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
Cherie L CollinsFrank R Dunshea

Abstract

The 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. Wea...Continue Reading

Citations

Jun 18, 2020·Animals : an Open Access Journal From MDPI·Jordi Camp MontoroJulia Adriana Calderón Díaz
Oct 24, 2018·Journal of Animal Science and Biotechnology·Shiyi TianWeiyun Zhu
Apr 13, 2018·Translational Animal Science·Jeremiah E NemechekJason C Woodworth
Dec 22, 2018·Translational Animal Science·Fangzhou WuRobert D Goodband
Nov 20, 2020·Journal of Animal Physiology and Animal Nutrition·Cátia Falcão MartinsJoão Pedro Bengala Freire
Nov 15, 2020·Journal of Animal Science·Jamil E G FaccinRobert D Goodband
Jul 22, 2021·Journal of Animal Physiology and Animal Nutrition·Jordi Camp MontoroEdgar Garcia Manzanilla

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