The genus Roseburia consists of obligate Gram-positive anaerobic bacteria that are slightly curved, rod-shaped and motile by means of multiple subterminal flagella. It includes five species: Roseburia intestinalis, R. hominis, R. inulinivorans, R. faecis and R. cecicola. Gut Roseburia spp. metabolize dietary components that stimulate their proliferation and metabolic activities. They are part of commensal bacteria producing short-chain fatty acids, especially butyrate, affecting colonic motility, immunity maintenance and anti-inflammatory properties. Modification in Roseburia spp. representation may affect various metabolic pathways and is associated with several diseases (including irritable bowel syndrome, obesity, Type 2 diabetes, nervous system conditions and allergies). Roseburia spp. could also serve as biomarkers for symptomatic pathologies (e.g., gallstone formation) or as probiotics for restoration of beneficial flora.

Roseburia spp.: a marker of health?

Environmental and health impacts of using food waste as animal feed: a comparative analysis of food waste management options

Species determination - Can we detect and quantify meat adulteration?

Meat species identification and Halal authentication analysis using mitochondrial DNA.

Fermented liquid feed—Microbial and nutritional aspects and impact on enteric diseases in pigs ☆

PCR primers for the detection of materials derived from ruminants, pigs, and chickens were newly designed on the basis of sequences of the Art2 short interspersed repetitive element (SINE), PRE-1 SINE, and CR1 long interspersed repetitive element (LINE), respectively These primers amplified the SINE or LINE from total DNA extracted from the target animals and from test feed containing commercial meat and bone meal (MBM) With the primers, detection of Art2, PRE-1, or CR1 in test feed at concentrations of 001% MBM or less was possible This method was suitable for the detection of microcontamination of feed by animal materials

PCR detection of DNAs of animal origin in feed by primers based on sequences of short and long interspersed repetitive elements.

There is increasing concern about feeds prepared from food residues (FFR) from an environmental viewpoint; however, various forms of energy are consumed in the production of FFR. Environmental impacts of three scenarios were therefore investigated and compared using life cycle assessment (LCA): production of liquid FFR by sterilization with heat (LQ), production of dehydrated FFR by dehydration (DH), and disposal of food residues by incineration (IC). The functional unit was defined as 1 kg dry matter of produced feed standardized to a fixed energy content. The system boundaries included collection of food residues and production of feed from food residues. In IC, food residues are incinerated as waste, and thus the impacts of production and transportation of commercial concentrate feeds equivalent to the FFR in the other scenarios are included in the analysis. Our results suggested that the average amounts of greenhouse gas (GHG) emissions from LQ, DH, and IC were 268, 1073, and 1066 g of CO(2) equivalent, respectively. The amount of GHG emissions from LQ was remarkably small, indicating that LQ was effective for reducing the environmental impact of animal production. Although the average amount of GHG emissions from DH was nearly equal to that from IC, a large variation of GHG emissions was observed among the DH units. The energy consumption of the three scenarios followed a pattern similar to that of GHG emissions. The water consumption of the FFR-producing units was remarkably smaller than that of IC due to the large volumes of water consumed in forage crop production.

Environmental impact evaluation of feeds prepared from food residues using life cycle assessment.

Fermented liquid feed enhances bacterial diversity in piglet intestine.

The effect of liquid whey feeding on fecal bacteria and their metabolites was assessed in five pregnant sows and 66 growing pigs Sows were fed a control diet for 4 weeks (control period) followed by the same diet but with whey feeding (5 L/day/pig) for 4 weeks (whey period) One group of growing pigs was given 267 L of whey per pig (whey group), while the other group was not (control group) In both cases, liquid whey was given separately from control diet Sows in the whey period had feces showing lower pH, lower ammonia concentration, and larger population sizes of total bacteria, lactobacilli and bifidobacteria The bacterial gene library analysis indicated that Mitsuokella and Megasphaera were more frequently detected, while Clostridium disporicum were detected less frequently in the whey period Feces from whey-fed growing pigs showed lower pH than that from control pigs in the early stage of growing Also, larger populations of total bacteria, lactobacilli and bifidobacteria were recorded in the whey group From the bacterial gene library analysis, the detection frequency of Lactobacillus reuteri tended to be higher in the whey group These results indicate that whey feeding influences the hindgut microbiota of pigs, possibly leading to a fermentation shift that is favorable for animal health

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Effect of liquid whey feeding on fecal microbiota of mature and growing pigs.

Impressions and purchasing intentions of Japanese consumers regarding pork produced by 'Ecofeed', a trademark of food-waste or co-product animal feeds certified by the Japanese government, were investigated by a questionnaire on the Internet. 'Ecofeed' did not elicit specific impressions as compared to domestic, imported, Kurobuta (in Japan), and specific pathogen-free (SPF) pork. Purchasing intent for 'Ecofeed' pork was the second lowest of the five pork products. Knowledge and purchasing experience regarding 'Ecofeed' pork was the lowest of the five pork products. Respondents were classified into four categories according to their impressions of 'Ecofeed' pork. The largest category of respondents did not have any specific impression of 'Ecofeed' pork and had little knowledge of pork farming. A category that had a positive impression for 'Ecofeed' pork had high knowledge of the pork farming system. In order to establish 'Ecofeed' pork in Japan, our results suggest that information disclosure and education about 'Ecofeed', its certification system, environmental benefits and the current self-efficiency ratio of animal feed, are needed.

Impressions and purchasing intentions of Japanese consumers regarding pork produced by ‘Ecofeed,’ a trademark of food‐waste or food co‐product animal feed certified by the Japanese government

Tomoyuki Kawashima

Papers

PCR detection of DNAs of animal origin in feed by primers based on sequences of short and long interspersed repetitive elements.

Environmental impact evaluation of feeds prepared from food residues using life cycle assessment.

Fermented liquid feed enhances bacterial diversity in piglet intestine.

Effect of liquid whey feeding on fecal microbiota of mature and growing pigs.

Impressions and purchasing intentions of Japanese consumers regarding pork produced by ‘Ecofeed,’ a trademark of food‐waste or food co‐product animal feed certified by the Japanese government