Sweet Corn Stalk Treated with Saccharomyces Cerevisiae Alone or in Combination with Lactobacillus Plantarum: Nutritional Composition, Fermentation Traits and Aerobic Stability

Abstract

Simple SummaryThe inclusion of Saccharomyces in the ration is beneficial to ruminants. We investigated the effects of inoculating a high-dose S. cerevisiae (108 cfu/g) on the nutritional composition and fermentation traits of sweet corn stalk. A high-dose S. cerevisiae inoculum increased the crude protein concentration of sweet corn stalk silage but decreased the silage quality. Thus, a high-dose S. cerevisiae inoculum is not conducive to obtaining high-quality corn stalk silage.AbstractThis study examined the effects of a high-dose Saccharomyces cerevisiae inoculant alone or jointly with Lactobacillus plantarum on nutrient preservation, fermentation quality, and aerobic stability of sweet corn stalk silage. Fresh stalks (231 g dry matter (DM)/kg) were chopped and subjected to the following treatments: (1) deionized water (Uninoculated; U); (2) S. cerevisiae at 1 × 108 cfu/g of fresh forage (S); and (3) S. cerevisiae at 1 × 108 cfu/g plus L. plantarum at 1 × 105 cfu/g (SL). Treated stalks were ensiled in 5-litre laboratory silos for 30, 60, and 90 day. The S and SL silages had a greater (p < 0.001) pH and greater crude protein, ammonia nitrogen/total nitrogen, neutral detergent fibre, acid detergent fibre, and ethanol contents at all three ensiling periods than the U silage. Acetate, propionate and volatile fatty acids in the S and SL silages after 30 and 90 day of ensiling were greater (p < 0.05) than those in the U silage, but they were lower (p < 0.05) in the S and SL silages than in the U silage after 60 day. The lactate and V-score of the S and SL silages were lower (p < 0.001) than those of the U silage at all three ensiling periods. Compared with the U group, the aerobic stability of the S silage after 90 day of ensiling decreased (p < 0.05), and the aerobic stability of the SL silage was unaffected (p > 0.05). Overall, the quality of sweet corn stalk silage was not improved by inoculation with 108 cfu/g of S. cerevisiae alone or in combination with 1 × 105 cfu/g of L. plantarum.

The Effect of Ensiling on the Nutritional Composition and Fermentation Characteristics of Brown Seaweeds as a Ruminant Feed Ingredient

“…The differences in the chemical profiles observed between the species explained the higher ensilability of SL in comparison with FV ( Figure 5). Principle component analysis (PCA) has recently been used to better understand the factors relating to silage characteristics [46,47] and can be used to correlate silage fermentation traits, chemical composition and the digestibility of different feeds [48]. Our findings suggest that seaweeds characterized by low ADL and TPC had the highest digestibility and ensilable traits, which is in agreement with Herrmann et al [18].…”

Efecto de Saccharomyces cerevisiae y tiempos de fermentación sobre la composición química del ensilado de avena y cebada

“…El factor ensilado y el tiempo de El ligero aumento de FDN y FDA en los ensilajes con S. cerevisiae podría atribuirse en gran parte a la disminución relativa de los carbohidratos fermentables, incluyendo los carbohidratos solubles en agua, el almidón y la pérdida de MS (Zhou et al, 2019). La pared celular de las plantas es la fracción insoluble del forraje después de exponerlo al tratamiento con solución detergente neutro.…”

“…El ensilado es un método eficaz para reducir la pérdida de nutrientes durante el almacenamiento y conservar el forraje fresco para un uso prolongado (Zhou et al, 2019). El uso de aditivos en el ensilado se ha centrado principalmente con fines de mejorar la calidad de la fermentación durante el sellado y la estabilidad aeróbica durante la fase de alimentación (Muck et al, 2018).…”

“…El uso de aditivos en el ensilado se ha centrado principalmente con fines de mejorar la calidad de la fermentación durante el sellado y la estabilidad aeróbica durante la fase de alimentación (Muck et al, 2018). En la práctica, la demanda actual de los aditivos o inoculantes de ensilaje tiene por finalidad mejorar la calidad nutricional y regular la microflora intestinal (Zhou et al, 2019). Saccharomyces cerevisiae es un microorganismo ampliamente utilizado (Shurson, 2018), dado que ayuda a modular el sistema inmunológico de los animales jóvenes (Trckova et al, 2014;Broadway et al, 2015), mejorando la fermentación del rumen (Zhu et al, 2017) y la degradabilidad de los nutrientes del forraje en el intestino (Elghandour et al, 2016).…”

Food and Feed Protein Preparations from Peas and Chickpeas: Production, Properties, Application

“…Основой для культивирования биомассы микроорганизмов служит разнообразное сырье и побочные продукты различных отраслей пищевой промышленности и сельского хозяйства. Так, препарат, полученный в процессе ферментации стеблей кукурузы сахаромицетами или консорциумом сахаромицетов Lactobacillus plantarum с Lactobacillus casei, оказывал положительное влияние на организм животных и окружающую среду [53,54]. Дрожжи, вводимые в корма кур-бройлеров в количестве 0,8 %, также повышали эффективность использования корма [55].…”