&lt;b&gt;The quality of silage of different sorghum genotypes

Self Cite

ABSTRACT. This study aimed to evaluate the nutritional characteristics and quality of silages of five sorghum genotypes, namely: Volumax, AG2005E, Qualimax, BRS610 and AG2501. The study was conducted at the Experimental Farm Unimontes, in the municipality of Janaúba, state of Minas Gerais. The treatments were distributed in a randomized block design with four replicates. Data were tested by analysis of variance and means were compared by Scott-Knott test at a significance level of 5%. The pH values ranged from 3.93 and 4.10. Genotypes differed in all studied nutritional characteristics (p < 0.05). For the acid detergent fiber, differences were detected between the genotypes, AG2501 (35.66%), Volumax (34.89%), AG2005E (34.53%), Qualimax (32.39%) and BRS610 (33.60%). The high participation of lignin was verified in all genotypes except for Volumax (4.14%). All silages were within the recommended range 50-65% for in vitro dry matter digestibility and classified as having good quality, however only the AG2005E genotype met nitrogen requirements for microbial fermentation, with 7.06% crude protein.

“…Tolentino et al (2016) reported values of 37.12% for sorghum of Volumax and 39.48% DM for BRS610, with values higher than those found in the present experiment for the same genotypes.…”

Section: Resultscontrasting

confidence: 54%

“…Thus, the low nitrogen content of silages is a limiting factor for the use of forage of these genotypes mainly for animals with high nutritional requirements. Tolentino et al (2016) found CP content above 9.06% when evaluated silages of twenty-four different genotypes of sorghum, values higher than those presented in this study.…”

Section: Resultscontrasting

confidence: 53%

<b>Nutritional value of sorghum silages

Moura

Pires

Costa

et al. 2017

Self Cite

“…In regard to the water activity, the lower values observed in the silages with banana peel can be explained by the higher dry matter content of the banana peel (89.67% -Table 1), since according to Tolentino et al (2016), as the addition of solutes in silages occurs, the lower the water activity will be.…”

Section: Resultsmentioning

confidence: 99%

“…The ammoniacal nitrogen (N-NH 3 ) was also quantified in the broth, by distillation with magnesium oxide and calcium chloride, using boric acid solution and 1980). One sample of the silage was collected to determine the water activity (AW) using the AquaLab 4TE DUO equipment (Tolentino et al, 2016). The remaining silage from each silo was pre-dried in a forced ventilation oven at 55°C for 72 hours.…”

Section: Methodsmentioning

confidence: 99%

<b>Fermentative characteristics and nutritional value of elephant grass silage added with dehydrated banana peel

Brant

Pimentel

Rigueira

et al. 2017

ABSTRACT. The aim of this study was to evaluate the fermentative losses and nutritional value of elephant grass silages with the increasing of inclusion levels of dehydrated banana peel. The experiment was conducted in a completely randomized design, with six treatments and four replications, being the silage exclusively from elephant grass, and five levels of inclusion of banana peel to the elephant grass silage, as the following -5; 10; 15; 20 and 25%, being added based on natural matter. The addition of the banana peel in the silage reduced linearly (p < 0.05) the pH, the ammoniacal nitrogen and the losses of the fermentative process. In addition, the inclusion of banana peel increased linearly (p < 0.05) the dry matter and non-fibrous carbohydrates. On the other hand, the neutral detergent fiber and the acid detergent fiber were linearly reduced with the inclusion of the banana peel (p < 0.05), but there was no change in the dry matter digestibility in situ. The inclusion of dehydrated banana peel in elephant grass silage reduces the losses of the fermentation process with more consistent results at the 25% inclusion level, however, it reduces the silage nutritional value due to fibrous and protein quality.Keywords: co-product, fermentation, Musa, Pennisetum purpureum.Características fermentativas e valor nutricional da silagem de capim-elefante aditivada com casca de banana desidratada RESUMO. Objetivou-se com este estudo avaliar as perdas fermentativas e o valor nutricional das silagens de capim-elefante com níveis crescentes de inclusão da casca de banana desidratada. O experimento foi conduzido em delineamento inteiramente casualizado, com seis tratamentos e quatro repetições, sendo silagem exclusiva de capim-elefante e cinco níveis de inclusão da casca de banana à silagem de capimelefante -5; 10; 15; 20 e 25%, sendo adicionada com base na matéria natural. A adição da casca de banana na ensilagem reduziu linearmente (p < 0,05) o pH, nitrogênio amoniacal e as perdas do processo fermentativo. Ademais, a inclusão da casca de banana aumentou de forma linear (p < 0,05) a matéria seca e os carboidratos não fibrosos. Já a fibra em detergente neutro e em detergente ácido reduziu linearmente com inclusão da casca de banana (p < 0,05), mas não houve alteração na digestibilidade in situ da matéria seca. A inclusão de casca de banana desidratada na ensilagem do capim-elefante reduz as perdas do processo fermentativo com resultados mais consistentes no nível de 25% de inclusão, entretanto, reduz o valor nutricional por detrimento da qualidade fibrosa e proteica.

“…In this context, sorghum (Sorghum bicolor L) for silage, Buffel grass (Cenchrus ciliaris) for hay and cactus forage (Nopalea cochenillifera) are potential alternatives because they are tolerant to low rainfall, with considerable productive potential, easy to cultivate and nutritional value, being easy to grow (Cardoso et al, 2019;Tolentino et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Forage sources in diets for dairy goats

Ramos

Sousa

Oliveira

et al. 2019

The objective of this study was to evaluate the use of sorghum silage, Buffel grass hay and forage palm fodder in the diet of dairy goats by means of performance tests and economic viability of different roughage sources. Eight Anglo-Nubian goats, multiparous, weighing around 40.13 ± 2.76 kg of live weight were used. The experiment lasted 84 days, consisting of four periods of 21 days, distributed in two Latin squares (4x4). The treatments represented by diets with different volumetric sources: SSCF: (sorghum silage+ forage palm+ concentrate); BHCF: (Buffel grass hay + cactus forage+ concentrate); SS: (sorghum silage+ concentrate) and BH: (Buffel grass hay + concentrate). Nutritional intake, digestibility, feed behavior, milk production and chemical composition and economic analysis were evaluated. Animals fed the BHCF diet had higher nutrient intakes and consequently were more productive in fat, protein, lactose, fat free solids and total solids. The BHCF diet led to a higher gross income in Brazilian currency. The safety margin of the SSCF diet presented the highest percentage, with 43.06%, and the BHCF diet, the lowest percentage, of 14.89. The association of forage palm with sorghum silage and Buffel grass hay can be used as a bulky source in lactating goat diets.