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Rabbit breeding, although being a small sector of animal husbandry, is widespread in many areas of the world, as the rabbit is intended both for food (meat) and not food (fur) purposes. The rabbit production chain has to face various problems, mainly concerning animal health and product quality. To overcome these issues, studies using a multidisciplinary approach addressing aspects of the rabbit nutrition and feeding, with a direct impact on the rabbit farming, welfare, health, and meat quality are particularly appreciated and requested by the scientific community. This book is composed of four original papers and one review focused on different nutritional approaches. In particular a phyto-additive (thyme essential oil) and a rabbit-derived bacteriocin-producing strain (Enterococcus faecium CCM7420) with probiotic properties were investigated as new feed additives, while two types of insect fats were studied, in order to understand their effects as dietary replacements for soybean oil and their in vitro antimicrobial activities as alternative raw materials. Results collected in this book will be of particular interest for farmers and animal nutritionists working in the rabbit breeding sector

digestibility --- enzyme activity --- gut histology --- milk replacer --- rabbit --- Enterococcus faecium --- enterocin --- microbiota --- intestinal morphology --- phagocytic activity --- serum biochemistry --- meat quality --- weight gain --- thymol --- bioavailability --- antioxidant --- insect fat --- Hermetia illucens --- Tenebrio molitor --- gut microbiota --- antimicrobial effect --- rabbit feeding --- insoluble fibre --- soluble fibre --- feed efficiency --- whole body and carcass chemical composition --- energy nitrogen and mineral balance --- fibre digestibility --- mucosa morphology --- energy nitrogen and mineral retention efficiency

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Welfare is a multidimensional concept that can be described as the state of an animal as it copes with the environment. Captive environments can impact farmed animals at different levels, especially fishes, considering their highly complex sensory world. Understanding the ethology of a species is therefore essential to address fish welfare, and the interpretation of behavioral responses in specific rearing contexts (aquaculture or experimental contexts) demands knowledge of their underlying physiological, developmental, functional, and evolutionary mechanisms. In natural environments, the stress response has evolved to help animals survive challenging conditions. However, animals are adapted to deal with natural stressors, while anthropogenic stimuli may represent stressors that fishes are unable to cope with. Under such circumstances, stress responses may be maladaptive and cause severe damage to the animal. As welfare in captivity is affected in multiple dimensions, multiple possible indicators can be used to assess the welfare state of individuals. In the past, research on welfare has been largely focusing on health indicators and predominantly based on physiological stress. Ethological indicators, however, also integrate the mental perspective of the individual and have been gradually assuming an important role in welfare research: behavioral responses to stressors are an early response to adverse conditions, easily observable, and demonstrative of emotional states. Many behavioral indicators can be used as non-invasive measurements of welfare in practical contexts such as aquaculture and experimentation. Presently, research in fish welfare is growing in importance and interest because of the growing economic importance of fish farming, the comparative biology opportunities that experimental fishes provide, and the increasing public sensitivity to welfare issues.

n/a --- muscle texture --- fractal analysis --- fish welfare --- Danio rerio --- motivation --- histopathology --- elevated phosphate concentrations --- sharks --- welfare --- African catfish (Clarias gariepinus) --- feed efficiency --- fighting ability --- aggressive interaction --- social rank --- boldness --- ethology --- fisheries management --- physiological response --- FishEthoBase --- welfare scores --- welfare criteria --- stress --- pain --- stereotypical behaviour --- Scyliorhinus canicula --- animal behavior --- welfare enhancement --- social communication --- nociception --- negative and positive affect --- aggression --- fertilisation success --- risk analysis --- aquaculture --- hematology --- Amyloodinium ocellatum --- framework --- structural complexity --- territorial --- growth --- positive welfare --- social stress --- age

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Metabolomics has been a useful method for various study fields. However, its application in animal science does not seem to be sufficient. Metabolomics will be useful for various studies in animal science: Animal genetics and breeding, animal physiology, animal nutrition, animal products (milk, meat, eggs, and their by-products) and their processing, livestock environment, animal biotechnology, animal behavior, and animal welfare. More application examples and protocols for animal science will promote more motivation to use metabolomics effectively in the study field. Therefore, in this Special Issue, we introduced some research and review articles for “Metabolomic Applications in Anmal Science”. The main methods used were mass spectrometry or nuclear magnetic resonance spectroscopy. Not only a non-targeted, but also a targeted, analysis of metabolites is shown. The topics include dietary and pharmacological interventions and protocols for metabolomic experiments.

Research & information: general --- Biology, life sciences --- Technology, engineering, agriculture --- albumen --- breed --- chicken --- feed --- metabolome --- yolk --- arachidonic acid --- omega-3 fatty acids --- lipidomics --- mass spectrometry --- dietary fat --- fatty acid metabolism --- pork --- meat --- skeletal muscle --- fiber type --- cooking --- beef --- Wagyu --- Holstein --- captive giraffes --- urine --- metabolomics --- 1H-NMR --- NMR --- metabotype --- transition --- ketosis --- cattle --- chemometrics --- spectral correction --- authentication --- biomarker --- feeding --- meat quality traits --- metabolite --- postmortem aging --- processing --- chickens --- heat stress --- lipid peroxidation --- orotic acid --- feed efficiency --- biomarkers --- SNPs --- GWAS --- RFI --- pigs --- pathways --- metabolic profile --- transition period --- livestock --- methyl donor --- one-carbon metabolism --- negative energy balance --- pasture legumes --- phytoestrogens --- flavonoids --- coumestans --- polyphenols --- proanthocyanidins --- metabolic profiling --- biosynthesis --- linear model --- transcriptomics --- horse --- metabolomic --- metabolism --- exercise --- saliva --- anabolic practices --- testosterone --- plasma --- CE-TOFMS --- intramuscular fat --- meat quality --- porcine --- albumen --- breed --- chicken --- feed --- metabolome --- yolk --- arachidonic acid --- omega-3 fatty acids --- lipidomics --- mass spectrometry --- dietary fat --- fatty acid metabolism --- pork --- meat --- skeletal muscle --- fiber type --- cooking --- beef --- Wagyu --- Holstein --- captive giraffes --- urine --- metabolomics --- 1H-NMR --- NMR --- metabotype --- transition --- ketosis --- cattle --- chemometrics --- spectral correction --- authentication --- biomarker --- feeding --- meat quality traits --- metabolite --- postmortem aging --- processing --- chickens --- heat stress --- lipid peroxidation --- orotic acid --- feed efficiency --- biomarkers --- SNPs --- GWAS --- RFI --- pigs --- pathways --- metabolic profile --- transition period --- livestock --- methyl donor --- one-carbon metabolism --- negative energy balance --- pasture legumes --- phytoestrogens --- flavonoids --- coumestans --- polyphenols --- proanthocyanidins --- metabolic profiling --- biosynthesis --- linear model --- transcriptomics --- horse --- metabolomic --- metabolism --- exercise --- saliva --- anabolic practices --- testosterone --- plasma --- CE-TOFMS --- intramuscular fat --- meat quality --- porcine