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Yield, chemical composition, fermentation characteristics, in vitro ruminal variables, and degradability of ensiled amaranth (Amaranthus hypochondriacus) cultivars compared with corn (Zea mays) silage.

Silages from four amaranth varieties (A5, A12, A14, and A28) were compared with corn silage (CS) in terms of their yield, chemical composition, phenolic compounds, oxalic acid and nitrate levels, silage fermentation characteristics, in vitro methane production, organic matter disappearance (OMD), microbial crude protein (MCP), ruminal ammonia (NH3-N), pH, volatile fatty acids, cellulolytic bacteria numbers, protozoa counts, and in situ dry matter (DM) and crude protein (CP) degradability were determined. Forages were harvested 93 d after planting, chopped, and ensiled in plastic buckets for 60…

Development of an UPLC-MS/MS Method for the Analysis of Mycotoxins in Rumen Fluid with and without Maize Silage Emphasizes the Importance of Using Matrix-Matched Calibration.

Ruminants are less susceptible to the effects of mycotoxins than monogastric animals as their rumen microbiota are claimed to degrade and/or … uantitative determination in the rumen fluid of some of the most relevant mycotoxins found in maize silage in Western Europe: deoxynivalenol (DON), nivalenol (NIV), zearalenone (ZEN), mycophenolic acid (MPA), roquefortine C (ROQ-C) and enniatin B (ENN B), as well as their metabolites deepoxy-deoxynivalenol (DOM-1), α-zearalenol (α-ZEL), β-zearalenol (β-Z …

Co-ensiling corn silage with Pleurotus-based spent mushroom substrate and oilseeds: Impacts on rumen fermentation, digestibility, and methane emissions in a RUSITEC system.

The present study examined the effects of partially replacing corn silage (CS) with Pleurotus-based spent mushroom substrate (SMS) and oilseeds (OS) on rumen fermentation characteristics, nutrient digestibility, volatile fatty acid (VFA) profiles, and greenhouse gas emissions using a rumen simulation technique (RUSITEC). Four silages were evaluated: A control diet containing 100% CS and three co-ensiled treatments in which CS was partially replaced with Pleurotus-based SMS and OS. The oilseed fraction consisted of equal proportions of soybean and canola seeds. The treatments were: CS90 (90% CS…

Inclusion of Fermented Cassava Top and Root with Inoculation in Total Mixed Ration Silage Diets: Ensilage Quality and Nutrient Digestibility of Backgrounding Crossbred Bulls.

The use of cassava as a feed resource is the main focus of strategies that aim to increase the efficiency of beef cattle. In this study, the ratio of fresh cassava tops to roots (CTR) was 1:1, 1:2, 1:3, and 1:4 w/w, in addition to the incorporation of yeast and lactic acid bacteria (YL). CTRS was inoculated in vitro with rumen fluid and a substrate mixture to evaluate the gas production and fermentation quality. In vivo, crossbred beef cattle were randomly allocated to three dietary treatments: a control group and two groups that received total mixed ration (TMR) silage with either 35% or 70% …

Effects of antioxidant-rich Lactiplantibacillus plantarum inoculated alfalfa silage on rumen fermentation, antioxidant and immunity status, and mammary gland gene expression in dairy goats.

BACKGROUND: Milk synthesis in lactating animals demands high energy metabolism, which results in an increased production of reactive oxygen metabolites (ROM) causing an imbalance between oxidants and antioxidants thereby inducing oxidative stress (OS) on the animals. To mitigate OS and postpartum disorders in dairy goats and gain insight into the impact of dietary choices on redox status during lactation, a feeding trial was conducted using alfalfa silage inoculated with a high-antioxidant strain of Lactiplantibacillus plantarum. METHODS: Twenty-four Guanzhong dairy goats (38.1 ± 1.20 kg) wer…

Effects of substituting kraft pulp with corn silage on dry matter intake, ruminal mat formation, rumen fermentation, and rumination activity in non-lactating cows.

The present study examined the effects of substituting kraft pulp (KP) with corn silage (CS) on dry matter intake (DMI), ruminal mat and rumen fermentation characteristics, and rumination. Four non-lactating, rumen-cannulated Holstein cows were fed a CS diet comprising 36% grass silage (GS) and 64% CS or a KP diet comprising 36% GS, 57% KP, and 7% soybean meal. DMI was significantly lower in cows fed the KP diet than in those fed the CS diet (p < 0.05), whereas rumination time did not significantly differ between the treatments. Dry matter content in the rumen immediately before and 3 h after …

Effects of diets containing alfalfa hay or barley flour mixed alfalfa silage on feeding behavior, productivity, rumen fermentation and blood metabolites in lactating cows.

The effects of barley flour on the fermentation parameters of alfalfa silage and on the productivity of dairy cows were investigated. Alfalfa forage was ensiled either with or without barley flour. Barley flour was soaked in water for 24 h before being mixed with alfalfa (12 kg: 100 kg dry matter bases) at ensiling. Eighteen multi-parous cows were assigned to three equal treatment groups using a completely randomized design. Three isocaloric and isonitrogenous total mixed rations containing alfalfa hay, ordinary alfalfa silage or barley flour mixed alfalfa silage were then prepared. The concen…

Effects of the Temperature and Limosilactobacillus fermentum Co-Inoculation on the Expression of AFB1-Synthesis Genes and the Level of Toxin Produced by Aspergillus flavus Zt41 in Corn Silage.

Aflatoxin B1 (AFB1), a highly potent Group 1 human carcinogen produced by Aspergillus flavus (A. flavus), poses a significant contamination risk to corn silage, a threat that is further intensified by rising global temperatures. This study aimed to characterize the combined effects of temperature and co-inoculation with the lactic acid bacterium Limosilactobacillus fermentum (L. fermentum) on AFB1 production and the expression of key biosynthetic genes in A. flavus colonizing corn silage. Corn silage was incubated at 20 °C, 30 °C, and 37 °C with and without L. fermentum. Using qRT-PCR and HPLC…

The Microbiota Dynamics of Alfalfa Silage During Ensiling and After Air Exposure, and the Metabolomics After Air Exposure Are Affected by Lactobacillus casei and Cellulase Addition.

Both inoculants treatment and enzyme treatment promote the reproduction of lactic acid bacteria (LAB) to produce enough lactic acid to lower pH in silage. The present study investigated the microbial community and metabolome in cellulase, Lactobacillus casei, and air treated alfalfa silage. Chopped and wilted alfalfa (first cutting, 29% dry matter) was ensiled without (CON) or with L. casei (1 × 106 cfu g-1 fresh matter) (LC) or cellulase (20,000IU, 0.5% of fresh matter) (CE) for 56 days, then exposed to air for 3 days (PO). Greater ensiling quality was observed in LC and CE, which had lower p…

Aspergillus fumigatus population dynamics and sensitivity to demethylation inhibitor fungicides in whole-crop corn, high moisture corn and wet grain corn silages.

BACKGROUND: Aspergillus fumigatus, the causal agent of aspergillosis in humans, is commonly present as a saprophyte in various organic substrates, such as spoiled silages. Aspergillosis is generally combated with demethylation inhibitor (DMI) fungicides, but the recent appearance of resistant medical and environmental strains made current treatment strategies less reliable. The goal of this study was to determine the evolution of A. fumigatus populations during the ensiling process of whole-crop corn, high moisture corn and wet grain corn, and to monitor the sensitivity of isolates from treate…

The coexistence of Lactiplantibacillus and Wickerhamomyces in sugarcane top silage drives potential pathogen suppression and aerobic stability through enhanced lactic acid and acetic acid production

Abstract To identify the key coexisting bacteria and yeast in sugarcane top silage that determine fermentation quality and improve feed safety, this study reintroduced a suspension of epiphytic microorganisms from sugarcane tops after antimicrobial treatment [inhibiting epiphytic yeasts (AF) and lactic acid bacteria (AB), respectively] into fresh sugarcane tops sterilized by γ-ray irradiation for re-ensilage. Untreated (CK) and γ-ray sterilized (NA) silage served as controls. High-yield production of lactic acid and acetic acid, better aerobic stability, and high Lactiplantibacillus abundance …

Growth performance and nutrient digestibility of beef heifers fed sorghum silage processed at harvest and stored for less than five months or over one year.

This study evaluated the effects of feeding sorghum silage (SS), either processed (PRO) or not (NPR) at harvest, on animal performance, apparent total tract digestibility (ATTD), and in situ nutrient degradability (ISND). The sorghum plant was harvested when the kernels were at the hard dough stage and kernel processing was applied or not prior to ensiling. Kernel processing was done with 110-tooth rolls, at 1.1 mm gap, and 50% speed differential, yielding a theoretical length of cut of 15 mm. On a dry matter (DM) basis, diets contained 90.5% SS, 6.5% soybean expeller, and 3% vitamin-mineral s…

Сосуществование Лактиплантацилла и Виккерхамомиц в верхнем слое сахарного тростника стимулирует потенциальное подавление патогенов и аэробную стабильность за счет увеличения производства лактической кислоты и уксусной кислоты.

Чтобы определить сосуществующие бактерии и дрожжи в верхнем слое сахарного тростника, которые определяют качество ферментации и повышают безопасность корма, мы манипулировали эпифитической микробиотой сверху сахарного тростника путем селективного подавления дрожжей (АФ) или бактерий с лактической кислотой (АБ) перед повторной цензурой, используя в качестве контроля неочищенные (КК) и стерилизованные стерилизованные силизы (НА). Результаты показывают, что высокоурожайное производство лактической кислоты и уксусной кислоты (p) < 0.05), лучшая аэробная стабильность и высокая плотность Лактипланта

Совпадение в аннотации оригинала
To identify the key coexisting bacteria and yeast in sugarcane top silage that determine fermentation quality and improve feed safety, we manipulated the epiphytic microbiota of sugarcane tops by selectively inhibiting yeasts (AF) or lactic acid bacteria (AB) before re-ensiling, using untreated (CK) and γ‑ray sterilized silages (NA) as controls. The results …

Effects of corn variety in whole-plant corn silage on dry matter intake, average daily gain and gastrointestinal tract bacteria and metabolites in Hu lambs.

INTRODUCTION: Whole-plant corn silage (WPCS) is an important roughage source in ruminant nutrition, and its nutritional value can vary significantly with corn variety. Understanding how different WPCS varieties influence gastrointestinal microbiota and metabolic profiles is essential for optimizing feed efficiency and animal health. METHODS: This study examined the effects of three corn varieties (2 introduced - Tunyu 168: TY; Yu silage 23: YQZ, and 1 local Longsheng 1: LS) in WPCS on gastrointestinal bacteria and metabolites in lambs. Thirty 4-month-old female Hu lambs (19.6 ± 0.26 kg) were …

Substitution rate and milk yield response to corn silage supplementation of late-lactation dairy cows grazing low-mass pastures at 2 daily allowances in autumn.

Feed costs in dairy production systems may be decreased by extending the grazing season to periods such as autumn when grazing low-mass pastures is highly probable. The aim of this autumn study was to determine the effect of corn silage supplementation [0 vs. 8 kg of dry matter (DM) of a mixture 7:1 of corn silage and soybean meal] on pasture intake (PI), milk production, and grazing behavior of dairy cows grazing low-mass ryegrass pastures at 2 daily pasture allowances (PA; low PA=18 vs. high PA=30 kg of DM/cow above 2.5 cm). Twelve multiparous Holstein cows were used in a 4 × 4 Latin square …

Effects of brown midrib 3 mutation in corn silage on productivity of dairy cows fed two concentrations of dietary neutral detergent fiber: 2. Chewing activities.

The effects of digestibility of corn silage neutral detergent fiber (NDF) and dietary NDF content on chewing activities were evaluated with eight multiparous high producing dairy cows in a duplicated 4 x 4 Latin square design with 21-d periods. Experimental diets contained corn silage from a brown midrib (bm3) hybrid or its isogenic normal control at two concentrations of dietary NDF (29 and 38%). The NDF digestibility estimated by 30-h in vitro fermentation was higher for bm3 corn silage by 9.4 units (55.9 vs. 46.5%). Feeding behavior of animals and ruminal pH were monitored continuously for …

Technical note: quantification of zeins from corn, high-moisture corn, and corn silage using a turbidimetric method: comparative efficiencies of isopropyl and tert-butyl alcohols.

Zeins are corn endosperm storage proteins that encapsulate starch granules into a protein matrix, which can act as a barrier to starch acces … OH-mTM) was able to improve the quantification of zeins from dry corn, high-moisture corn, and corn silage samples. The nature of the alcohol influenced the zein extraction values, and t-BuOH-mTM gave higher zein values in corn (3.6 vs. 3.3 g/100 g of dry matter) and corn silage samples (1.2 vs. 0.9 g/100 g of dry matter) compared with i-PrOH-mTM. In con …

Listeriosis in sheep. Listeria monocytogeńes in sheep fed hay or grass silage during pregnancy. Immunological state, white blood cells, total serum protein and serum iron.

A comparison was made between a hay fed group, consisting of 23 ewes, and a grass silage fed group of 22 ewes, all pregnant. Excretion of Listeria monocytogenes (Lm) in the faeces and milk, antibody titres in sera and whey and delayed hypersensitivity against Lm, and several blood components were determined. The animals had previously been exposed to Lm, and Lm was isolated from the faeces from several animals when the experiment started. No significant difference in number of excretors between the 2 groups was found during the experimental period. The haemagglutination titres in both sera and…

The Effects of C4 Forage Silage with Different Water-Soluble Carbohydrate Contents on the Growth Performance, Apparent Digestibility, Rumen Fermentation, and Rumen Microbial Community of Buffaloes.

Water-soluble carbohydrate (WSC) is the key to producing quality forage silage and an important energy source for ruminants. The aim of this study was to investigate the effect of different silages used as roughage sources [whole-plant sugarcane silage (WSS) vs. elephant grass silage (EGS)] with varying levels of WSC on silage quality, buffalo growth performance, apparent digestibility, rumen fermentation, and microbial communities. Sixteen healthy male crossbred buffaloes were randomly divided into two treatment groups, with eight buffaloes/treatment. One group was fed whole-plant sugarcane s…

Substituting corn silage with reconstituted forage or nonforage fiber sources in the starter feed diets of Holstein calves: Effects on intake, meal pattern, sorting, and health.

We examined the effect of replacing corn silage (CS) with reconstituted alfalfa hay (RAH) or reconstituted beet pulp (RBP) in the starter diets on feeding behavior, sorting, and health criteria using 54 neonatal female Holstein calves that were assigned randomly to 3 groups receiving starter diets containing CS (10% on a dry matter basis), RAH, or RBP. The starter diets had the same nutrient composition and moisture level but differed in particle size distribution. Calves fed CS tended to have a lower intermeal interval compared with calves fed RAH before weaning; however, meal frequency and d…