The effect of food restriction on subsequent voluntary intake of pigs

Owen, J. B.; Ridgman, W. J.; Wyllie, D.

doi:10.1017/s0003356100010734

Cited by 21 publications

(16 citation statements)

References 5 publications

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“…On being given free access to the food in the second period, the R pigs could be expected to increase their rate of food intake from 300 g/day in order to attain their potential growth rate and to attempt to eliminate their lipid deficit (Cole et ah, 1968;Owen et , 1971;Ratcliffe and Fowler, 1980). To be able to process the greatly increased intake they would need to grow their food-processing organs rapidly which, in turn, would further increase the demand for food.…”

Section: Discussionmentioning

confidence: 99%

The performance and body composition of young pigs following a period of growth retardation by food restriction

1991

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Pigs were fed either ad libitum or given 300 g/day of the same food (digestible energy 15-4M]/kg; crude protein 208 g/kg fresh food) from 6 to 12 kg live weight (LW). Four pigs were killed at 6 kg LWand eight (equal numbers from the two sexes) from each treatment at 12 kg LW. Eight pigs (three males and five females; AL) were continued on ad libitum feeding to 24 kg LW when they were killed. Ten (four males and six females; R) of the pigs which had been restricted to 12 kg LW, were fed ad libitum to 24 kg LW, when they were killed. The entire empty bodies of the pigs killed were chemically analysed and the weights of organs determined. The empty body was considered as three fractions: the entire skin, including the subcutaneous fat (SK); the internal organs and the empty gastrointestinal tract (INT) and the remainder (CARC). The distributions of the chemical components between these three fractions were determined. The R pigs took 19 days longer and 2-6 kg more food to go from 6 to 12 kg LW. At 12 kg LWthey had less gut fill, lighter organs concerned with food processing and less lipid, more protein and heavier CARC weights than the AL pigs. The R pigs took 5-5 days less and 2-4 kg less food to go from 12 to 24 kg than the AL pigs. At 24 kg LW they had more gut fill, similar weights of the organs concerned with food processing, and slightly less lipid and protein. Over the 12 to 24 kg weight interval the R pigs gained lipid and protein at faster rates than the AL pigs. None of the increase in protein growth rate was in the CARC fraction.It is concluded that pigs given a low intake of food adjust their organ weights to be sufficient to process the allowance. On being given ad libitum food they rapidly increase the weights of their organs to process the increased rate of intake, and increase their gut fill. These effects are seen as a short lived, greatly increased rate of LW gain. During rehabilitation lipid stores return to their normal level but carcass protein does not show an increased rate of growth.

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Section: Discussionmentioning

confidence: 99%

The performance and body composition of young pigs following a period of growth retardation by food restriction

1991

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“…Similar findings have been reported by Sobinson (1964) and Owen, Ridgman and Wyllie (1971) when larger pigs were restricted-fed. Topel (1971) and Young and Sharma (1973) attempted to evaluate the effect of early energy restriction per se on subsequent performance and concluded that energy intake from birth to 23 kg live weight has no effect on body composition of market pigs.…”

Section: Nutrition and Compensatory Growth In Pigssupporting

confidence: 91%

Effect of starter nutrition on compensatory growth and development of swine

Khajarern

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“…During the following period of realimentation this difference decreased to 5% but, compared with pigs continuously fed the HF diet, it was 3% lower. Comparison of the voluntary feed intake of compensating pigs in our study with that of pigs previously restricted with protein or feed/energy intake, it is clear that they responded rather similarly to the latter (Owen et al, 1971;Bikker, 1994;Skiba et al, 2001), as animals on which compensatory growth was induced by previous protein restriction do not consume more feed (de Greef, 1992;Skiba et al, 2001).…”

Section: Discussionmentioning

confidence: 69%

The compensatory response of pigs previously fed a diet with an increased fibre content. 1. Growth rate and voluntary feed intake

Skiba¹,

Raj²,

Weremko³

et al. 2006

J. Anim. Feed Sci.

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The compensatory response of pigs induced by previously feeding a fibre-rich diet was investigated on 54 gilts from 25 to 105 kg body weight (BW). The experiment consisted of two growth periods: a restriction period imposed by feeding the pigs a HF diet (high-fibre) up to 50 (group HF50) or 80 kg BW (group HF80), followed by a realimentation period with diet LF (lowfibre). Pigs of the control groups were continuously fed either diet LF (group LF105) or diet HF (group HF105). During restriction, the HF50 and HF80 animals consumed on average the same amount of feed as the LF animals. In spite of this, their average daily body gain was respectively 111 and 87 g lower than in the LF animals. During the first stage of realimentation (50 to 80 kg BW) group HF50 animals consumed a greater (P<0.01) amount of feed daily (2.80 kg) than animals of the remaining groups (2.56 kg, group LF105; 2.69 kg, group HF80; and 2.68 kg, group HF105). Consequently, the HF50 pigs had the greatest (P<0.01) daily gain, whereas pigs of groups LF105, HF80 and HF105 grew more slowly (1021 vs 965, 920 and 923 g/day, respectively). During this period, the pigs of groups HF50 and LF105 utilized feed slightly better than those from groups HF80 and HF105. During subsequent realimentation (80-105 kg BW), the performance of pigs did not differ significantly among groups. Our results confirm that the compensatory response lasts a few weeks after changing restriction to realimentation and is more intensive in young than in old pigs. In the case of our study, compensatory growth resulted mainly from a higher voluntary feed intake.

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The effect of food restriction on subsequent voluntary intake of pigs

Cited by 21 publications

References 5 publications

The performance and body composition of young pigs following a period of growth retardation by food restriction

The performance and body composition of young pigs following a period of growth retardation by food restriction

Effect of starter nutrition on compensatory growth and development of swine

The compensatory response of pigs previously fed a diet with an increased fibre content. 1. Growth rate and voluntary feed intake

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