Produção e composição química-bromatológica de Tifton 85 (Cynodon dactylon L. Pers) sob pastejo contínuo no período hibernal

Marchesan, Renato; Paris, Wagner; Ziech, Magnos Fernando; Prohmann, Paulo Emílio Fernandes; Zanotti, Josinaldo; Hartmann, Diego Vicente

doi:10.5433/1679-0359.2013v34n4p1935

Cited by 13 publications

(14 citation statements)

References 8 publications

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“…NERES et al, 2012;MARCHESAN et al, 2013). Many studies have reported that CP content increased with progressive increases of N application, and this study demonstrated a linear relationship between them in the 2nd, 3rd, and 4th cuts (Figure 14).…”

Section: Resultssupporting

confidence: 61%

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Tifton 85 grass responses to different nitrogen levels and cutting intervals

Taffarel

Mesquita

Castagnara

et al. 2016

SCA

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The objective of this study was to evaluate the influence of five levels of N and two regrowth intervals on the structural, productive, and nutritional characteristics of Tifton 85 grass (Cynodon spp). The experiment was conducted in a hay production field at the State University of West Paraná, planted in 2004 with Cynodon spp. cv. Tifton 85. The experiment was established in a randomized block design with factorial treatments of five N fertilization amounts (0, 25, 50, 75 and 100 kg ha -1 cut -1 ) applied as urea after each cut, and two regrowth intervals (28 and 35 d), with four replicates. N application promoted changes in plant structure, such as increased canopy height, stem length, leaf elongation rate, and dry mass (DM) production. The greatest N use efficiency, considering the four harvests, occurred in the plot with 25 kg N ha -1 cut -1 at the 35-d interval, with a production of 13.79 kg DM kg -1 of N applied. A nutritional analysis indicated that 100 kg ha -1 of N cut -1 promoted higher crude protein (CP) at 28 d, with the highest concentration observed in the fourth cut (208.2 g kg -1 DM) and the lowest in the second cut (140.12 g kg -1 DM). The content average in the four cuts for CP and LIG at 28 days of regrowth was 175.85 and 104.33 kg -1 g MS and at 35 days of regrowth interval was of 164.45 and 118.65 g kg -1 DM, respectively. No differences were found between regrowth intervals in the contents of mineral matter and acid detergent fiber (ADF). Environmental factors including the wide variation in precipitation (greater than 200 mm between the peak in December 2010 and the lowest in March 2011) greatly influenced Tifton 85 grass production, affecting DM and the nutritional value of the forage in each cut. Key words: Biomass. Forage quality. Grazing. Management. Persistence. Stocking. ResumoO objetivo do trabalho foi avaliar a influência de cinco doses de nitrogênio (N) em duas idades de rebrota no capim Tifton 85 (Cynodon spp.) sobre as características estruturais, produtivas e na composição bromatológica. O experimento foi instalado no campo de produção de feno da UNIOESTE, campus de Marechal Cândido Rondon. O delineamento experimental foi em blocos casualizados em esquema fatorial 5x2, sendo cinco doses de nitrogênio (0, 25, 50, 75 e 100 kg ha -1 ) aplicados em cada corte, aplicadas na forma de uréia, duas idades de rebrota (28 e 35 dias) com quatro repetições e quatro cortes.

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Section: Resultssupporting

confidence: 61%

“…A LSR of approximately 1.2 contains about two thirds of total DM is available in leafs. As tillers age, LSR decreases owing to stem elongation; the stem has a higher fiber content and less protein (CUTRIM JUNIOR et al, 2014;MARCHESAN et al, 2013). However, LSR also varies with the season (MOREIRA et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Tifton 85 grass responses to different nitrogen levels and cutting intervals

Taffarel

Mesquita

Castagnara

et al. 2016

SCA

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“…Marchesan et al (2013), assessing the production and chemical composition of Tifton 85 under continuous grazing during the winter, observed mean CP levels of 14.34%, similar to that obtained during the winter in the present study.…”

Section: Forage Production and Qualitysupporting

confidence: 69%

“…Considering that most Brazilian milk production occurs on pastures, where feed is less expensive and management more economical, the provision of good-quality pastures can have a significant impact on a small rural property (Quaresma et al, 2011). Marchesan et al (2013) reported that for satisfactory animal behavior, feed with a nutritional value adequate to meet the needs of production animals must be offered, thus optimizing the production system and obtaining satisfactory growth rates.…”

Section: Correlation Of Forage Production and Quality With Milk Produmentioning

confidence: 99%

Production, Forage Quality, and Performance of Holstein Cows under Intermittent Grazing on Tifton 85

Silva¹,

Costa²,

Silva³

et al. 2017

JAS

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Tropical forage grasses compose the base diet of the Brazilian cattle herd due to their low production cost, high production potential, and good adaptation to various Brazilian ecosystems. In recent years, the search has intensified for alternatives that increase the yield in pasture milk production systems. Thus, the present study evaluated the production and quality of Tifton 85 grass in relation to the production parameters (e.g. greater leaf: stem ratio), and milk quality of Holstein cows in an intermittent grazing system during different seasons of the year. The experiment was conducted at the Córrego da Ponte Farm in Santa Helena de Goias, Goias, Brazil, from April 2014 to March 2015. The experiment used a completely randomized design with nine replicates and the four seasons (fall, winter, spring, and summer) as treatments. The Holstein cows had a live weight of 560±36.8 kg and averages four years of age. The grazing method used was a mob-stocking, with one day of grazing and 19 days of rest. The results showed that Tifton 85 was efficient regarding production parameters (total dry mass) and forage quality (IVDMD, NDF, ADF). The milk production was satisfactory during the fall, spring, and summer. The forage showed limited production during the winter, due the highest NDF, ADF levels and lower IVDMD (P < 0.05), which was directly reflected in the milk yield, fat, protein and lactose (P < 0.05). A reduction in the stocking rate or an increase in the number of paddocks is advisable during the winter to maximize milk production without compromising forage development. The correlation data showed the importance of consuming better-quality forage to increase milk production without compromising the levels of milk solids.

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“…The Cynodon genus stands out in dairy cattle production, since it has a high forage production potential, being able to surpass 25,000 kg -1 ha -1 year -1 of dry matter , with good nutritional value, with crude protein content values exceeding 11% of the dry matter (DE MATOS et al, 2013;MARCHESAN et al, 2013;SANCHES et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Productivity and Nutritive Value of Tifton 85 in Summer, With and Without Irrigation Under Different Nitrogen Doses

Sanches¹,

Gomes

Rickli

et al. 2017

Eng. Agríc.

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ABSTRACT:The pasture irrigation has expanded, mostly in small areas in order to boost the production system, along with the use of soil improvement techniques and high-productivity grasses. Thus, this study, carried out on a small dairy farm property, aimed to evaluate the productivity, botanical composition and nutritive value of Tifton 85 with different nitrogen (N) doses, in the presence and absence of irrigation. The experimental design was a randomized block in a split-plot design with four replications, plots Non-irrigated and Irrigated. The subplots consisted of nitrogen doses: 25 kg ha -1 cycle -1 of N, 50 kg ha -1 cycle -1 of N, 75 kg ha -1 cycle -1 of N and 100 kg ha -1 cycle -1 of N. The irrigation increased the productivity in an average of 3,626.5 kg ha -1 cycle -1 , with higher leaf stem ratio of 1.3, increasing the crude protein content of the pasture. The productivity responded quadratically to nitrogen fertilization with increases up to 84 kg N ha -1 cycle -1 with slight linear decrease of dead matter. There were linear increments of crude protein and digestibility "in vitro" of dry matter in function of applied nitrogen.

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Produção e composição química-bromatológica de Tifton 85 (Cynodon dactylon L. Pers) sob pastejo contínuo no período hibernal

Cited by 13 publications

References 8 publications

Tifton 85 grass responses to different nitrogen levels and cutting intervals

Tifton 85 grass responses to different nitrogen levels and cutting intervals

Production, Forage Quality, and Performance of Holstein Cows under Intermittent Grazing on Tifton 85

Productivity and Nutritive Value of Tifton 85 in Summer, With and Without Irrigation Under Different Nitrogen Doses

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