Silagem de grãos úmidos de milho de textura dura ou macia em dietas com polpa cítrica para vacas em lactação

Costa, Ferreira; Júnior, Gilson Sebastião Dias; Zacaroni, O.F.; Santos, José Fortunato Ferreira; Pereira, R.A.N.; Pereira, Marcos Neves

doi:10.1590/s0102-09352014000100028

Cited by 9 publications

(7 citation statements)

References 24 publications

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“…Neste estudo, porém, a gordura do leite não aumentou com a substituição do milho grão por polpa cítrica na dieta. Costa et al (19) avaliaram o desempenho de vacas leiteiras que consumiram polpa cítrica e dois teores dietéticos de silagem de grão úmido de milho. O teor de polpa cítrica na dieta foi de 16,2% ou 25,6%, com alto e baixo milho, respectivamente.…”

Section: A Tabela 3 Apresenta Os Coeficientes Médios De Digestibilidaunclassified

Substituição De Fonte De Amido Por Fibra Solúvel Em Detergente Neutro Na Dieta De Vacas

et al. 2016

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ResumoConduziu-se este trabalho com o objetivo de avaliar os efeitos da substituição do milho por polpa cítrica sobre o desempenho de vacas leiteiras. Utilizaram-se nove vacas (três canuladas no rúmen) da raça Holandesa, pluríparas, com 80 ± 24 dias de lactação e produção média diária de 20 ± 0,58 kg de leite. Os animais foram confinados em tie stall, com cocho e bebedouro individuais. Utilizou-se um quadrado latino 3 x 3. Os períodos experimentais tiveram duração de 21 dias, sendo 14 de adaptação e sete de coleta. Os tratamentos foram constituídos de 100% milho grão (MG), 50% milho grão e 50% polpa cítrica (MP) e 100% polpa cítrica (PC). Não houve diferenças significativas na ingestão dos nutrientes (MS, MO, FDN, FDA, PB, amido) entre dietas. O tratamento com polpa cítrica produziu maior proporção de acetato em relação aos demais, bem como maior relação acetato/propionato. As médias de pH situaram-se entre 5,86 e 7,35. As médias de N-NH 3 apresentaram maiores diferenças nos tempos 2 e 3 horas pós-alimentação. Não houve diferenças entre as dietas para produção total de leite corrigido para 4% de gordura, proteína, lactose, extrato seco total (EST) e nitrogênio uréico do leite (NUL).Palavras-chave: ingestão de nutrientes; milho grão; polpa cítrica; vacas leiteiras. AbstractThe objective of this research was to evaluate the effects of replacing corn grain by citrus pulp on dairy cows performance. Nine Holstein cows (three cannulated in the rumen), at 80 ± 24 milking days, and daily medium production of 20 ± 0.58 kg/day were used. Animals were maintained in tie stall with individual feeder and drinker. Experimental design was a 3 x 3 Latin square. Experiment lasted 21 days, being 14 days of adaptation and seven of collection. Treatments were 100% corn grain (CG); 50% corn grain and 50% citric pulp (CG-P) or 100% citrus pulp (P). There were no differences in nutrients (DM, OM, NDF, ADF, CP, starch) ingestion among diets. The treatment with citrus pulp produced larger proportion of acetate in relation to the others, as well as larger acetate/propionate ratio. The pH averages ranged between 5.86 and 7.35. The averages of N-NH 3 presented larger differences in the times 2 and 3 hours after feeding. There were no differences among the diets for total 4%-fat corrected milk production, protein, lactose, total dry extract (TDE) and milk urea nitrogen

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Section: A Tabela 3 Apresenta Os Coeficientes Médios De Digestibilidaunclassified

Substituição De Fonte De Amido Por Fibra Solúvel Em Detergente Neutro Na Dieta De Vacas

et al. 2016

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“…However, both cereals have a strong protein matrix around the starch granules, limiting ruminal and intestinal digestion. This problem is aggravated in Brazil, where most corn hybrids have a hard endosperm, rich in protein matrix (Costa et al, 2014). Grain rehydration and subsequent ensiling can be used to increase starch digestibility by reducing the protein matrix integrity, providing greater access for microbes and intestinal enzymes to the starch granules (Arcari et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Beef quality of Nellore steers fed dried or rehydrated and ensiled corn or sorghum grains

Ferreira

Chizzotti

Zamudio

et al. 2019

Rev. colomb. cienc. pecu.

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Background: Rehydration of grains, such as corn and sorghum, is used to increase nutrient absorption. However, the effect of this practice on meat quality is poorly understood. Objective: To evaluate the effects of type of grain and processing on the meat quality of Nellore steers in a feedlot. Methods: Twenty-four non-castrated Nellore steers (270 ± 53 kg initial body weight) were distributed in a completely randomized 2×2 factorial design, with six replicates. The first factor was cereal type (corn or sorghum), and the second was the grain processing (dry or rehydrated and ensiled). The diets were composed of 28.44% corn silage and 71.56% concentrate. Sixty days before the beginning of the experiment, corn and sorghum grains were rehydrated and ensiled. The animals were slaughtered after 140 days of confinement. Meat quality analyses were determined in samples of fresh and aged meat (7 days) from the Longissimus lumborum muscle. Results: no difference between treatments was observed for carcass pH and L* (lightness), a* (redness), and b* (yellowness) values, shear force, thawing and cooking losses, and chemical composition of meat (p>0.05). The b* (yellowness) value of subcutaneous fat was higher in steers fed corn, regardless of grain processing (p=0.03). Sarcomere length was higher in aged meat of steers fed sorghum, regardless of processing method (p=0.01). Conclusions: the grain processing method does not affect beef quality; however, grain type can affect subcutaneous fat color and sarcomere length of aged beef.

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“…Several alternatives have been proposed in the search for foods to complement cattle feeding during the dry season in much of Brazil, such as the use of by-products from agribusiness (COSTA et al, 2014;TEIXEIRA et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Mathematical models applied to the optimisation of mixtures in the production of silage from coffee by-products

Malta

Cirillo

Fassio

et al. 2017

Revista Ciência Agronômica

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-The aim of this work was to propose a mathematical model to determine the best combination of the byproducts of coffee processing in the production of silage. To this end, 13 treatments were evaluated, resulting from the combination of wet coffee husks (WCH) and dried coffee husks (DCH), both with and without the use of molasses (M) and with or without the use of the inoculant Lactobacillus plantarum (I). From these components, various mixtures were proposed and evaluated, using the technique of simultaneous optimisation of multiple response variables. Silages with the best characteristics were obtained from the use of 76.40% WCH, 18.77% DCH, 4.83% of M and 0.0001% I.

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Silagem de grãos úmidos de milho de textura dura ou macia em dietas com polpa cítrica para vacas em lactação

Cited by 9 publications

References 24 publications

Substituição De Fonte De Amido Por Fibra Solúvel Em Detergente Neutro Na Dieta De Vacas

Substituição De Fonte De Amido Por Fibra Solúvel Em Detergente Neutro Na Dieta De Vacas

Beef quality of Nellore steers fed dried or rehydrated and ensiled corn or sorghum grains

Mathematical models applied to the optimisation of mixtures in the production of silage from coffee by-products

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