Effects of different stocking density and various phytogenic feed additives dosage levels on growing-finishing pigs

Cho, Hyun Ah; Song, Min Ho; Lee, Ji Hwan; Oh, Han Jin; Kim, Yong Ju; An, Jaewoo; Chang, Se Yeon; Go, Young Bin; Song, Dong Cheol; Cho, Seung Yeol; Kim, Dong Jun; Kim, Mi Suk; Park, Hae Ryoung; Kim, Hyeun Bum; Cho, Jin Ho

doi:10.5187/jast.2023.e19

Cited by 4 publications

(3 citation statements)

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“…The growth performance was further reduced with increasing stocking density. Several studies demonstrated that limiting space allowance decreases feed intake and average daily gain in growing pigs even in optimum environment conditions [49][50][51].…”

Section: Discussionmentioning

confidence: 99%

“…In addition to suboptimal nutrition, the heat stress, the high stocking density, and the high NH3 induce inflammation, oxidative damage to cells, and reduce gut integrity, weakening the immune system of the animals making them more susceptible to infection and less efficient [49,[52][53][54]. NH3 irritates the conjunctiva causing conjunctivitis [55], irritates the mucosal layer of the respiratory system and depresses ciliary activity and mucus flow [56] and damaging trachea [57] which predisposing animals to infection.…”

Section: Discussionmentioning

confidence: 99%

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A Comprehensive Monitoring System for Health Status and Behavior of Pigs Under Different Environmental Conditions Using Vision and Audio Technologies

Lagua,

Mun,

Ampode

et al. 2023

Preprint

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This study aimed to assess the feasibility of employing audio and vision technologies as an integrated monitoring system to monitor the health and behavior of pigs under different environmental conditions and to associate these factors. A total of 81 growing pigs ((Landrace x Largewhite) x Duroc) with distinct weight categories (10.47 ± 2.57 kg and 28.81 ± 5.03 kg) were distributed into two distinct housing conditions: Control (characterized by low NH3 levels and low stocking density) and Treatment (marked by elevated NH3 levels and varying stocking densities). Each house was installed with a SoundTalks monitor for automated daily evaluation of respiratory health status (ReHS), and a camera with a microphone to facilitate manual tracking of respiratory symptoms and behavioral patterns. Results showed that the Treatment group encountered significantly high room temperature, NH3 concentration, and carbon dioxide levels, resulting in compromised growth performance—a phenomenon further exacerbated in high stocking density conditions. Pigs within the treatment exhibited increases (p &lt; 0.05) in lateral and total lying behaviors, and incidences of ear and tail injuries, increases screaming frequency, conjunctivitis incidences, coughing frequency, elevated respiration rates, and a decrease in ReHS. The environmental conditions affect the behavior and health of the pigs. Moreover, the behavioral patterns of the pigs are associated with their health conditions. The SoundTalks system did not trigger any warnings during the experimental period. Nevertheless, trend analysis indicated a significant reduction in respiratory health in the treatment. In conclusion, this study underscores the efficacy of merging audio and visual technologies to holistically monitor pig health and behavior, enabling enhanced management strategies. Findings emphasize that monitoring the ReHS trend serves as a pivotal marker for identifying respiratory health problems, complementing the system's innate alarm functions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

A Comprehensive Monitoring System for Health Status and Behavior of Pigs Under Different Environmental Conditions Using Vision and Audio Technologies

Lagua,

Mun,

Ampode

et al. 2023

Preprint

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show abstract

“…PFAs are plant-derived bioactive compounds with elevated contents of flavonoids, tannins and mucilages with high antioxidant properties [22][23][24]. Additionally, supplementing fish diets with PFAS has been reported to be capable of attenuating different fish species' stress responses [25][26][27][28][29]. Plantderived prebiotic compounds are another variety of functional additives with a potential reinforcing fish antioxidant defense [22,29].…”

Section: Introductionmentioning

confidence: 99%

Functional Additives in a Selected European Sea Bass (Dicentrarchus labrax) Genotype: Effects on the Stress Response and Gill Antioxidant Response to Hydrogen Peroxide (H2O2) Treatment

Serradell

Montero

Terova

et al. 2023

Animals

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Functional ingredients have profiled as suitable candidates for reinforcing the fish antioxidant response and stress tolerance. In addition, selective breeding strategies have also demonstrated a correlation between fish growth performance and susceptibility to stressful culture conditions as a key component in species domestication processes. The aim of the present study is to evaluate the ability of a selected high-growth genotype of 300 days post-hatch European sea bass (Dicentrarchus labrax) juveniles to use different functional additives as endogenous antioxidant capacity and stress resistance boosters when supplemented in low fish meal (FM) and fish oil (FO) diets. Three isoenergetic and isonitrogenous diets (10% FM/6% FO) were supplemented with 200 ppm of a blend of garlic and Labiatae plant oils (PHYTO0.02), 1000 ppm of a mixture of citrus flavonoids and Asteraceae and Labiatae plant essential oils (PHYTO0.1) or 5000 ppm of galactomannan-oligosaccharides (GMOS0.5). A reference diet was void of supplementation. The fish were fed the experimental diets for 72 days and subjected to a H2O2 exposure oxidative stress challenge. The fish stress response was evaluated through measuring the circulating plasma cortisol levels and the fish gill antioxidant response by the relative gene expression analysis of nfΚβ2, il-1b, hif-1a, nd5, cyb, cox, sod, cat, gpx, tnf-1α and caspase 9. After the oxidative stress challenge, the genotype origin determined the capacity of the recovery of basal cortisol levels after an acute stress response, presenting GS fish with a better pattern of recovery. All functional diets induced a significant upregulation of cat gill gene expression levels compared to fish fed the control diet, regardless of the fish genotype. Altogether, suggesting an increased capacity of the growth selected European sea bass genotype to cope with the potential negative side-effects associated to an H2O2 bath exposure.

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Phytogenics enhance welfare and vaccine efficacy against Vibrio anguillarum in European seabass (Dicentrarchus labrax) juveniles

Montero,

Torrecillas,

Serradell

et al. 2024

Aquaculture

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Effects of different stocking density and various phytogenic feed additives dosage levels on growing-finishing pigs

Abstract: Competing interestsNo potential conflict of interest relevant to this article was reported.

Cited by 4 publications

References 44 publications

A Comprehensive Monitoring System for Health Status and Behavior of Pigs Under Different Environmental Conditions Using Vision and Audio Technologies

A Comprehensive Monitoring System for Health Status and Behavior of Pigs Under Different Environmental Conditions Using Vision and Audio Technologies

Functional Additives in a Selected European Sea Bass (Dicentrarchus labrax) Genotype: Effects on the Stress Response and Gill Antioxidant Response to Hydrogen Peroxide (H2O2) Treatment

Phytogenics enhance welfare and vaccine efficacy against Vibrio anguillarum in European seabass (Dicentrarchus labrax) juveniles

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