Ganho de peso vivo e fermentação ruminal em novilhos mantidos em pastagem cultivada de clima temperado e recebendo diferentes suplementos

Silveira, Magali Floriano da; Kozloski, Gilberto Vilmar; Brondani, Ivan Luiz; Filho, Dari Celestino Alves; Restle, João; Leite, Daniel Terra; Metz, Patrícia Alessandra Meneguzzi; Silveira, Sales Ramiro Lopes da

doi:10.1590/s0103-84782006000300026

Cited by 8 publications

(7 citation statements)

References 11 publications

(8 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…High content of pasture TDN is particularly associated with the amount of ether extract and the low neutral detergent fiber obtained in samples of grazing simulations, which are in agreement with data reported in the literature (Silveira et al, 2006;Rodrigues et al, 2002).…”

Section: Resultssupporting

confidence: 90%

Production parameters and forage loss of oat and rye grass pastures managed with beef heifers fed diets with energy supplementation

et al. 2012

Self Cite

View full text Add to dashboard Cite

-Production parameters of intercropped pastures of oat and rye grass managed with beef heifers supplemented with brown rice meal and/or protected fat were evaluated. Twenty-eight Charolais × Nellore crossbred heifers at initial average age of 18 months and initial average live weight of 274.9 kg were utilized in the experiment. Animals were kept on oat + rye grass pastures and Pasture intake increased throughout the periods. Forage mass and support capacity of the animal did not differ between treatments, presenting means of 1245.02 kg of dry matter/ha and 882 kg of live weight/ha, respectively. Stoking rate, forage loss and pasture intake were not affected by the treatments. Supplementation of beef heifers with rice meal and/or protected fat did not change production parameters of oat + rye grass pastures or pasture intake. Increase in daily accumulation rate of dry matter and supporting capacity of the animals increases forage losses.

show abstract

Section: Resultssupporting

confidence: 90%

Production parameters and forage loss of oat and rye grass pastures managed with beef heifers fed diets with energy supplementation

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…For the same reason, the total intake of fatty acids was similar among animals fed grass silage diet or conventional diet. The rye grass is characterized by having high levels of lipids, Silveira et al (2006) and this is even higher than values found in dry sorghum grain. The flows of DM and total fatty acids in the duodenum were not affected by diets.…”

Section: Resultsmentioning

confidence: 86%

Profile of ingested fatty acids and in the duodenal digest of steers fed different diets

et al. 2010

Self Cite

View full text Add to dashboard Cite

-It was evaluated in this study the effect of the type of the diet on duodenal flow of long-chain fatty acids in steers. The tested diets were the following: conventional (feedlot diet composed of 60% corn silage and 40% of concentrate); winter forage silage -rye grass (Lolium multiflorum, Lam); or tropical forage silage -association of millet (Pennisetum americanum, Leeke + alexander grass, Brachiaria plantaginea). Six Charolais × Nellore crossbred steers with cannulas in duodenum were used in a 3 × 3 double Latin square. Dry material intake was similar among the groups (mean of 4,037 g/day), but the intake of total fatty acids and saturated fatty acids were higher in the group fed tropical pasture silage. On the other hand, the animals which received the conventional diet consumed higher quantity of unsaturated fatty acids. Tropical pasture silage provided higher consumption of vacenic acid (C18:1 t-11) and the winter forage silage offered higher consumption of conjugated linoleic acid. The intake of omega-6 fatty acids was higher in the group fed conventional diet and for omega-3, intake was higher in the group fed tropical pasture diet. The total fatty acid flow in the duodenum was not affected by the diets, but in all treatments it was higher than the consumed one. The animals fed diet with concentrate show the greatest changes on the profile of fatty acids during the ruminal fermentation. Conventional diets provide the highest intake of unsaturated fatty acids and the highest availability of vacenic acid in the small intestine, but they do not increase the supply of intestinal conjugated linoleic acid.

show abstract

“…The ruminal pH, in this study, is the ideal pH range between 5.5 and 7.0 (FURLAN; MACARI; FARIA . The ruminal pH can be varied according to diet and with time after feeding (SILVEIRA et al;.…”

Section: Variablementioning

confidence: 99%

Sunflower cake in diets for lambs: intake, digestibility, nitrogen balance and rumen parameters

et al. 2015

View full text Add to dashboard Cite

The present study objective was to determine the intake and digestibility, nitrogen balance and ruminal fermentation parameters in sheep fed diets containing levels of substitution of soybean meal for sunflower cake. The diets consisted of five levels of protein soybean meal (0, 25, 50, 75 and 100 %) by sunflower cake. Diets were formulated with 12.6% CP, respecting the roughage:concentrate ratio of 40:60, as source roughage was used hay Tifton-85 and as food concentrates used were: corn, soybean meal, sunflower cake and premix mineral vitaminic. Five lambs crossbred castrated with average weight of 29.64 ± 2.94 kg were used, distributed in latin square 5 x 5. There were no differences in intake dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF) and total digestible nutrients. The intake of ether extract (EE) and non-fiber carbohydrates (NFC) were increased linearly. For intake of total carbohydrates (TC) was observed equation linear in relation to body weight and metabolic weight and quadratic when expressed in g day -1 with peak in 377.1 g kg -1 replacement of soybean meal by sunflower cake. There were no differences in digestibility DM, OM, CP, NDF, NFC and TC. There was a linear increase in the digestibility of ether extract (EE). The intake, feces, urinary and retained nitrogen were not influenced by levels of substitution of soybean meal by sunflower cake in the diets. For the pH of liquor ruminal there was no difference for the different levels of substitution of soybean meal by sunflower cake. However, ruminal pH differed with respect to collection time for all experimental diets. There was no effect on diets and sampling time for concentration of NH 3 -N. It was concluded that the sunflower cake can be used as an alternative food to replace soybean meal up to 100% in concentrate mixture unless there are changes in the rumen parameters, balance of nitrogen, intake and nutrient digestibility. Key words: Co-products, oilseed, ruminants ResumoObjetivou-se com este estudo, determinar o consumo e digestibilidade dos componentes nutritivos, balanço de nitrogênio e os parâmetros de fermentação ruminal em borregos alimentados com rações contendo diferentes teores de torta de girassol em substituição ao farelo de soja. Os tratamentos consistiram em cinco níveis de substituição da proteína do farelo de soja (0; 25; 50; 75 e 100 g kg -1 MS) pela torta de girassol. As rações foram formuladas com 12,6% PB respeitando-se uma relação volumoso:concentrado de 40:60, tendo como fonte volumosa o feno de Tifton-85 e ração suplementar formuladas com milho, farelo de soja, torta de girassol, mistura mineral e vitamínica. Foram utilizados cinco borregos sem raça definida, castrados, com peso vivo médio de 29,64 ± 2,94 kg, distribuídos em quadrado latino 5 x 5. Não houve diferenças nos consumos de matéria seca (MS), matéria orgânica (MO), proteína bruta (PB), fibra em detergente neutro (FDN) e nutrientes digestíveis totais (NDT). O consumo de extrato etéreo (EE) e carboidratos não fi...

show abstract

Ganho de peso vivo e fermentação ruminal em novilhos mantidos em pastagem cultivada de clima temperado e recebendo diferentes suplementos

Abstract: Sales Ramiro Lopes da Silveira

Cited by 8 publications

References 11 publications

Production parameters and forage loss of oat and rye grass pastures managed with beef heifers fed diets with energy supplementation

Production parameters and forage loss of oat and rye grass pastures managed with beef heifers fed diets with energy supplementation

Profile of ingested fatty acids and in the duodenal digest of steers fed different diets

Sunflower cake in diets for lambs: intake, digestibility, nitrogen balance and rumen parameters

Contact Info

Product

Resources

About