Fontes de energia em suplementos múltiplos de auto-regulação de consumo na recria de novilhos mestiços em pastagens de Brachiaria decumbens durante o período das águas

Paulino, Mário Fonseca; Moraes, Eduardo Henrique Bevitori Kling de; Zervoudakis, Joanis Tilemahos; Alexandrino, Emerson; Figueiredo, Darcilene Maria de

doi:10.1590/s1516-35982005000300029

Cited by 19 publications

(17 citation statements)

References 10 publications

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“…Substitution coefficient (SC) is the relationship among forage dry matter quantity, which was no longer consumed, and the quantity of ingested supplement (Reis et al, 1996). In this work, the SC ranged from -0.40 to 0.36 (Table 6).…”

Section: Resultsmentioning

confidence: 78%

“…Besides, the increase on microbial synthesis, provided by dietary crude protein, rises exit of microbial protein in the rumen. Paulino et al (2005), when evaluating the effect of different energy sources in multiple supplements on productive performance of steers growing on pasture in the rainy season, reported that, although there had not been difference on average daily gain among the supplementation levels, the supplement containing ground ear corn (GEC) provided additional gains at the order of 220g/day when compared to control treatment, which was mineral mixture, only. Average weight gain for all supplements was 1.247 kg/day, which is greater than the values found in the present study.…”

Section: Resultsmentioning

confidence: 99%

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Supplementation levels for growing beef cattle grazing in the dry-rainy transition season

Sales

Paulino²,

Filho³

et al. 2011

R. Bras. Zootec.

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-The objective of this experiment was to study the effects of different levels of supplementation on the performance, intake, digestibility, pH and rumen ammonia concentration in growing bulls grazing Brachiaria decumbens Stapf. pasture, during the dry-rainy transition season. For evaluation of performance, intake and digestibility, it was used 25 non-castrated steers at 11 months of age and initial average body weight of 270 kg, grouped in five plots of five animals each, following a completely randomized design. Each plot received one of the following feeding treatments: mineral mixture and supplement at the proportion of 0.5, 1.0, 1.5 and 2.0 kg/animal/day, corresponding to 0.18, 0.36, 0.54 and 0.72% of the average body weight of the animals. The area designated for the animals was constituted of five 2.0-ha paddocks. durante o período de transição seca-águas. Para avaliação do desempenho, do consumo e da digestibilidade, foram utilizados 25 novilhos não-castrados com idade e peso médio iniciais de 11 meses e 270 kg, divididos em cinco lotes de cinco animais, segundo um delineamento inteiramente casualizado. Cada lote recebeu um dos seguintes complementos alimentares: mistura mineral; e suplemento na proporção de 0,5; 1,0; 1,5 e 2,0 kg/animal/dia, correspondentes a 0,18; 0,36; 0,54 e 0,72% do peso corporal médio dos animais. A área destinada aos animais foi constituída de cinco piquetes de 2,0 ha. Para a avaliação do pH e da concentração ruminal de amônia, foram utilizados cinco novilhos mestiços não-castrados, com peso médio de 240 kg, fistulados no esôfago, rúmen e abomaso, dispostos em quadrado latino 5 × 5, com cinco tratamentos e cinco períodos experimentais. O desempenho dos animais comportou-se de forma linear positiva de acordo com os níveis de suplementação, refletindo em aumento de mais de 80% no ganho de peso dos animais. Os consumos de matéria seca (MS) total e do pasto, de matéria orgânica e de fibra em detergente neutro não foram influenciados pela suplementação. Os consumos de proteína bruta, carboidratos não fibrosos, extrato etéreo e nutrientes digestíveis totais, assim como a digestibilidade dos nutrientes e a concentração de amônia ruminal, apresentaram comportamento linear positivo em resposta aos níveis de suplementação.Níveis crescentes de suplementação concentrada influenciam positivamente o desempenho de bovinos recriados em pastejo no período de transição seca-águas.Palavras-chave: consumo, digestibilidade, gado de corte, suplementos múltiplos, zebuínos Revista Brasileira de Zootecnia

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Section: Resultsmentioning

confidence: 78%

Section: Resultsmentioning

confidence: 99%

Supplementation levels for growing beef cattle grazing in the dry-rainy transition season

Sales

Paulino²,

Filho³

et al. 2011

R. Bras. Zootec.

View full text Add to dashboard Cite

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“…Recent studies conducted under tropical conditions showed increases in animal production when supplemental sources of non-protein nitrogen were added to the diet (Paulino et al, 2005;Porto, 2005;Paulino et al, 2008;Costa, 2009).…”

Section: Introductionmentioning

confidence: 99%

Growth and antimicrobial activity of lactic acid bacteria from rumen fluid according to energy or nitrogen source

et al. 2011

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-The objective of this study was to evaluate the effects of supplementation with different sources of energy and nitrogenous compounds on the in vitro growth and production of bacteriocin of lactic acid bacteria. Incubations were performed by using ruminal fluid from a rumen-fistulated Holstein-Zebu steer. The animal was kept on a Brachiaria decumbens pasture receiving 200 g/day of supplemental crude protein. Substrates and inoculum were placed in glass flasks considering eight treatments: cellulose, cellulose and casein, cellulose and soy peptone, cellulose and urea, starch, starch and casein, starch and soy peptone and starch and urea. Successive incubations were conducted to select microorganisms according to the energy sources and nitrogenous compounds. Starch favoured growth of lactic acid bacteria when compared to cellulose. Supplementation with true protein (soy peptone and casein) stimulated the growth of these bacteria when compared to the control (without supplementation with nitrogenous compounds). The addition of urea did not stimulate the growth of lactic acid bacteria. No antimicrobial activity was detected from colonies of isolated lactic acid bacteria. Sources of true protein increase the competition between non-structural and structural carbohydrates fermenting bacteria.

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“…Analyses of the amount of dry matter (DM), crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF), calcium (Ca) and phosphorus (P) in the concentrate and forage were performed. The determination of the potentially digestible dry matter (DMPD) was subsequently performed according to Paulino, Moares, and Zervoudakis (2005) as follows: DMPD (% DM) = {0.98 × (100 -NDF) + (NDF -iNDF), where NDF = neutral detergent fiber (% DM) and INDF = indigestible neutral detergent fiber (% DM), where iNDF was determined according to the methodology described by Casali et al (2009).…”

Section: Forage Availability and Chemical Compositionmentioning

confidence: 99%

<b>Effect of concentrate supplementation and time scales of evaluation on behavioral and physiological responses of pregnant ewes on grazing system

Silva

Marques

Torreão

et al. 2016

Acta Sci. Anim. Sci.

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ABSTRACT. This study was realized to evaluate the effect of concentrate supplementation and time scales of evaluation on behavioral and physiological responses of pregnant ewes on grazing system. The experimental design was a randomized 2 x 2 x 3 factorial arrangement (two breeds: Morada and Santa Inês; two concentrate supplementation levels: 0.5 and 1.5% of body weight; and three time scales of evaluation: 10, 20 and 30 minutes) with six replicates per treatment. The physiological parameters were influenced by period of the day and breeds, with higher values in the afternoon to Santa Inês ewes. Also, influence of concentrate supplementation was found between the breeds with greater values in Santa Inês ewes. But, it did not alter the physiological parameters among animals of the same genetic group. The grazing activity was influenced (p < 0.05) by the scales of observation intervals. Interval of 10 minutes was the most effective methodology to assess accurately the behavior of these animals due to higher number of the registries, offering higher data reliability. Morada Nova breed exhibited less time grazing (p < 0.05) on the 10-minute scale compared to 20 and 30 minutes, which were similar (p > 0.05) for such a feature. Thus, the pregnant ewes exhibited high adaptive capability with observations of 10 minutes for better description of grazing activity in Morada Nova.

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Fontes de energia em suplementos múltiplos de auto-regulação de consumo na recria de novilhos mestiços em pastagens de Brachiaria decumbens durante o período das águas

Cited by 19 publications

References 10 publications

Supplementation levels for growing beef cattle grazing in the dry-rainy transition season

Supplementation levels for growing beef cattle grazing in the dry-rainy transition season

Growth and antimicrobial activity of lactic acid bacteria from rumen fluid according to energy or nitrogen source

<b>Effect of concentrate supplementation and time scales of evaluation on behavioral and physiological responses of pregnant ewes on grazing system

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