Effect of high temperature on feeding behaviour and heat production in group-housed young pigs

Collin, Anne; Milgen, Jaap van; Dubois, Serge; Noblet, Jean

doi:10.1079/bjn2001356

Cited by 147 publications

(124 citation statements)

References 25 publications

Supporting

Mentioning

105

Contrasting

Unclassified

Order By: Relevance

“…Effects of the heat stress on the electron transport chain gene expression Our performance results are in accordance with several studies which demonstrated negative impacts of high temperatures on pig performance in growing and finishing pigs (Quiniou et al, 2000;Collin et al, 2001a;Renaudeau et al, 2012), including reduced voluntary daily feed intake and daily weight gain (Collin et al, 2001b;Kerr et al, 2003;Renaudeau et al, 2011). In contrast, very little has been published on the effects of the thermal environment on the regulation of genes involved in energy metabolism.…”

Section: Discussionsupporting

confidence: 76%

“…Several studies have demonstrated that high temperatures have negative effects on the performance of pigs during most phases of production (Quiniou et al, 2000;Collin et al, 2001a;Renaudeau et al, 2011), but there is little information about the changes in muscular energy metabolism in heat-stressed pigs (Rinaldo and Dividich, 1991;Collin et al, 2001b) or on the interaction between dietary levels of aP and the thermal environment to which the animals are submitted.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of heat stress and feeding phosphorus levels on pig electron transport chain gene expression

Weller

Alebrante

Campos

et al. 2013

Animal

View full text Add to dashboard Cite

The purpose of this study was to evaluate the effect of temperature and different levels of available phosphorus (aP) on the expression of nine genes encoding electron transport chain proteins in the Longissimus dorsi (LD) muscle of pigs. Two trials were carried out using 48 high-lean growth pigs from two different growth phases: from 15 to 30 kg (phase 1) and from 30 to 60 kg (phase 2). Pigs from growth phase 1 were fed with three different levels of dietary aP (0.107%, 0.321% or 0.535%) and submitted either to a thermoneutral (24°C and RH at 76%) or to a heat stress (34°C and RH at 70%) environment. Pigs from growth phase 2 were fed with three different levels of dietary aP (0.116%, 0.306% or 0.496%) and submitted either to a thermoneutral (22ºC and RH at 77%) or to a heat stress (32ºC and RH at 73%) environment. Heat stress decreased (P < 0.001) average daily feed i ntake at both growth phases. At 24°C, pigs in phase 1 fed the 0.321% aP diet had greater average daily gain and feed conversion (P < 0.05) than those fed the 0.107% or 0.535% while, at 34°C pigs fed the 0.535% aP had the best performance (P < 0.05). Pigs from phase 2 fed the 0.306% aP had best performance in both thermal environments. Gene expression profile was analyzed by quantitative real-time polymerase chain reaction. Irrespective of growing phase, the expression of six genes was lower (P < 0.05) at high temperature than at thermoneutrality. The lower expression of these genes under high temperatures evidences the effects of heat stress by decreasing oxidative metabolism, through adaptive physiological mechanisms in order to reduce heat production. In pigs from phase 1, six genes were differentially expressed across aP levels (P < 0.05) in the thermoneutral and one gene in the heat stress. In pigs from phase 2, two genes were differentially expressed across aP levels (P < 0.05) in both thermal environments. These data revealed strong evidence that phosphorus and thermal environments are key factors to regulate oxidative phosphorylation with direct implications on animal performance.Keywords: nutrigenomics, oxidative phosphorylation, pig production, heat stress and animal production, phosphorous levels for pig nutrition ImplicationsData from this study are the first to reveal the effects of different available phosphorus (P) levels in Longissimus dorsi gene expression related to oxidative phosphorylation and its implications on pig performance. Moreover, this study showed the effects of high temperatures on the expression of these genes and how this may alter the physiological response to P. This information will contribute to better understand the role of P in energy metabolism and will bring new insights into the comprehension of the effects of high temperatures on nutritional requirements and mitochondrial function.

show abstract

Section: Discussionsupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Effect of heat stress and feeding phosphorus levels on pig electron transport chain gene expression

Weller

Alebrante

Campos

et al. 2013

Animal

View full text Add to dashboard Cite

show abstract

“…These results suggest that elevated temperatures affect nutrients digestibility when the range of temperature between thermoneutral and hot treatment is greater than 88C. Similarly, Collin et al (2001b) observed an increase of DM, N and energy digestibility coefficients between 238C and 338C in temperature-acclimated young pigs. In this study, the effect of temperature on nutrient digestibility was not significant when pigs at 238C and 338C received the same amount of feed, suggesting that the increase of DM and N digestibility was mainly related to the reduced feeding level in hot conditions.…”

Section: Discussionsupporting

confidence: 52%

Effect of temperature level on thermal acclimation in Large White growing pigs

Renaudeau

Kerdoncuff

Anais³

et al. 2008

Animal

View full text Add to dashboard Cite

The effect of temperature level (248C, 288C, 328C or 368C) on performance and thermoregulatory response in growing pigs during acclimation to high ambient temperature was studied on a total of 96 Large White barrows. Pigs were exposed to 248C for 10 days (days 210 to 21, P0) and thereafter to a constant temperature of 248C, 288C, 328C or 368C for 20 days. Pigs were housed in individual metal slatted pens, allowing a separate collection of faeces and urine and given ad libitum access to feed. Rectal (RT) and cutaneous (CT) temperatures and respiration rate (RR) were measured three times daily (0700, 1200 and 1800 h) every 2 to 3 days during the experiment. From day 1 to 20, the effect of temperature on average daily feed intake (ADFI) and BW gain (average daily gain, ADG) was curvilinear. The decrease of ADFI averaged 90 g/day per 8C between 248C and 328C and 128 g/day per 8C between 328C and 368C. The corresponding values for ADG were 50 and 72 g/day per 8C, respectively. The 20 days exposure to the experimental temperature was divided in two sub-periods (P1 and P2, from day 1 to 10 and from day 11 to 20, respectively). ADFI was not affected by duration of high-temperature exposure (i.e. P2 v. P1). The ADG was not influenced by the duration of exposure at 248C and 288C groups. However, ADG was higher at P2 than at P1 and this effect was temperature dependent (1130 and 1458 g/day at 328C and 368C, respectively). In P2 at 368C, dry matter digestibility significantly increased (12.1%, P , 0.01); however, there was no effect of either duration or temperature on the digestibility of dry matter at group 248C and 328C. RT, CT and RR were measured three times daily (0700, 1200 and 1800 h) every 2 to 3 days during the experiment. Between 288C and 368C, RT and CT were lower during P2 than during P1 (20.208C and 20.238C; P , 0.05), whereas RR response was not affected by the duration of exposure whatever the temperature level. In conclusion, this study suggests that the effect of elevated temperatures on performance and thermoregulatory responses is dependent on the magnitude and the duration of heat stress.

show abstract

“…For instance, while each degree increase in ambient temperature between 24 and 30 °C would induce a feed intake decrease of 50 g d −1 in pigs of 60 kg BW, the corresponding decrease would average 80 g d −1 in pigs of 90 kg BW. The principle of the reduction in feed intake as a response to reduce heat production (or reduce the thermic effect of feeding) has been consistently confirmed through calorimetry studies performed in respiration chambers either in pigs of 20-30 kg (Collin et al, 2001) or pigs of 50-60 kg BW (Renaudeau et al, 2013).…”

Section: Voluntary Feed Intake and Growth Performancementioning

confidence: 91%

Physiological responses of growing pigs to high ambient temperature and/or inflammatory challenges

et al. 2017

Self Cite

View full text Add to dashboard Cite

-Global warming is one of the major environmental threats facing the world in the 21st century. This fact will have a significant impact on pig production due to its direct effects on welfare, health, and performance of pigs. Besides, the effects of high temperatures will presumably become more important over the next decades due to the development of pig production in developing countries mainly located in tropical and subtropical areas, where animals are often exposed to ambient temperatures above their thermal comfort zone. Furthermore, pigs reared in tropical areas are often confronted to sanitary challenges including poor hygiene conditions, lack of respect for sanitary rules, and pathogens. This results in the stimulation of the immune system and, as a consequence, in the production of pro-inflammatory cytokines and neuroendocrine adjustments that, in turn, usually have a negative impact on growth and feed efficiency. Although the effects of high ambient temperature and disease on pig physiology and performance have been well documented in literature, little is known about the associated effects of both factors. This understanding may contribute to a better quantification and comprehension of the physiological and metabolic disturbances occurring in practical conditions of pig production in tropical areas and, more generally, in many other geographic areas that will be influenced by the perspective of global warming. Therefore, the objective of this work is to provide an overview of recent research advances on the physiological responses of growing pigs during acclimation to high ambient temperature and on the potential effects of high ambient temperature on the ability of growing pigs to resist, cope with, or recover from an inflammatory challenge.

show abstract

Effect of high temperature on feeding behaviour and heat production in group-housed young pigs

Cited by 147 publications

References 25 publications

Effect of heat stress and feeding phosphorus levels on pig electron transport chain gene expression

Effect of heat stress and feeding phosphorus levels on pig electron transport chain gene expression

Effect of temperature level on thermal acclimation in Large White growing pigs

Physiological responses of growing pigs to high ambient temperature and/or inflammatory challenges

Contact Info

Product

Resources

About