Níveis de energia em suplementos múltiplos para terminação de novilhos em pastagem de capim-braquiária no período de transição águas-seca

Sales, M. F. L.; Paulino, Mário Fonseca; Porto, Marlos Oliveira; Filho, Sebastião de Campos Valadares; Acedo, Tiago S; Couto, Victor Rezende Moreira

doi:10.1590/s1516-35982008000400020

Cited by 17 publications

(10 citation statements)

References 25 publications

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“…However, steers supplemented with PMM in the first dry season extended the time needed to reach the slaughter criteria by 45 days compared to those supplemented with CM (Table 1). The animal performance observed was in agreement with the ADG observed by Canesin et al (2007), Sales et al (2008) and Morais et al (2014) for steers grazing palisade grass and supplemented with similar supplements during the dry season.…”

Section: Second Dry Seasonsupporting

confidence: 86%

Biological and economic performance of genetic groups under different diets

Euclides¹,

Costa²,

Filho³

et al. 2018

Biosci. J.

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A grazing trial to evaluate biological and economic efficiencies for rearing young animals exclusively on pasture from weaning at 7 months of age, with average initial weight of 220 ± 12 kg, to slaughter was conducted from May 2006 to October 2007. Two levels of combined supplementation during the first dry period and four genetic groups (F1 Angus-Nellore; ½Braford-¼Angus-¼Nellore; ½Brahman-¼Angus-¼Nellore; and ⅝Charolais-⅜Nellore) were used following a 4 by 2 factorial arrangement and eight replications in a completely randomized design. During both dry periods, eight paddocks of deferred Brachiaria brizantha were utilized. During the first dry period, concentrated mix (CM) and protein-mineral mixture (PMM) were provided in quantities of 0.8% and 0.2% of body weight (BW), respectively, for 142 days. During the subsequent rainy period, the animals were transferred to eight guinea grass paddocks for 197 days. During the second dry period, the animals were allocated to the same eight palisade grass paddocks used during the previous dry season. Steers had received supplementary diet with the same CM used before at 0.8% of BW. Animals supplemented with CM gained more BW than those supplemented with PMM; however, during the rainy season, steers supplemented with PMM performed better than those receiving CM during the preceding dry period. Using concentrate since the first dry season is a risky option in economic terms, as only the Angus-Nellore group showed a positive but small gain.

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Section: Second Dry Seasonsupporting

confidence: 86%

Biological and economic performance of genetic groups under different diets

Euclides¹,

Costa²,

Filho³

et al. 2018

Biosci. J.

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“…According to Kunkle et al (2000), effects of supplementation with corn or soybean on intake and digestibility of forage are advantageous, especially in animals fed levels above 5% of the body weight. Sales et al (2008) added increasing levels of energy supplementation, setting the consumption of crude protein (CP) at 0.3 kg/day and found negative responses on animal performance. Although there was any effect on dry matter intake, levels of energy supplementation impaired pasture intake and fiber digestibility.…”

Section: Introductionmentioning

confidence: 99%

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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“…This statement explains the low weight gain of animals that received mineral supplementation only and the higher performance of those which consumed concentrate supplements. Positive responses to concentrate supplementation in weight gain by grazing cattle during the rainy-dry transition period were also observed by Leão et al (2005) and Sales et al (2008).…”

Section: Discussionmentioning

confidence: 71%

Supplementation strategies for grazing beef cattle during the rainy-dry transition period

Moraes

Paulino

Moraes

et al. 2017

SCA

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An experiment was carried out to investigate the effects of supplementation strategies on intake, digestibility, and performance of Nellore cattle on pasture (Urochloa decumbens) during the rainy-dry transition period. The evaluated strategies were mineral supplementation (MS), self-feed supplementation (SF), and infrequent concentrate supplementation. Supplementation frequencies were three times per week (Mondays, Wednesdays, and Fridays -3tw) and daily (7tw). Animals receiving concentrate supplementation had higher pasture DM and TDN intakes than those fed MS. There was no difference (P > 0.10) between concentrate supplementation strategies. Average pasture DM intake was 7.89, 8.09, and 8.10 kg day −1 for SF, 3tw, and 7tw, respectively. No effects were found (P > 0.10) between SF and infrequent supplementation, or for the supplementation frequencies tested. The lowest average daily gain (ADG) (P < 0.10) was found for animals fed MS, and there was no difference between concentrate supplementation strategies for this variable. Average daily gains for MS, SC, 3tw, and 7tw were 661.4, 812.7, 811.5 and 819.2 g/animal, respectively. During the rainy-dry transition period, grazing beef cattle receiving concentrate supplementation have higher pasture and TDN intakes and better performance than animals fed mineral supplement only. Self-feed supplementation or supplementation provided three days per week do not compromise pasture and TDN intakes, nutrient digestibility, or performance of grazing beef cattle. Key words: Digestibility. Infrequent supplementation. Intake. Performance. Self-feed supplementation. ResumoUm experimento foi conduzido para estudar diferentes estratégias de suplementação sobre o consumo, a digestibilidade e desempenho de bovinos Nelore a pasto (Urochloa decumbens) durante o período de transição águas-seca. As estratégias avaliadas foram: suplementação mineral (SM), a suplementação tipo autocontrole de consumo (AC) e suplementação infrequente. As frequências de suplementação avaliadas foram a três vezes/semana (segundas, quartas e sextas-feiras -3X) e diariamente (7X). Os animais que receberam suplementação de concentrado apresentaram maior consumo de MS de pasto e NDT do que aqueles que receberam SM. Não houve diferença (P > 0,10) entre as estratégias de suplementação concentrada com média de ingestão de MS de 7,89; 8,09 para AC, 3X e 7X. Nenhum efeito foi encontrado (P > 0,10) entre suplementação AC e as frequências estudadas que não diferiram entre si. Verificou-se menor ganho médio diário (GMD) (P < 0,10) para os animais alimentados com SM e não houve diferença entre as estratégias de suplementação concentrada. Os GMD foram de 661,4; 812,7; 811,5 e 819,2 g/animal, respectivamente para SM, AC, 3X e 7X. Durante a época de transição águas-seca, bovinos de corte que recebem suplementação concentrada apresentam maiores consumos de MS de pasto e de NDT e desempenho do que animais alimentados apenas com suplemento mineral. Suplementos tipo AC ou suplementos ofertados 3X/semana não impacta n...

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Níveis de energia em suplementos múltiplos para terminação de novilhos em pastagem de capim-braquiária no período de transição águas-seca

Cited by 17 publications

References 25 publications

Biological and economic performance of genetic groups under different diets

Biological and economic performance of genetic groups under different diets

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

Supplementation strategies for grazing beef cattle during the rainy-dry transition period

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