Tropical Animal Health and Production

, Volume 50, Issue 1, pp 113–120 | Cite as

Voluntary feed intake and growth performance of slow-growing pigs fed on increasing levels of ensiled potato hash meal

  • C. N Ncobela
  • A. T Kanengoni
  • R. S Thomas
  • M. ChimonyoEmail author
Regular Articles


The objective of the study was to determine voluntary feed intake and growth performance of Windsnyer pigs fed on increasing levels of potato hash silage meal. Thirty-six growing Windsnyer pigs (19 kg ± 5.59) (mean ± standard deviation (SD)) were individually and randomly assigned to six experimental diets containing 0, 80, 160, 240, 320 and 400 g/kg DM of potato hash silage. Diets containing the potato hash silage were formulated using diet dilution method from 0 g/kg and 400 g/kg. Six pigs were fed on each diet ad libitum for 6 weeks. Average daily feed intake (ADFI), average daily gain (ADG), gain to feed (G/F) ratio, scaled feed intake (SFI) and scaled average daily gain (SADG) were measured weekly. Increasing levels of potato hash silage caused a decrease (P < 0.05) in ADG, G/F ratio and SADG. The ADFI interacted significantly (P < 0.05) with the inclusion level of potato hash silage and week of feeding. Pigs fed on 240 g/kg potato hash silage had greater ADFI in the second, third and fourth week of feeding. There was a quadratic increase (P < 0.05) in ADFI. There was a linear decrease (P < 0.05) in ADG and G/F ratio and SADG as the potato hash silage level increased. Using piecewise regression, potato hash silage can be included up to 240 g/kg DM in Windsnyer pigs without undermining growth performance.


Diet dilution Feed intake Pig performance Potato hash silage Windsnyer pigs 



The authors wish to recognise the Agricultural Research Council, Professional Development Project, National Research Foundation, Scarce Skills Development Fund and Gauteng Department of Agriculture and Rural Development for funding the project.

Compliance with ethical standards

The use and care of the experimental animals were ethically proved (reference number: APIEC16/015) by the Agricultural Research Council, Animal Production Institute Ethics committee.

Conflict of interest

There was no existing conflict of interest among authors and funders of the project.


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Copyright information

© Springer Science+Business Media B.V. 2017

Authors and Affiliations

  • C. N Ncobela
    • 1
    • 2
  • A. T Kanengoni
    • 3
    • 4
  • R. S Thomas
    • 2
  • M. Chimonyo
    • 1
    Email author
  1. 1.Animal and Poultry Science, School of Agricultural, Earth and Environmental SciencesUniversity of KwaZulu-NatalPietermaritzburgSouth Africa
  2. 2.Agricultural Research Council-Animal Production Institute (Nutrition Building)IreneSouth Africa
  3. 3.Veterinary Services and Research DepartmentJoburg ZooJohannesburgSouth Africa
  4. 4.College of Agriculture and Environmental SciencesUniversity of South AfricaFloridaSouth Africa

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