Translator Disclaimer
24 July 2020 Pigs weighing less than 20 kg are unable to adjust feed intake in response to dietary net energy density regardless of diet composition
Author Affiliations +
Abstract

This study was conducted to investigate the effects of increasing dietary net energy (NE) density manipulated by either dietary fat or fibre content on growth performance and energy intake in weaned pigs. A total of 60 barrows (8.40 ± 0.91 kg) were randomly allotted to one of five dietary treatments based on initial body weight. The experimental diets contained increasing NE densities (i.e., 9.9, 10.3, and 10.7 MJ NE kg−1) by manipulating either dietary fat or fibre content. Feeding the different dietary treatments did not affect growth performance among dietary treatments. The apparent total tract digestibility of dry matter, gross energy, fat, and neutral detergent fibre of the diets linearly increased (P < 0.05) for weeks 1–3 as dietary NE densities increased. Digestible energy (DE) and NE intake linearly increased (P < 0.01) with increasing dietary NE densities manipulated by dietary fibre content for weeks 2 and 3. A tendency (P = 0.06) for a linear increase in DE and NE intake was observed for weeks 2 and 3 when dietary NE densities were manipulated by fat content. In conclusion, weaned pigs were not able to adjust feed intake in response to dietary NE densities ranging from 9.9 to 10.7 MJ kg−1.

Copyright remains with the author(s) or their institution(s). Permission for reuse (free in most cases) can be obtained from copyright.com.
Jong Woong Kim, Bonjin Koo, and Charles Martin Nyachoti "Pigs weighing less than 20 kg are unable to adjust feed intake in response to dietary net energy density regardless of diet composition," Canadian Journal of Animal Science 101(1), 118-125, (24 July 2020). https://doi.org/10.1139/cjas-2020-0011
Received: 26 January 2020; Accepted: 7 April 2020; Published: 24 July 2020
JOURNAL ARTICLE
8 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top