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IMPACT OF TWO DIETS WITH DIFFERENT VEGETABLE PROTEIN CONTENT ON GASTROINTESTINAL AMINO ACID SENSING AND FEED INTAKE REGULATION IN RAINBOW TROUT

The regulation of feed intake in fish is dependent upon different neuroendocrine and metabolic mechanisms including amino acid sensing occurring in the gastrointestinal tract. In previous studies, we demonstrated the impact of specific amino acids alone on such mechanisms and their impact on feeding regulation. However, there is no information…
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DIETARY DISCRIMINATION USING A DUAL-CHOICE SELF-FEEDING SYSTEM IN SEABREAM (SPARUS AURATA)

Self-feeding systems have been extensively used to study animal behaviour and food preferences in vertebrates. In this study, we used a dual-choice self-feeding system to explore feeding behaviour and dietary discrimination based on organoleptic cues. Experimental tanks were provided with 2 self-feeders activated by string sensors and connected to a…
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A STANDARDIZED OLIVE POMACE EXTRACT MAINTAINED SIMILAR PIGLET GROWTH PERFORMANCE TO HIGH LEVELS OF ZnO

The impending EU ban on using high ZnO levels (3,000 ppm) in weanling pig diets has accelerated the search for alternative solutions aiming to prevent post-weaning diarrhea while maintaining piglet performance in the nursery period. A standardized olive pomace extract (PE1, recommended dose: 0.25%), with anti-inflammatory properties, and a rosemary…
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THE PHYSIOLOGICAL IMPACT OF TOTAL FISH MEAL REPLACEMENT WITH SOYBEAN MEAL IN RAINBOW TROUT (ONCORHYNCHUS MYKISS) DIETS: NEW CLUES FROM CIRCULATING miRNAs

Aquaculture long-term sustainability depends on the successful replacement of fish meal (FM) by alternative raw materials. Until now, FM replacement without compromising growth and/or wellbeing has been generally limited to 50-75% in most carnivorous fish species. FM replacement is still majorly based on vegetable protein sources, particularly on soybean meal…
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SYSTEMATIC REVIEW OF ANIMAL-BASED INDICATORS TO MEASURE THERMAL, SOCIAL, AND IMMUNE-RELATED STRESS IN PIGS

The intense nature of pig production has increased the animals’ exposure to stressful conditions, which may be detrimental to their welfare and productivity. Some of the most common sources of stress in pigs are extreme thermal conditions (thermal stress), density and mixing during housing (social stress), or exposure to pathogens…
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ILEUM TRANSCRIPTOMIC PROFILING POST-WEANING PINPOINTS DIFFERENCES IN INTESTINAL PHYSIOLOGICAL STATUS AND MATURITY BETWEEN LIGHT AND HEAVY WEIGHT WEANED PIGLETS

Today’s swine industry increasingly relies on hyperprolific sows, entailing challenges related to heterogeneous and numerous litters having lower viability and poorer adaptation to weaning. This study compared the intestinal transcriptome of piglets with differences in body weight (BW) at weaning, to explore mechanisms underlying differences in adaptation and growth during…
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POTENTIAL OF ORAL NANOPARTICLES CONTAINING CYTOKINES AS INTESTINAL MUCOSA IMMUNOSTIMULANTS IN PIGS: A PILOT STUDY

Antimicrobial resistance is a global threat that is worryingly rising in the livestock sector. Among the proposed strategies, immunostimulant development appears an interesting approach to increase animal resilience at critical production points. The use of nanoparticles based on cytokine aggregates, called inclusion bodies (IBs), has been demonstrated as a new…
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EFFECTS OF HIGH STARCH AND SUPPLEMENTATION OF AN OLIVE EXTRACT ON THE GROWTH PERFORMANCE, HEPATIC ANTIOXIDANT CAPACITY AND LIPID METABOLISM OF LARGEMOUTH BASS (MICROPTERUS SALMOIDES)

An 8-week feeding trial was conducted to investigate the effects of high-starch diets and the supplementation of an olive extract (OE) on the growth performance, liver health and lipid metabolism of largemouth bass (Micropterus salmoides). Four isonitrogenous and isolipidic diets were prepared: two basal diets containing low (9.0%) and high…
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EVALUATION DE LA CONDITION PHYSIOLOGIQUE DE PORCELETS SEVRÉS APRÈS EXPOSITION AU STRESS SOCIAL

Weaning stress causes gut-barrier dysfunction partly by triggering the release of corticotropin releasing factor (CRF) and thereby inducing degranulation of intestinal mast cells, which in turn results in intestinal dysfunction that compromises piglet’s welfare. The aim of this study was to evaluate how mixing (social stress) influences the physiological condition…
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