Gestating sows prefer concentrate diets to high-fibre diet in two-choice tests

Guillemet, Rozenn; Comyn, Sébastien; Dourmad, Jean-Yves; Meunier-Salaün, Marie-Christine

doi:10.1016/j.applanim.2006.12.007

Cited by 10 publications

(7 citation statements)

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“…Two methodologies exist in the feed choice tests: a one-way test in which various diets are alternatively presented, and the 'multiple-way choice test' in which two or more diets are presented simultaneously in a free-choice situation (e.g. Schö ne et al, 2006;Guillemet et al, 2007;Sola-Oriol et al, 2009). In the free-choice situation, the result does not predict the behaviour in a practical situation in which a unique food is usually supplied, whereas the oneway test allows the analysis of feeding preference, but at the same time limits the influence of alternate food resources Figure 4 Examples of the experimental cages and operating devices used to investigate the feeding behaviour and motivation in pigs.…”

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confidence: 99%

“…Providing a high-fibre diet during gestation may also be beneficial for lactating sows because it prepared the sows for an ad libitum food supply after farrowing and increased food consumption, especially in primiparous young sows and during the first week of lactation (Guillemet et al, 2006). However, when subjected to two-way choice tests, gestating sows preferred standard gestation and lactation diets to a high-fibre diet, consistent with its lower palatability (Guillemet et al, 2007 and. These results showed the positive impact of a fibrous diet in improving animal welfare during pregnancy when the diet was supplied without any alternative choice, and also highlighted the necessity to ameliorate its organoleptic properties, so as to prevent its avoidance under circumstances of multiple food choices.…”

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Food preferences and aversions in human health and nutrition: how can pigs help the biomedical research?

Clouard

Meunier-Salaün

Val‐Laillet

2012

Animal

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The establishment of food preferences and aversions determines the modulation of eating behaviour and the optimization of food intake. These phenomena rely on the learning and memory abilities of the organism and depend on different psychobiological mechanisms such as associative conditionings and sociocultural influences. After summarizing the various behavioural and environmental determinants of the establishment of food preferences and aversions, this paper describes several issues encountered in human nutrition when preferences and aversions become detrimental to health: development of eating disorders and obesity, aversions and anorexia in chemotherapy-treated or elderly patients and poor palatability of medical substances and drugs. Most of the relevant biomedical research has been performed in rodent models, although this approach has severe limitations, especially in the nutritional field. Consequently, the final aim of this paper is to discuss the use of the pig model to investigate the behavioural and neurophysiological mechanisms underlying the establishment of food preferences and aversions by reviewing the literature supporting analogies at multiple levels (general physiology and anatomy, sensory sensitivity, digestive function, cognitive abilities, brain features) between pigs and humans.Keywords: pig, conditioned learning, eating behaviour, animal model, biomedical applications ImplicationsInvestigation of the behavioural and neurophysiological mechanisms of the establishment of food preferences and aversions can lead to important developments in the context of human nutrition and health. Because the rodent models are not always adequate in this field, there is a need to develop alternative experimental models. Pigs have numerous similarities with humans in terms of the physiology, anatomy, sensory sensitivity, cognitive abilities and brain functions. The aim of this paper is to promote the use of pigs for biomedical research in human nutrition. IntroductionFeeding is a complex behaviour, which can be described as 'the research and consumption of food and drink to maintain vital functions ' (Bellisle, 1999) and to 'fulfil the metabolic needs of the organism ' (Ferreira, 2004). Today, it is also well acknowledged that a high proportion of human food consumption in developed countries appears to be driven by pleasure (for a review, see Lowe and Butryn, 2007) and sociocultural influences. Food consumption is also involved in fundamental metabolic homeostasis regulation, as it controls the supply of energy and nutrients in the organism (Bellisle, 1999). According to Ferreira (2004), feeding behaviour implies that animals learn to consume high-energy foods and to avoid toxic foods. Establishment of food selection implies that, during its first experience with food, the organism memorizes the sensorial characteristics of the food (e.g. taste, odour, texture and visual cues) and the postingestive consequences of its ingestion, and associates these food characteristics with these consequences (Garcia et ...

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confidence: 99%

Food preferences and aversions in human health and nutrition: how can pigs help the biomedical research?

Clouard

Meunier-Salaün

Val‐Laillet

2012

Animal

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“…It may be that hens preferred the CON feed because it was denser in nutrients (Table 1). In an analogous experiment with gestating sows, Guillemet et al (2007) found an aversion toward feed supplemented with dietary fiber, despite its reported positive effects on stereotypies associated with feed restriction.…”

Section: Dietary Fiber Intakementioning

confidence: 88%

The preference for high-fiber feed in laying hens divergently selected on feather pecking

Kalmendal

Bessei

2012

Poultry Science

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Earlier studies in laying hens have demonstrated a negative correlation between feather pecking and the dietary fiber content of the feed. However, the factors underlying this relationship are not fully understood. In the present experiment, we hypothesized that birds prone to feather pecking would prefer a diet supplemented with dietary fiber. Thus, the aim was to investigate the voluntary consumption of a wheat-soy control diet (CON) and a diet supplemented with 8% spelt hulls (FIB) on the expense of wheat in 20 individually caged hens selected for high feather pecking (HFP) behavior and 20 individually caged hens selected for low feather pecking (LFP) behavior. The proportional intake of FIB was 0.39 and significantly different from 0.50 (P<0.001). As hypothesized, HFP had higher proportional intake of FIB (0.43) than LFP hens (0.36; P<0.05). The HFP hens had inferior plumage condition (P<0.001), higher BW (P<0.001), and higher feed intake (P<0.01) than LFP. The HFP hens plucked more feathers from a simple inanimate feather-pecking model, but the number of feathers being pulled out did not correlate with the proportional intake of FIB. It was concluded that the preference for feed supplemented with spelt hulls was different between hens displaying different feather-pecking behavior. The underlying reason for such a difference needs further investigation.

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“…However, these results may also be linked to feed preferences. In a previous (CON; panel A) or high-fiber (HF; panel B) diet in gestation and offered the choice between the gestation diet and the lactation diet from 12 d before to 14 d after farrowing during the 4 wk of the experiment (A1 and B1: d −12 to −8; A2 and B2: d −7 to 0; A3 and B3: d 1 to 7; A4 and B4: d 8 to 14); sows were fed restrictively and allowed to eat beginning at 0900 h. study conducted on feed preferences of sows subjected to 2 choice tests and given the choice between the same 3 experimental diets as used in the present study (Guillemet et al, 2007a), sows did not show any strong avoidance of a high-fiber gestation diet, although they never preferred the fibrous diet when presented with the standard gestation diet or the lactation diet. In addition, sows did not show any clear preference between the standard gestation diet and the lactation diet when tested together.…”

Section: Discussionmentioning

confidence: 99%

Feed transition between gestation and lactation is exhibited earlier in sows fed a high-fiber diet during gestation1

Guillemet

Guérin

et al. 2010

Journal of Animal Science

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The underconsumption of feed frequently observed in young sows during lactation can result from an adaptation problem of the sow to the new feeding management in terms of diet composition and feeding amount. Our study aimed to investigate how the sow manages her own feed transition when given the choice between the gestation diet and the lactation diet from moving into the farrowing crate (12 d before farrowing) until the second week postpartum. The effect of adding dietary fiber to the gestation diet on this transition was also evaluated. During gestation, 16 primiparous sows (Large White x Landrace) were fed 2.4 kg/d of a control (CON) diet (3.5% of crude fiber), or 2.9 kg/d of a high-fiber (HF) diet (12.8% of crude fiber). The daily allowance of NE was 24 MJ in both treatments. Twelve days before the expected parturition day (d -12), sows were moved into farrowing crates that were equipped with a computerized feeding device allowing the gestation and lactation diets to be supplied via 2 rewarded push buttons placed above the trough, until d 14 postpartum. The feeding transition was evaluated through the daily ratio of ingestion of the lactation diet. Feeding behavior was measured through daily feed and energy intakes, number of daily meals, meal size, and the nycthemeral distribution of feeding activity. Sows were weighed and backfat thickness was measured at the beginning and end of gestation and lactation. Piglets were weighed every week from birth until weaning. The transition to the lactation diet occurred earlier in HF sows (P < 0.05); the 50% threshold of lactation diet ingestion was reached on d -8 and 12 in HF and CON sows, respectively. Dietary treatment did not affect the feeding pattern, and all sows presented a diurnal feeding activity. During lactation, there was an interaction (P < 0.05) between the hour of the day and the dietary treatment for the distribution of pushes on the rewarded buttons, with pushes being more spread out throughout the day in CON sows compared with HF sows. Variations in sow backfat thickness were not affected by dietary treatment, but HF sows lost more BW during lactation (P < 0.05). Growth of piglets was not affected by dietary treatment. In conclusion, sows chose the lactation diet spontaneously on the week preceding parturition when they were fed a fibrous diet during gestation. This highlights the possible impact of such a gestation diet to promote early intake of the lactation diet.

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Gestating sows prefer concentrate diets to high-fibre diet in two-choice tests

Cited by 10 publications

References 36 publications

Food preferences and aversions in human health and nutrition: how can pigs help the biomedical research?

Food preferences and aversions in human health and nutrition: how can pigs help the biomedical research?

The preference for high-fiber feed in laying hens divergently selected on feather pecking

Feed transition between gestation and lactation is exhibited earlier in sows fed a high-fiber diet during gestation1

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