Academic Journal
Increased dietary Trp, Thr, and Met supplementation improves growth performance and protein deposition of salmonella-challenged growing pigs under poor housing conditions
| العنوان: | Increased dietary Trp, Thr, and Met supplementation improves growth performance and protein deposition of salmonella-challenged growing pigs under poor housing conditions |
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| المؤلفون: | Alves da Cunha Valini, Graziela, Righetti Arnaut, Pedro, França, Ismael, Trevisan Ortiz, Manoela, Karpeggiane de Oliveira, Marllon José, Brandão Melo, Antonio Diego, Alves Marçal, Danilo, Reis Furtado Campos, Paulo Henrique, Khun Htoo, John, Gastmann Brand, Henrique, Hauschild, Luciano |
| المصدر: | Journal of Animal Science ; volume 101 ; ISSN 0021-8812 1525-3163 |
| بيانات النشر: | Oxford University Press (OUP) |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Genetics, Animal Science and Zoology, General Medicine, Food Science |
| الوصف: | Highly intensified rearing conditions and precarious sanitary management predispose pigs to immune system activation, altered amino acid (AA) metabolism, and decreased growth performance. Thus, the main objective of this study was to evaluate the effects of increased dietary tryptophan (Trp), threonine (Thr), and methionine + cysteine (Met + Cys) supplementation on performance, body composition, metabolism, and immune responses of group-housed growing pigs under challenging sanitary conditions. A hundred and twenty pigs (25.4 ± 3.7 kg) were randomly assigned to a 2 × 2 factorial arrangement, consisting of two sanitary conditions (SC, good [GOOD] or salmonella-challenge and poor housing condition [Salmonella Typhimurium (ST) + POOR]) and two diets, control (CN) or supplemented with AA (Trp, Thr, and Met + Cys:Lys ratios 20% higher than those of the CN diet [AA>+]). Pigs were followed during the growing phase (25–50 kg) and the trial lasted 28 d. The ST + POOR SC pigs were challenged with Salmonella Typhimurium and raised in a poor housing condition. The ST + POOR SC increased rectal temperature, fecal score, serum haptoglobin, and urea concentration (P < 0.05) and decreased serum albumin concentration (P < 0.05) compared with GOOD SC. Body weight, average daily feed intake, average daily gain (ADG), feed efficiency (G:F), and protein deposition (PD) were greater in GOOD SC than in ST + POOR SC (P < 0.01). However, pigs housed in ST + POOR SC fed with AA+ diet had lower body temperature (P < 0.05), increased ADG (P < 0.05) and nitrogen efficiency (P < 0.05), and a tendency for improved PD and G:F (P < 0.10) compared with CN diet fed pigs. Regardless of the SC, pigs fed AA+ diet had lower serum albumin (P < 0.05) and tended to decrease serum urea levels (P < 0.10) compared with CN diet. The results of this study suggest that the ratio of Trp, Thr, and Met + Cys to Lys for pigs are modified by sanitary conditions. Furthermore, ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1093/jas/skad141 |
| DOI: | 10.1093/jas/skad141/50203761/skad141.pdf |
| DOI: | 10.1093/jas/skad141/50425818/skad141.pdf |
| الاتاحة: | http://dx.doi.org/10.1093/jas/skad141 https://academic.oup.com/jas/advance-article-pdf/doi/10.1093/jas/skad141/50203761/skad141.pdf https://academic.oup.com/jas/article-pdf/doi/10.1093/jas/skad141/50425818/skad141.pdf |
| Rights: | https://academic.oup.com/pages/standard-publication-reuse-rights |
| رقم الانضمام: | edsbas.FEE37778 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1093/jas/skad141 |
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