Composição químico-bromatológica da silagem de capim-elefante com níveis de casca de café

Faria, Dawson José Guimarães; García, Rasmo; Pereira, Odilon Gomes; Fonseca, Dilermando Miranda da; Mello, Renius; Rigueira, João Paulo Sampaio

doi:10.1590/s1516-35982007000200005

Cited by 10 publications

(20 citation statements)

References 6 publications

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“…However, NH 3 -N contents above 150 g kg -1 N in the control silage indicate intensive proteolysis. Therefore, the use of these silages might result in low acceptability and, consequently, low animal intake (FARIA et al, 2007). The NH 3 -N values of wilted elephant grass silages were similar to those reported by Tosi et al (1999), who reported 165 g kg -1 N in wilted elephant-grass silage.…”

Section: Resultssupporting

confidence: 83%

“…However, Carvalho et al (2007) could not observed any differences in lignin contents between wilted or un-wilted elephant grass silages. According to Van Soest (1994), lignin is the limiting factor to plant cell wall availability to herbivore animals on anaerobic digestion as well as; it can therefore be considered as an anti-nutritional factor (FARIA et al, 2007). The values observed in our study were lower than those reported by Rodrigues et al (2005) studying elephant grass silages with citrus pulp addition.…”

Section: Resultscontrasting

confidence: 78%

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Impacts of citrus pulp addition and wilting on elephant grass silage quality

Gomes¹,

Almeida²,

Carneiro³

et al. 2017

Biosci. J.

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ABSTRACT:The objective of this work was to evaluate the use of citrus pulp addition and wilting on fermentative characteristics, chemical composition as well as gas and effluent losses of elephant grass silage. The elephant grass (70 growth days) was collected manually; one portion was immediately chopped and another one was allowed to wilt in the sun for a period of 6 h and subsequently chopped for the production of silage. Experimental PVC silos (10 cm diameter x 30 cm height) were used and sand bags were placed at the bottom of the silos. Citrus pulp (80 g kg -1 of MN) was added at the beginning of ensilage. The ensiled material was manually compressed to provide a specific mass of approximately 600 kg m -3 of silage. After 60 days, the silos were opened; gas and effluent losses were calculated and we determined pH, dry matter (DM), crude protein(CP), neutral detergent fibre (NDF), lignin, ammonia nitrogen, ash and in vitro dry matter digestibility (IVDMD). We added 0 or 80 g kg -1 of citrus pulp to wilted and un-wilted elephant grass. We used a completely randomised design with a 2 x 2 factorial arrangement (wilted or un-wilted) x (with or without citrus pulp), totalling treatments with five repetitions. Average values were compared using the F test with a probability of 5%. The addition of citrus pulp resulted in reduced levels of NDF, lignin, ash, N-NH 3 and pH and in increased values of DM and IVDMD of silages. Wilting increased the DM, NDF and lignin values and reduced the concentrations of CP, IVDMD and N-NH 3 . Based on our results, citrus pulp addition improves the chemical composition of elephant grass silage and increases its in vitro dry matter digestibility.

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Section: Resultssupporting

confidence: 83%

Section: Resultscontrasting

confidence: 78%

Impacts of citrus pulp addition and wilting on elephant grass silage quality

Gomes¹,

Almeida²,

Carneiro³

et al. 2017

Biosci. J.

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“…A MS, o pH e a concentração de N-NH 3 em % do nitrogênio total (NT) são parâmetros indicativos de boa fermentação e alguns dos indicadores da qualidade das silagens. O termo qualidade da silagem é usado para caracterizar a extensão do processo fermentativo e se ele aconteceu de forma adequada e não para designar seu valor nutritivo (16) .…”

Section: Resultsunclassified

Valor Nutritivo E Características Fermentativas Da Silagem De Capim-Elefante Com Diferentes Proporções De Casca De Café

et al. 2018

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Resumo Avaliaram-se o valor nutritivo e as características bromatológicas de silagens de capim-elefante (CE), cultivar mineiro, cortado aos 70 dias de rebrota, com adição de quatro níveis de casca de café (1-CE; 2-CE + 10%; 3-CE + 20% e 4-CE + 30%). Utilizou-se o delineamento experimental em blocos casualizados com quatro tratamentos e seis repetições. Foram determinados nas silagens os teores de lignina, celulose, cafeína, DIVMS, pH, N-NH3 e as perdas de efluente e gás. Os valores de MS aumentaram enquanto o pH reduziu linearmente com o aumento da casca de café na silagem de capim elefante. A produção de efluente ocorreu somente na silagem sem casca de café nos cinco primeiros dias, com maior produção nos três primeiros. Os valores de N-NH3 decresceram linearmente com o aumento da casca de café. Houve aumento do teor de PB à medida do aumento da casca de café. Houve aumento de FDN e redução FDA e DIVMS linear com o aumento da casca de café. Esses resultados mostram que a casca de café como aditivo foi efetivo em melhorar as características da silagem de capim-elefante cortado aos 70 dias de idade.

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“…A low N-NH 3 NT -1 content with less than 10% NT indicates that the storage process did not result in excessive protein breakdown in ammonia. However, a value greater than 15% means that protein breakage was considerable, silages may be less accepted by animals, and there may be low consumption (FARIA et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

Chemical composition and fermentative characteristics of old man saltbush silage supplemented with energy concentrates

Araújo

Santos

Voltolini

et al. 2018

SCA

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The objective of this study was to evaluate the fermentation profile and chemical composition of old man saltbush (Atriplex nummularia Lindl.) silage supplemented with cassava (Manihot esculenta Crantz) scraps or grain sorghum (Sorghum bicolor) in the proportion of 10% based on natural matter. The experimental design was completely randomized, in a 3 x 7 factorial arrangement (3 treatments and 7 opening days), with three replications. The treatments consisted of three silages: old man saltbush silage, old man saltbush silage + cassava scrap, and old man saltbush silage + grain sorghum. The experiment was conducted at the EMBRAPA Semiarid Animal Nutrition Laboratory, located in the city of Petrolina-PE. Twenty-one experimental silos were used for each treatment; these silos were opened after 1, 3, 5, 7, 14, 28, and 56 days in ensiling. The pH, ammoniacal nitrogen and total nitrogen ratio, dry matter, crude protein, ether extract, mineral matter, organic matter, neutral detergent fiber, acid detergent fiber, total carbohydrates, non-fibrous carbohydrate, and dry matter in vitro digestibility. The additives grain sorghum and cassava scrap increased the dry matter content and reduced pH values. N-NH 3 NT -1 values increased as the fermentation processes progressed, and after 56 fermentation days were close to 11%. Silages were classified as excellent in the fermentation process. The addition of cassava scrap and grain sorghum favors the ensiling process of the old man saltbush, providing improvements in the silage nutritive value. During the storage period, the use of these additives promoted a reduction of total losses, inhibition of alcoholic fermentation, and greater carbohydrates recovery, resulting in silage with a nutritive value similar to that of fresh forage, representing an alternative source of additives. Key words: Foodstuffs. Forage conservation. Semi-arid. Supplementation. ResumoObjetivou-se com este trabalho avaliar o perfil fermentativo e a composição química da silagem de erva sal (Atriplex nummularia Lindl.) aditivada com raspa de mandioca (Manihot esculenta Crantz) ou sorgo grão (Sorghum bicolor) na proporção de 10% com base na matéria natural. O delineamento experimental foi o inteiramente casualizado, em arranjo fatorial 3 x 7, (3 tratamentos e 7 dias de aberturas), com três repetições. Os tratamentos constituíram-se de três silagens: silagem de erva sal, silagem de erva sal + raspa de mandioca e silagem de erva sal + sorgo grão moído. O experimento foi conduzido no laboratório de Nutrição Animal da Embrapa Semiárido, localizada no município de Petrolina-PE. Para cada tratamento foram utilizados 21 silos experimentais que foram abertos aos 1, 3, 5, 7, 14, 28 e 56 dias de ensilagem. Foram determinados o pH, nitrogênio amoniacal em relação ao nitrogênio total, matéria seca, proteína bruta, extrato etéreo, matéria mineral, matéria orgânica, fibra em detergente neutro, fibra em detergente ácido, carboidratos totais, carboidrato não fibroso e digestibilidade in vitro da matéria seca. Os aditi...

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Composição químico-bromatológica da silagem de capim-elefante com níveis de casca de café

Cited by 10 publications

References 6 publications

Impacts of citrus pulp addition and wilting on elephant grass silage quality

Impacts of citrus pulp addition and wilting on elephant grass silage quality

Valor Nutritivo E Características Fermentativas Da Silagem De Capim-Elefante Com Diferentes Proporções De Casca De Café

Chemical composition and fermentative characteristics of old man saltbush silage supplemented with energy concentrates

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