2014
DOI: 10.1590/1678-41626379
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Abstract: The aim of the study was to evaluate the behaviour, pre-weaning survival rate and growth performance of low birth weight (BW) piglets cross-fostered with piglets of higher weights. Piglets were transferred to 60 foster sows, and divided in three groups (G; n=20): G1-12 low BW piglets (0.80-1.25kg); G2-six low BW piglets and six intermediate BW piglets (1.40-1.60kg), and G3-six low BW piglets and six high BW piglets (>1.70kg). For the analysis, groups G2 and G3 were subdivided in LG2 (six G2 light piglets); IG2… Show more

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Cited by 6 publications
(5 citation statements)
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“…Piglet size was an important factor for growth and survival [ 1 ]. Souza et al [ 15 ] found that LBW fostered piglets missed more nursing episodes when they were mixed with high BW fostered piglets, and HBW piglets vigorously stimulate the udder and suck more milk [ 32 , 33 ]; this may lead to a lower growth performance of LBW piglets than HBW piglets [ 14 , 34 ]. In the present study, we also found that the WW and ADG of LBW piglets (including C-F and NC-F piglets) were lower than HBW piglets.…”
Section: Discussionmentioning
confidence: 99%
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“…Piglet size was an important factor for growth and survival [ 1 ]. Souza et al [ 15 ] found that LBW fostered piglets missed more nursing episodes when they were mixed with high BW fostered piglets, and HBW piglets vigorously stimulate the udder and suck more milk [ 32 , 33 ]; this may lead to a lower growth performance of LBW piglets than HBW piglets [ 14 , 34 ]. In the present study, we also found that the WW and ADG of LBW piglets (including C-F and NC-F piglets) were lower than HBW piglets.…”
Section: Discussionmentioning
confidence: 99%
“…Large piglets that were fostered in mixed litters consisting of equal numbers of light-weight and heavy-weight piglets had a greater growth rate than large piglets, but the growth performance of small fostered piglets in uniform litters was significantly increased [ 14 ]. However, Souza et al [ 15 ] reported that small piglets had a similar body weight during lactation, regardless of being mixed with piglets of higher weights or not. Similar-sized piglets may face more competition [ 16 ], and homogeneous litters with only small piglets may not fully stimulate the breast, resulting in reduced milk production.…”
Section: Introductionmentioning
confidence: 99%
“…When low birth weight piglets have high or average birth weight litter mates they generally miss more nursing episodes as they are outcompeted [ 33 ]. Similarly, Souza et al [ 78 ] demonstrated that small piglets when grouped with large littermates missed more nursings in early lactation than when they were grouped with small littermates, but this did not translate to any differences in growth. This study did show that survival of small piglets was 100% when they were grouped with other small piglets, but was reduced to 83% when they were mixed with large littermates.…”
Section: Piglet Fosteringmentioning
confidence: 99%
“…Firstly small piglets may not provide enough pressure to stimulate milk letdown events. Souza et al [ 78 ] did indeed show that litters comprising completely of small fostered piglets tended to display reduced nutritive nursings on days three and five of lactation than those comprised of half large and half small piglets. This is most likely attributed to the fact that small piglets have reduced energy requirements.…”
Section: Piglet Fosteringmentioning
confidence: 99%
“…Moreover, it has been shown that the maturation of digestive function was delayed in LBW pigs, regardless of the stress associated with weaning transition [ 6 ]. In addition to their small size, LBW piglets may have reduced access to nutrition in the pre-weaning period due to competition with larger littermates [ 7 , 8 ], potentially exacerbating the negative effects of LBW on intestinal function, as sufficient nutrient intake is critical for intestinal development [ 9 ]. Inadequate intestinal development will lead to short- and long-term complications, including poor nutrient digestion and absorption, reduced intestinal barrier function, and increased susceptibility to pathogens [ 10 , 11 ], as well as reduced overall animal performance (i.e., growth).…”
Section: Introductionmentioning
confidence: 99%