum, Brachiaria y Panicum (P<0.05). La PC disminuyó de 11.6 a 6.9 % (3 a 12 semanas), sin diferencias entre géneros. ABSTRACTThe objective of the study was to determine dry mater yield (DMY), and in situ ruminal degradable dry matter and energy of ten grasses of the genera Brachiaria: B. brizantha (Insurgente), B. decumbens (Señal), B. humidicola (Chetumal), B. brizantha x B. ruzieziensis (Mulato I); Panicum: P. maximum cv. Mombasa, P. maximum cv. Guinea, P. maximum cv. Tanzania; and, Pennisetum: P. purpureum cv. Taiwan, P. purpureum cv. Cuban king grass, P. purpureum cv. Purple king grass, at 3, 6, 9 and 12 wk of regrowth, in three evaluation cycles. DMY for Pennisetum, Brachiaria and Panicum was: 3,037, 1,689 and 1,872 kg ha -1 (P<0.05). CP concentration decreased from 11.6 to 6.9 % (3 to 12 wk), without differences among genera. Concentration (%) of NDF, ADF and LIG were: 72.1, 43.5 and 8.1 (Brachiaria); 73.0, 45.8 and 9.0 (Panicum); and 68.8, 44.4 and 9.1 % (Pennisetum), values were 68.1, 40.1 and 8.2 (at 3 wk); and 76.2, 49.7 and 9.5 (at 12 wk). The in situ DM degradability was: 70.0 % (Brachiaria), 65.8 % (Panicum) and 72.9 % (Pennisetum) and decreased from 71.7 to 62.9 % (from 3 to 12 wk). Gross energy (GE) preincubation, was 3,802, 3,756, and 3,608 kcal kg -1 DM, for Brachiaria, Panicum, and Pennisetum, with no changes due to age of regrowth. In situ ruminal energy degradability (as % of incubated GE) was: 55.6, 51.4, and 57.9 % for Brachiaria, Panicum; and Pennisetum. In conclusion, age of regrowth and genus affected the nutritive value of the evaluated grasses. INTRODUCCIONEn las regiones tropicales, los sistemas de producción bovina están basados en el pastoreo de gramas nativas (1) , cuya productividad varía en cantidad y calidad (2) , por lo que es importante la selección efectiva e introducción de pastos de alta calidad nutricional, y alta producción forrajera, adaptados a las condiciones locales de clima, suelo y manejo (3) .La edad del pasto al corte o pastoreo afecta la calidad y digestibilidad de las pasturas (4,5) , debido a un incremento en la proporción de pared celular respecto al contenido celular, así como en mayor cantidad de tallos y material muerto en la planta conforme ésta madura. Los pastos con baja digestibilidad retardan el paso del alimento a través del tracto di...

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Potential Thai grasses for bioethanol production

2014

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Effect of cutting interval on yield and quality of two Panicum maximum cultivars in Thailand

Cited by 13 publications

References 1 publication

Sward Structure and Herbage Accumulation of Massai Guineagrass Pastures Managed According to Pre-Grazing Heights, in the Northeast of Brazil

Sward Structure and Herbage Accumulation of Massai Guineagrass Pastures Managed According to Pre-Grazing Heights, in the Northeast of Brazil

Rendimiento y degradabilidad ruminal de materia seca y energía de diez pastos tropicales cosechados a cuatro edades

Potential Thai grasses for bioethanol production

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