Novel Feed Additives and Feeding Systems in Pig Production

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Pigs".

Deadline for manuscript submissions: closed (31 July 2024) | Viewed by 1964

Special Issue Editor


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Guest Editor
Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Interests: animal nutrition and feed science; breeding pig nutrition and reproduction

Special Issue Information

Dear Colleagues,

In modern swine production, pig health, growth, reproduction and nutrient utilization are increasingly important. These improvements could be achieved by supplementing diets with feed additives. Traditional feed additives such as probiotics, prebiotics, exogenous enzymes, acidifiers, etc. have been used continuously in swine diets and a variety of research has been conducted to develop and evaluate feed additives that can be used as alternatives to antibiotics. In addition, novel feed additives such as bacteriophages, essential oils, cathelicidin, phytogenic feed additives and oligosaccharides have been developed with intensive research conducted to demonstrate their effects and modes of action in pigs for accurate and efficient use in swine diets. The importance of feeding systems, including the feeding type, feeding frequency and feeding pattern, have received increasing attention in the swine industry.

Feed additives and feeding systems are important factors affecting nutrient digestibility, swine growth and reproduction. Therefore, demonstrating the potential effects of these feed additives and feeding systems is of interest in swine nutrition. In-depth research not only evaluating the bioavailability of various feed additives and feeding systems in pigs but also finding interactions among different feed additives, feeding systems, and nutrients is necessary to provide scientific information and evidence and ensure pig health and wellbeing.

For this Special Issue, you are invited to submit either original research papers or review articles evaluating and summarizing the effects of feed additives and feeding systems on pig growth, nutrient utilization, reproduction and gut health. This Special Issue will provide all scientists and producers scientific results to understand the mechanisms of feed additives and feeding systems used for pigs and accumulate further evidence in swine nutrition beyond our current knowledge. It will help swine production and the feed industry to be sustainable.

Dr. Yan Lin
Guest Editor

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Keywords

  • pig/sow
  • feed additive
  • feeding system
  • growth
  • reproduction
  • health

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Published Papers (1 paper)

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Research

11 pages, 269 KiB  
Article
Bioavailability of Supplemented Free Oleanolic Acid and Cyclodextrin–Oleanolic Acid in Growing Pigs, and Effects on Growth Performance, Nutrient Digestibility and Plasma Metabolites
by Manuel Lachica, Isabel Borrás-Linares, Thays Helena Borges, Rosa Nieto, Isabel Seiquer, Consolación García-Contreras, Luis Lara, David Arráez-Román, Antonio Segura-Carretero, José María Pinilla, José Carlos Quintela and Ignacio Fernández-Fígares
Animals 2024, 14(19), 2826; https://doi.org/10.3390/ani14192826 - 30 Sep 2024
Viewed by 940
Abstract
Oleanolic acid (OLA) has beneficial health effects in animals, but in vivo efficacy in monogastric animals is questioned due to its low bioavailability. To gain further insight on the nutritional effects of OLA it was administered as part of a diet. We investigated [...] Read more.
Oleanolic acid (OLA) has beneficial health effects in animals, but in vivo efficacy in monogastric animals is questioned due to its low bioavailability. To gain further insight on the nutritional effects of OLA it was administered as part of a diet. We investigated digestibility and plasma OLA in pigs and the associated influence on growth, organs, digestibility of nutrients and plasma biochemical profile. Twenty-four crossbred barrows (23.7 ± 1.0 kg BW) were assigned one of three treatments: Control (basal diet without OLA), OLA-1 (basal diet with 260 mg/free OLA) and OLA-2 (basal diet with 260 mg/kg cyclodextrin-OLA). Diets included chromium oxide to estimate digestibility. Blood samples were collected on day 14 for OLA analysis and feces on days 22–24 for determining digestibility. Pigs were slaughtered on day 31 (39.9 ± 2.43 kg BW) and their blood collected for analysis. Growth and organ weights were not affected (p > 0.05). OLA-1 decreased apparent total tract digestibility (ATTD) of energy (p < 0.05). OLA-2 increased ATTD of dry and organic matter compared with Control pigs (p < 0.05). OLA-1 increased plasma calcium and alkaline phosphatase (p < 0.05). Ileal digestibility of OLA was not affected (0.88), although OLA ATTD increased in OLA-1 compared to Control pigs (0.75 vs. 0.82; p < 0.05). OLA-1 and OLA-2 increased plasma OLA compared to Control pigs (p < 0.05 and p = 0.083). In conclusion, although the OLA was digested and absorbed, plasma concentration was low (4.29 µg/L), and pig growth, organs and plasma parameters were not affected. Full article
(This article belongs to the Special Issue Novel Feed Additives and Feeding Systems in Pig Production)
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