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dc.contributor.authorCollins, CL
dc.contributor.authorPluske, JR
dc.contributor.authorMorrison, RS
dc.contributor.authorMcDonald, TN
dc.contributor.authorSmits, RJ
dc.contributor.authorHenman, DJ
dc.contributor.authorStensland, I
dc.contributor.authorDunshea, FR
dc.date.accessioned2020-12-18T02:57:14Z
dc.date.available2020-12-18T02:57:14Z
dc.date.issued2017-12-01
dc.identifierpii: S2405-6545(16)30157-3
dc.identifier.citationCollins, C. L., Pluske, J. R., Morrison, R. S., McDonald, T. N., Smits, R. J., Henman, D. J., Stensland, I. & Dunshea, F. R. (2017). Post-weaning and whole-of-life performance of pigs is determined by live weight at weaning and the complexity of the diet fed after weaning. ANIMAL NUTRITION, 3 (4), pp.372-379. https://doi.org/10.1016/j.aninu.2017.01.001.
dc.identifier.issn2405-6383
dc.identifier.urihttp://hdl.handle.net/11343/255570
dc.description.abstractThe production performance and financial outcomes associated with weaner diet complexity for pigs of different weight classes at weaning were examined in this experiment. A total of 720 weaner pigs (360 entire males and 360 females) were selected at weaning (27 ± 3 d) and allocated to pens of 10 based on individual weaning weight (light weaning weight: pigs below 6.5 kg; medium weaning weight: 6.5 to 8 kg; heavy weaning weight: above 8.5 kg). Pens were then allocated in a 3 × 2 × 2 factorial arrangement of treatments with the respective factors being weaning weight (heavy, medium and light; H, M and L, respectively), weaner diet complexity (high complexity/cost, HC; low complexity/cost, LC), and gender (male and female). Common diets were fed to both treatment groups during the final 4 weeks of the weaner period (a period of 39 days). In the first 6 d after weaning, pigs offered the HC diets gained weight faster and used feed more efficiently than those offered the LC diets (P = 0.031). Pigs fed a HC diet after weaning tended to be heavier at the sale live weight of 123 d of age compared with pigs fed the LC diet (P = 0.056). There were no other main effects of the feeding program on growth performance through to slaughter. Weaning weight had a profound influence on lifetime growth performance and weight at 123 d of age, with H pigs at weaning increasing their weight advantage over the M and L pigs (101.3, 97.1, 89.6 kg respectively, P < 0.001). Cost-benefit analyses suggested there was a minimal benefit in terms of cost per unit live weight gain over lifetime when pigs were offered a HC feeding program to L, with a lower feed cost/kg gain. The results from this investigation confirm the impact of weaning weight on lifetime growth performance, and suggest that a HC feeding program should be focused on L weaner pigs (i.e., weaning weight less than 6.5 kg at 27 d of age) in order to maximise financial returns.
dc.languageEnglish
dc.publisherKEAI PUBLISHING LTD
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0
dc.titlePost-weaning and whole-of-life performance of pigs is determined by live weight at weaning and the complexity of the diet fed after weaning
dc.typeJournal Article
dc.identifier.doi10.1016/j.aninu.2017.01.001
melbourne.affiliation.departmentAgriculture and Food Systems
melbourne.source.titleAnimal Nutrition
melbourne.source.volume3
melbourne.source.issue4
melbourne.source.pages372-379
dc.rights.licenseCC BY-NC-ND
melbourne.elementsid1287014
melbourne.contributor.authorDunshea, Frank
dc.identifier.eissn2405-6545
melbourne.accessrightsOpen Access


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