Lactobacillus plantarum LPBR01 as inoculant in sugarcane silage

Sugar cane is highly productive (dry matter.hectare-1), but after ensiling process nutritional quality is affected, thus additives are needed to control or minimize losses. This study aimed to evaluate if Lactobacillus plantarum LPBR01 strain used as silage inoculant for sugar cane can control fermentation losses. Sugar cane samples (72) were divided in two treatments with three replicates, control (no Lactobacillus) and treatment silage with Lactobacillus (106 CFU g-1 of silage). Nutritional composition of samples in different periods of fermentation (0, 7, 15, 30 and 45 days) was estimated by determining levels of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HEM), mineral matter (MM) and acid detergent lignin (ADL). Fermentative profile of the silage was characterized by determining sugars, ammoniacal nitrogen, acidity and pH at 0, 12, 24, 36, 48, 60 and 72 hours. Inoculation of sugar cane silage with Lactobacillus plantarum LPBR01 strain presented no significant results (p ≤ 0, 5) however, interaction between treatment and day (p ≤ 0, 5) could be observed for the levels of ADF. The Lactobacillus plantarum LPBR01 strain was not efficient to control the fermentation losses that occur in the silages of sugar cane at the concentration used in this study.(AU)

Lactobacillus plantarum LPBR01 as inoculant in sugarcane silage

Sugar cane is highly productive (dry matter.hectare-1), but after ensiling process nutritional quality is affected, thus additives are needed to control or minimize losses. This study aimed to evaluate if Lactobacillus plantarum LPBR01 strain used as silage inoculant for sugar cane can control fermentation losses. Sugar cane samples (72) were divided in two treatments with three replicates, control (no Lactobacillus) and treatment silage with Lactobacillus (106 CFU g-1 of silage). Nutritional composition of samples in different periods of fermentation (0, 7, 15, 30 and 45 days) was estimated by determining levels of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HEM), mineral matter (MM) and acid detergent lignin (ADL). Fermentative profile of the silage was characterized by determining sugars, ammoniacal nitrogen, acidity and pH at 0, 12, 24, 36, 48, 60 and 72 hours. Inoculation of sugar cane silage with Lactobacillus plantarum LPBR01 strain presented no significant results (p ≤ 0, 5) however, interaction between treatment and day (p ≤ 0, 5) could be observed for the levels of ADF. The Lactobacillus plantarum LPBR01 strain was not efficient to control the fermentation losses that occur in the silages of sugar cane at the concentration used in this study.

AVALIAÇÃO NUTRICIONAL DA SILAGEM DE AZEVÉM (Lolium multiflorum, LAM.) EM DIFERENTES TEMPOS DE DESIDRATAÇÃO DA MASSA VERDE EM DIFERENTES ESTÁDIOS FENOLÓGICOS

O presente estudo teve por objetivo avaliar a qualidade nutricional da silagem de azevém confeccionada em diferentes tempos de desidratação e em diferentes estádios fenológicos, como também determinar sua degradabilidade e curva de degradação ruminal. Para a confecção da silagem, foram aplicados 6 tratamentos distintos em diferentes momentos de desenvolvimento da forrageira: vegetativo: cortar e ensilar; cortar e ensilar após 4 hs de secagem; cortar e ensilar após 7 hs de secagem. Pré-florescimento: cortar e ensilar; cortar e ensilar após 4 hs de secagem; Florescimento: cortar e ensilar. O delineamento experimental foi o inteiramente casualizado, com 6 tratamentos e 4 repetições. Foram avaliados, composição química, digestibilidade in vitro e in situ, além da curva de degradabilidade ruminal. A desidratação auxiliou na perda de umidade da forragem, com perda de nitrogênio no vegetativo. A digestibilidade da massa ensilada de azevém foi influenciada, tanto pelos tempos de desidratação, quanto pela idade da planta. O uso da ensilagem no vegetativo apresenta vantagens quanto à qualidade química e degradabilidade ruminal. Ainda possibilita a realização de mais colheitas de material devido a capacidade de rebrota, o que não ocorre em outros estádios fenológicos

This study aimed to evaluate the nutritional quality of ryegrass silage at different times of pre-dehydration and different growth stages, as well as determine its degradability and ruminal degradation curve. For silage, it were applied 6 different treatments at different times of forage growth: on Vegetative: T0: cut and silage; T1: cut and ensiled after 4 hours of drying; T2: cut and ensiled after 7 hours of drying. On Pre-flowering: T0: cut and silage; T1: cut and ensiled after 4 hours of drying. On flowering: T0: cut and silage. The experimental design was completely randomized with 6 treatments and 4 repetitions. It were evaluated, chemical composition, in vitro digestibility and in situ degradability, besides the ruminal degradation curve. Dehydration aid at moisture loss of fodder, with losses of nitrogen on vegetative. The digestibility of ryegrass silage was influenced by both dehydration times and age of plant. The use of silage on vegetative has advantages for chemical quality and ruminal degradability. It also enables the realization of more biomass crop due to regrowth capacity, which does not occur in other growth stages.