Quantification of mobilization of body nitrogen and protein requirements of dairy goats in early lactation

Oliveira, Tadeu Silva de; Rodrigues, Marcelo Teixeira

doi:10.1016/j.livsci.2021.104735

Cited by 2 publications

(1 citation statement)

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“…The antioxidant role of d ‐glutamine and d ‐glutamate metabolism has already been confirmed, reducing oxidative stress and free radical injury (Bhandage et al, 2018). In addition, the glucogenic roles of glutamine and alanine can be important in supplying glucose in a negative energy balance (Oliveira & Rodrigues, 2021). Phenylalanine metabolism, a substrate of tyrosine, was altered in the Photonia treatment.…”

Section: Discussionmentioning

confidence: 99%

Improvement of weanling pigs immune status and metabolic condition using ultraweak light

Lee

Hosseindoust

et al. 2023

Animal Physiology Nutrition

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Weaning stress is the most common issue in swine farms, which increases mortality and morbidity. The use of artificial light is an option for modifying the immune system and metabolic pathways. This study aimed to evaluate the influence of ultraweak light (Photonia) on growth performance, immune system and metabolism of weanling pigs, and the carry‐over effect on the growth performance in postweanling growing stages. A total of 30 weaned pigs with an average initial body weight of 7.06 ± 0.11 kg (age: 21 days) were allotted two treatments (Control and Photonia) with 15 replicates. The pelleted form diets were prepared for pigs in three phases including phase 1 (Days 0–14), phase 2 (Days 15–28) and phase 3 (Days 29–48). The gain‐to‐feed ratio (G:F) of pigs was significantly greater in the Photonia treatment. On Day 28, a higher concentration of immunoglobin A (IgA) (p < 0.01) and IgG (p < 0.01) was observed in the Photonia pigs. On Day 48, the Photonia treatment showed a greater serum IgA (p < 0.01) and IgG (p < 0.05). The concentration of interleukin (IL)‐6 was decreased (p < 0.05) in the Photonia treatment. At Day 48, the concentrations of tumour necrotic factor‐α, IL‐1β and IL‐6 in serum were decreased (p < 0.05) in pigs in the Photonia treatment. Metabolic pathways analysis showed that the Photonia treatment increased the d‐glutamine, d‐glutamate, alanine, aspartate, glutamate and phenylalanine compared with the control treatment. In conclusion, the use of Photonia for weanling pigs is recommended due to improved G:F, immune status and activation of amino acids metabolic pathways including d‐glutamine, d‐glutamate, alanine, aspartate, glutamate and phenylalanine.

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Section: Discussionmentioning

confidence: 99%