Fontes de energia em suplementos múltiplos para bezerros Nelore em creep-feeding: desempenho produtivo, consumo e digestibilidade dos nutrientes

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

doi:10.1590/s1516-35982009000700024

Cited by 18 publications

(20 citation statements)

References 8 publications

(6 reference statements)

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“…This effect of the dietary iNDF content was more prominent when high-starch forages were considered ( Due to the effect of the interaction between forage type and dietary CP, positive effects associated with an increase in diet CP were only significant for high-starch forages (Equation 4.15). Clearly positive effects of nitrogenous compounds availability in the diet on effective fiber utilization in the rumen are normally observed when nitrogen deficient diets are offered to animals (Detmann et al, 2009), a characteristic little observed in the dataset used in the present study. However, with the increase in starch participation in the diet, deleterious effects on fiber utilization can be observed, that are attributed to falls in rumen pH to values below the adequate for fibrolytical activity or to an increased competition for substrates among fibrolytic and non-fibrolytic species (Mertens and Loften, 1980;Mould et al, 1983;Arroquy et al, 2005;Carvalho et al, 2011).…”

Section: Discussion Of the Main Characteristics And Modifications To mentioning

confidence: 67%

Nutrient Requirements of Zebu and Crossbred Cattle - BR-CORTE

Filho¹,

Silva²,

Gionbelli³

et al. 2016

Exigências Nutricionais De Zebuínos Puros E Cruzados - BR-CORTE

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143

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Section: Discussion Of the Main Characteristics And Modifications To mentioning

confidence: 67%

Nutrient Requirements of Zebu and Crossbred Cattle - BR-CORTE

Filho¹,

Silva²,

Gionbelli³

et al. 2016

Exigências Nutricionais De Zebuínos Puros E Cruzados - BR-CORTE

Self Cite

143

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“…Evaluating the effect of supplementing calves in creep feeding, Porto et al (2009) also observed a reduction of over 300 g day -1 in supplement intake in animals fed wheat bran; however, their performance also was not affected.…”

Section: Resultsmentioning

confidence: 90%

“…In a production system in which the cattle breeding season takes place during the rainy season, the longest calf growth stage occurs in the rainy-dry transition. These factors may limit animal performance, since the availability of nutrients from milk and forage may not be sufficient to meet the requirements of the animal (PORTO et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

“…The use of creep feeding has contributed to the resolution of these problems, providing higher weaning weights to these animals (PORTO et al, 2009;LOPES et al, 2013). The feed used during this phase must have a good nutritional value and be palatable to stimulate consumption by the animals, given that intake is directly related to the animal performance and to the supplementation cost.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, nutritionists have sought alternative feeds that do not compromise animal performance and that can reduce the supplementation cost. The sorghum and the wheat bran are feedstuffs that have been replacing corn in some supplementation programs (PEREIRA et al, 2007;CARVALHO et al, 2009;PORTO et al, 2009) due to their similar chemical composition, but little is known about the use and acceptance of these ingredients by suckling calves.…”

Section: Introductionmentioning

confidence: 99%

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Supplementation of grazing suckling beef calves receiving different energy sources

Lima

Paulino

Detmann

et al. 2016

SCA

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The aim of this study was to evaluate the effect of different energy sources -corn, sorghum, and wheat bran -on performance, intake, digestibility, and nitrogen utilization efficiency of beef calves subjected to creep feeding. Thirty-four calves (12 males and 22 females) with initial age and weight of four months and 108±3.9 kg, respectively, were used in a randomized-block experimental design with four treatments and two blocks (males and females). Treatments were control (MM), a mineral mixture ad libitum; corn (C); corn + sorghum (C+S); and corn + sorghum + wheat bran (C+S+WB). Supplements contained approximately 20% crude protein (CP), and were fed in the amount of 0.5% of body weight. Supplemented animals had higher performance (P<0.05) when compared with those on treatment MM. Supplementation increased (P<0.05) the intakes of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber corrected for ash and protein (NDFap), non-fibrous carbohydrates (NFC), digestible neutral detergent fiber (dNDF), and digestible organic matter (dOM). The digestibility of NFC was higher (P<0.05) in the supplemented treatments. The C+S and C+S+WB treatments provided increased digestibility (P<0.05) of OM, CP, and NDFap. The synthesis of nitrogen compounds was higher (P<0.05) in animals on treatment C as compared with those on the other supplemented treatments. Animals on treatments C+S and C+S+WB had higher (P<0.05) nitrogen utilization efficiency compared with those on the other treatments. Concentrate supplementation improved the animal performance. The use of other energy sources (sorghum or wheat bran) in association with corn is recommended for suckling calves. ResumoO objetivo deste trabalho foi avaliar o efeito de diferentes fontes energéticas, milho, sorgo e farelo de trigo, sobre o desempenho, o consumo, a digestibilidade aparente total dos constituintes da dieta e a eficiência de utilização dos compostos nitrogenados em bezerros de corte submetidos ao creep feeding. Foram utilizados 34 bezerros lactentes (12 machos e 22 fêmeas) com idade e peso médio inicial de quatro meses e 108±3,9 kg, respectivamente. O experimento foi conduzido em blocos casualizados com quatro tratamentos e dois blocos (machos e fêmeas). Os tratamentos foram: controle (MM), fornecimento de mistura mineral ad libitum aos animais; milho (M); milho + sorgo (M+S) e milho + sorgo + farelo de trigo (M+S+FT). Os suplementos continham aproximadamente 20% de proteína bruta (PB) e foram fornecidos na quantidade de 5 g kg -1 do peso corporal. Os animais suplementados apresentaram maior (P<0,05) ganho de peso quando comparados com os animais do tratamento MM. A suplementação aumentou (P<0,05) os consumos de matéria seca (MS), matéria orgânica (MO), PB, fibra em detergente neutro corrigida para cinzas e proteína (FDNcp), carboidrato não fibroso (CNF), fibra em detergente neutro digerida (FDNd) e matéria orgânica digerida (MOD). A digestibilidade aparente total do CNF foi maior (P<0,05) nos animais suplementados. Os tratamento...

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Effect of calves’ supplementation on performance, nutritional and behavioral characteristics of their dams

Valente

Paulino

Detmann

et al. 2012

Trop Anim Health Prod

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The effects of supplementation of beef calves on weight gain, intake and digestibility of pasture, milk production and composition of their dams, and behavior of the pair cow-calf were assessed. Fifty-five beef cows with an initial average body weight of 449 ± 8 kg and their respective offspring, with an initial average body weight of 138 + 3 kg and aged between 90 and 150 days, were used. Animals were submitted to an experimental period of 112 days. The experimental treatments consisted of: control = mineral mixture only, plan 1 = high protein and high carbohydrate multiple supplement, plan 2 = high protein and low carbohydrate multiple supplement, plan 3 = low protein and high carbohydrate multiple supplement, and plan 4 = low protein and low carbohydrate multiple supplement. About 25 and 12.5 % of the protein requirements were supplied by the high and low protein supplements, respectively, and 15 and 7.5 % of total digestible nutrient requirements by the high and low carbohydrate supplements, respectively. Grazing behavior, performance, milk production, milk composition, intake, and digestibility of the cows were not affected (P > 0.05) by the supplementation of the calves. The supplemented calves had greater (P < 0.05) performance (as measured by final body weight, average daily gain, and final body condition score), intake and idle time, and lower (P < 0.05) grazing time, but supplementation did not affect (P > 0.05) suckling time and suckling frequency. It can be concluded that supplementation affects the behavior and feed intake of calves. However, it does not affect the suckling time and suckling frequency of calves. Additionally, performance, milk production, nutritional characteristics, and behavior of their dams are not affected.

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Fontes de energia em suplementos múltiplos para bezerros Nelore em creep-feeding: desempenho produtivo, consumo e digestibilidade dos nutrientes

Cited by 18 publications

References 8 publications

Nutrient Requirements of Zebu and Crossbred Cattle - BR-CORTE

Nutrient Requirements of Zebu and Crossbred Cattle - BR-CORTE

Supplementation of grazing suckling beef calves receiving different energy sources

Effect of calves’ supplementation on performance, nutritional and behavioral characteristics of their dams

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