Silagem de híbridos de sorgo associado a percentagens de concentrado no desempenho de novilhos

Restle, João; Missio, Régis Luís; Resende, P. L. P; Silva, N. L. Q; Vaz, Fabiano Nunes; Brondani, Ivan Luiz; Filho, Dari Celestino Alves; Kuss, Fernando

doi:10.1590/s0102-09352012000500023

Cited by 5 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This result differs from those obtained by other authors, who found that this variable frequently exhibited quadratic variation -with highest point for diets with 33% bulky material -and linear reduction, or remained constant as the proportion of silage in the diets increased (Missio et al, 2009;Restle et al, 2012). According to Restle et al (2012), although there is no consensus, dry matter intake tends to increase when the content of forage in the diets is greater than that of the concentrate; however, when the concentrate fraction exceeds the forage fraction, dry matter intake tends to reach the inflection point of the curve, decreasing because digestible energy intake is increased and the energy demands of the animals are met.…”

Section: Resultscontrasting

confidence: 93%

“…According to Roma Júnior et al (2008), the superior feed conversion found in dairy crossbred bulls is a consequence of the heterosis resulting from crossing zebu and taurine breeds. However, the similar feed conversions for the different proportions of 'Mulato II' grass silage observed in the present study were not reported by Restle et al (2012). These authors explain that the reduction of feed conversion in response to increased silage proportions is due to the reduced energy content in the diets, which leads to greater food intake in order to meet the demands related to weight gain.…”

Section: Resultssupporting

confidence: 81%

“…These results are not in agreement with those obtained by Missio et al (2009), who found a reduction in average daily gain as the proportion of corn silage in the diets of Charolais × Nellore bulls increased, which was attributed to decreased energy intake. Restle et al (2012) showed that the effect of silage proportion on animal performance is related to the quality of the used silage, i.e. : when the silage was of poor quality, the productive performance was reduced as the proportion of silage in the diets increased; but, when the silage had high quality, it was not altered.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Productive performance of confined young bulls fed proportions of 'Mulato II' grass silage in the diet

Missio¹,

Alexandrino²,

Silva³

et al. 2017

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The objective of this work was to evaluate the performance of young Nellore bulls and of young dual-purpose dairy bulls fed proportions of 'Mulato II' grass silage (400 and 100 g kg -1), in diets with high levels of concentrate, as well as to evaluate the cost of this feed. Sixteen young Nellore bulls and 16 young dairy crossbred bulls were used, with initial average weight of 380.69±10.45 and 376.94±17.16 kg, respectively, and average initial age of 24 months. A completely randomized experimental design was carried out in a 2x2 factorial arrangement. The highest silage proportion caused a 13% increase in dry matter intake (percentage of body weight) and a 19.7% decrease in dry matter digestibility of the diet, but it did not alter the intake of total digestible nutrients, nor the average daily gain or carcass characteristics. Nutrient intake and digestibility, average daily gain, and carcass characteristics (except conformation) did not change due to the genetic group of animals. Feed conversion was 18.3% better in young dairy bulls. In diets with high levels of concentrate, the proportion of 400 g kg -1 of 'Mulato II' grass silage, in comparison with that of 100 g kg -1, does not affect the productive performance, nor the main carcass characteristics of economic interest of confined young bulls, but reduces feeding costs.

show abstract

Section: Resultscontrasting

confidence: 93%

Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Productive performance of confined young bulls fed proportions of 'Mulato II' grass silage in the diet

Missio¹,

Alexandrino²,

Silva³

et al. 2017

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…2 Low sugarcane: 380 g kg -1 of sugarcane in the diets with 420 or 620 g kg -1 of BMB in the concentrate (dry matter basis). Restle et al (2012), when the roughage is of medium to low quality, but the energy level of the diets is not a limiting factor, DM intake tends to remain constant with the concentrate increase, which makes the results consistent. The higher crude protein intake obtained with the diets with the higher proportion of sugarcane can be attributed to animal selectivity.…”

Section: Discussionmentioning

confidence: 70%

Proportions of sugarcane and babassu mesocarp bran in diets for feedlot cattle

et al. 2017

View full text Add to dashboard Cite

The objective of this study was to evaluate the production performance of feedlot cattle fed diets containing chopped sugarcane ratios (580 or 380 g/kg of diet dry matter) as roughage and levels of inclusion of babassu mesocarp bran (BMB; 420 to 620 g/kg of concentrate dry matter). Twenty-four young Nellore bulls with 321±23 kg initial body weight, at 22 months of age, were used in a completely randomized experimental design with treatments in a 2 × 2 factorial arrangement and six replicates. Dry matter intake (21.71 g/kg of body weight), average daily gain (1.46 kg/day), and cold carcass weight (232.59 kg) were not changed by proportion of sugarcane or BMB level. The proportions of sugarcane and BMB levels did not change the apparent digestibility of the diets, except the digestibility of neutral detergent fiber, which was lower in the diet associating the lowest levels of sugarcane and BMB. Increasing proportions of sugarcane reduced subcutaneous fat thickness from 2.89 to 1.91 mm. Carcass commercial primal cuts were not affected by variation factors. Inclusion of babassu mesocarp bran enables the use of larger proportions of sugarcane as a result of the increased digestibility of the fiber fraction of feedlot cattle diets without changing the performance and main carcass traits of these animals.

show abstract

“…The reduction in DMI with the elevation in dietary density is well documented in the literature (KREHBIEL et al, 2006). However, it should be noted that, according to Restle et al (2012), DMI tends to increase with the inclusion of concentrate in the diet, while the proportion of silage (medium to high quality) is higher than that of concentrate. However, when the fraction of concentrate is higher than that of forage, according to these researchers, DMI tends to approach the inflection point of the curve, from which it decreases as result of the digestible energy intake and attendance of physiological energy of the animal.…”

Section: Resultsmentioning

confidence: 87%

Fatty acid profile of duodenal digesta and of meat of feedlot beef cattle fed diets containing different levels of concentrate

Missio

Menezes

Brondani

et al. 2019

SCA

View full text Add to dashboard Cite

The objective of this study was to evaluate the fatty acid profile of duodenal digesta (experiment I) and of meat of beef cattle (experiment II) fed diets containing different levels of concentrate (220, 400, 590 and 790 g of concentrate/kg of dry matter of the diets). The experiment I was conducted with four Charolais-Nellore steers (460 ± 18.2 kg of BW), with a T-shaped duodenal cannula, using a double 4 × 4 Latin square as an experimental design. In experiment II, 16 crossbred Charolais-Nellore young bulls (192.44 ± 18.2 kg of BW) were randomly distributed in the experimental treatments (220, 400, 590 and 790 g of concentrate/kg of dry matter of the diets). The diets were isonitrogenous (120 g of crude protein/kg of dry matter). The intramuscular fat content was used as a covariant for the statistical analysis of the meat fatty acid profile. The duodenal content of fatty acid C17:0 decreased with increase of concentrate levels, while its content in the meat presented a quadratic variation with the increase of the concentrate levels of the diets, being the lowest values observed for the diet with 400 g of concentrate. The duodenal content of fatty acid C18:1 trans-11 decreased, whereas the content of this fatty acid in the meat increased with the increase of the dietary concentrate levels. The increase in the level of concentrate reduced the content of polyunsaturated fatty acids C18:3 n-3, C20:3 n-6, C20:4 n-6, and C20:5 n-3 EPA in both the duodenal digesta and meat. No difference was observed in the n-6/n-3 fatty acids ratio (mean of 13.96) of the meat between diets. The elevation of the level of concentrate in confinement diets reduces the nutraceutical quality of the meat of Charolais-Nellore young bulls slaughtered at 14-16 months of age due to the reduction of the polyunsaturated fatty acids content important for human health.

show abstract

Silagem de híbridos de sorgo associado a percentagens de concentrado no desempenho de novilhos

Cited by 5 publications

References 15 publications

Productive performance of confined young bulls fed proportions of 'Mulato II' grass silage in the diet

Productive performance of confined young bulls fed proportions of 'Mulato II' grass silage in the diet

Proportions of sugarcane and babassu mesocarp bran in diets for feedlot cattle

Fatty acid profile of duodenal digesta and of meat of feedlot beef cattle fed diets containing different levels of concentrate

Contact Info

Product

Resources

About