Acta Scientific Veterinary Sciences (ISSN: 2582-3183)

Research Article Volume 5 Issue 7

Nutrient Utilization in Local Mixed Genotype Growing Pigs Fed Wheat-Based Protein Concentrates Blended with Sweet Potato Roots Ensiled with or without Vines

MT Dom1,3, WK Ayalew1, PJ Kohun1, PC Glatz2,3, PE Hughes2,3 and RN Kirkwood3

1Livestock Projects, National Agricultural Research Institute, Papua New Guinea
2South Australia Research and Development Institute, Australia
3School of Animal and Veterinary Sciences, The University of Adelaide, Australia

*Corresponding Author: RN Kirkwood, School of Animal and Veterinary Sciences, The University of Adelaide, Australia.

Received: May 19, 2023; Published: June 21, 2023

Abstract

Background: Feeding sweet potato (Ipomoea batatas, L. (Lam)) roots and forage to pigs is characteristic of smallholder farming in tropical countries and particularly the use of indigenous breeds and their crossbred progeny (mixed genotype, MG) growing pigs. Presenting forage as ensiled, fermented feed, is a recent technology to smallholder pig feeding in the Pacific region, which until now was not tested for metabolic contribution to effective nutrition for MG pigs and towards reducing the feed costs of production.

Objectives: To determine the nutritional utilization of sweet potato for mixed genotype lacal pig breeds.

Methods: Two metabolic trials tested the total tract apparent digestibility (TTAD) of nutrients and N balance in MG growing pigs fed ensiled SP roots (ER) or roots and vines (ERV), blended with two protein concentrates at 380, 400, 430 and 500 g/kg DM into four treatment diets, ER380, ER430, ERV400 and ERV500, compared against a standard wheat-based commercial pellet diet (STD). The trials were conducted using a 4 × 4 Latin Square design with two sets of four MG pigs at 23 kg (Trial 1) and 27 kg (Trial 2) starting BW. The trial pigs were offered one of four diets interchanged during four 8 d periods, with a 5 d adaptation phase and 3 d for total collection of faeces and urine. Pigs were housed in all-steel metabolic cages (1.0 m × 1.0 m × 1.5 m) on stands 0.7 m above floor level.

Results: DMI was higher (2,290-2,739 g/d) for pigs on the SP-based diets (p < 0.05), ADG in Trial 1 was lower (686-718 g/d) but in Trial 2 was similar (944-1072 g/d) to pigs fed STD (p > 0.05), while the FCR (2.72-3.70) was higher than STD (p < 0.05) in both trials. DM, OM, CF, fats (EE), carbohydrates (NFE) and energy coefficients of TTAD were superior on the SP-based diets, but Ash, Ca and Total P CTTAD were reduced compared to STD (p < 0.05). N retained (g N/d) differed between the diets; 27.1 (ERV400), 20.8-24.8 (ER430), 27.7-29.0 (ERV500), 30.8-31.2 (STD); and did not reflect dietary CP or amino acid levels, dietary fibre content, or energy digestibility. However, N retention (NR% intake) and utilization (NR% digested) was inferior to STD for all SP-based diets except ER380 (Trial 2). Higher faecal N (g/d) (P < 0.05) suggested increased hind gut fermentation in pigs fed on SP-based diets, whereas higher urine N (g/d) (p < 0.05) indicated a lower N requirement.

Conclusion: Dietary fibre in SP vines reduced nutrient utilization for growth but MG pigs adapted over time. Reduced protein and amino acid supplementation were recommended for MG pigs.

Keywords: Blended Diets; Ensiled Sweet Potato; Growing Pigs; Nutrient Utilization

References

  1. Scott GJ., et al. “Roots and tubers for the 21st century: Trends, projections, and policy options”. Food, Agriculture, and the Environment Discussion Paper No. 31. (2000). International Food Policy Research Institute (IFPRI) and International Potato Center (CIP), Washington, D.C. USA (2000).
  2. Rodriguez L and Preston. “Local feed resources and indigenous breeds: fundamental issues in integrated farming systems”. Paper presented at the symposium-workshop Better Use of Locally Available Feed Resources in Sustainable Livestock-based Agriculture in SE Asia (FAO project GCP/RAS/143/JPN), 10 to14 September 1996, University of Agriculture and Forestry, Ho Chi Minh City, Vietnam.
  3. Giang HH., et al., “Evaluation of ensiling methods to preserve sweet potato roots and vines as pig feed”. Livestock Research for Rural Development 16 (2004a): 45.
  4. Giang HH., et al. “Digestibility of dried and ensiled sweet potato roots and vines and their effect on the performance and economic efficiency of F1 crossbred fattening pigs”. Livestock Research for Rural Development 16 (2004b): 50.
  5. Ngoc TTB., et al. “Impact of fibre intake and source on digestibility, gut development, retention time and growth performance of indigenous and exotic pigs”. Animal 7 (2013): 736-745.
  6. Missotten JAM., et al. “Fermented liquid feed for pigs: an ancient technique for the future”. Journal of Animal Science and Biotechnology 6 (2015): 4.
  7. Regnier C., et al. “Digestive utilization of tropical foliages of cassava, sweet potatoes, wild cocoyam and erythrina in Creole growing pigs”. Animal Feed Science and Technology 180 (2013): 44-54.
  8. An LV., et al. “Ileal and total tract digestibility in growing pigs fed cassava root meal diets with inclusion of fresh, dry and ensiled sweet potato (Ipomoea batatas (Lam.) leaves”. Animal Feed Science and Technology 114 (2004): 127-139.
  9. Lindberg JE. “Fiber effects in nutrition and gut health in pigs”. Journal of Animal Science and Biotechnology 5 (2014): 15.
  10. Hide R. “Pig Husbandry in New Guinea. A literature review and bibliography”. ACIAR Monograph Series No.108 (2003).
  11. Ayalew W., et al. “Genetic and cultural significance of native pigs in PNG and their phenotypic features”. Food and Agriculture Organization of the United Nations. Animal Genetic Resources 48 (2011): 37-46.
  12. Kanengoni AT., et al. “Influence of level of maize cob meal on nutrient digestibility and nitrogen balance in Large White, Mukota and LW × M F1 crossbred Pigs”. Animal Science 74 (2002): 127-134.
  13. Rose CJ and White GA. “Apparent digestibilities of DM, OM, CP, energy and ADF of chopped raw sweet potato (Ipomoea batatas) by village pigs”. Papua New Guinea Agricultural Journal 31 (1980): 69-72.
  14. Association of Official Analytical Chemists (AOAC). Official methods of analysis 19th AOAC International, Gaithersburg, Maryland, USA (2012).
  15. Noblet J and Perez JM. “Prediction of digestibility nutrients and energy values of pig diets from chemical analysis”. Journal of Animal Science 71 (1993): 3389-3398.
  16. Heuze V., et al. “Feedipedia: Sweet potato (Ipomoea batatas) tubers” (2015).
  17. Len NT., et al. ”Digestibility and nitrogen retention of diets containing different levels of fibre in local (Mong Cai), F1 (Mong Cai × Yorkshire) and exotic (Landrace × Yorkshire) growing pigs in Vietnam”. Journal of Animal Physiology and Animal Nutrition 91 (2007): 297-303.
  18. Moore KL., et al. “The response of entire male and female pigs from 20 to 100-kg live weight to dietary available lysine”. Animal Production Science 53 (2013): 52-56.
  19. Spencer PBS., et al. “An assessment of the genetic diversity and structure within and among populations of wild pigs (Sus scrofa) from Australia and Papua New Guinea”. Journal of Genetics 85 (2006): 63-66.
  20. Dom MT., et al. “Nutrient utilization in grower pigs fed boiled, ensiled or milled sweet potato roots blended with a wheat-based protein concentrate”. Animal Feed Science and Technology 223 (2017): 82-89.
  21. Len NT., et al. ”Comparison of total tract digestibility, development of visceral organs, and digetive tract of Mong Cai and YorkShire × Landrace piglets fed diets with different fibre sources”. Journal of Animal Physiology and Animal Nutrition 93 (2009): 181-
  22. Loc NT., et al. “Cassava root silage for crossbred pigs under village conditions in Central Vietnam”. Livestock Research for Rural Development 9 (1997): 2.
  23. Dom M and Ayalew W. “Effect of replacing 50% of a commercial grower feed with sweet potato silage on the performance of crossbred pigs in PNG”. Journal of South Pacific Agriculture 14 (2010): 78-86.
  24. Kyriazakis I. 2011. “Opportunities to improve nutrient efficiency in pigs and poultry through breeding”. Animal 5 (2011): 821-832.
  25. Dierick NA., et al. “Bacterial protein synthesis in relation to organic matter digestion in the hindgut of growing pigs; contribution of hindgut fermentation to total energy supply and growth performances”. Journal of Animal Physiology and Animal Nutrition 63 (1990): 220-235.
  26. Tetens I., et al. “Effects of the type and level of dietary fibre supplements on nitrogen retention and excretion patterns”. British Journal of Nutrition 75 (1996): 461-469.
  27. Bach Knudsen KE and Hansen I. “Gastrointestinal implications in pigs of wheat and oat fractions 1. Digestibility and bulking properties of polysaccharides and other major constituents”. British Journal of Nutrition 65 (1991): 217-232.
  28. Bindelle J., et al. “Nutritional and environmental consequences of dietary fibre in pig nutrition: a review”. Biotechnology Agronomy Society and Environment 12 (2008): 69-80.
  29. Dominguez PL., “Feeding of sweet potato in monogastrics”. In, Roots, Tubers, Plantains and Bananas in Animal Feeding (eds. D Machin and S Nyvold). Food and Agriculture Organization, Rome Italy (1992): 217-233.
  30. Le Gall M., et al. “Influence of dietary fibre level and pelleting on the digestibility of energy and nutrients in growing pigs and adult sows”. Animal 3 (2009): 352-359.
  31. Hansen JA., et al. “Influence of different fibre sources on digestibility and nitrogen and energy balances in growing pigs”. Archives of Animal Nutrition 60 (2006): 390-401.
  32. Schulze H., et al. “Dietary level and source of neutral detergent fibre and ileal endogenous nitrogen flow in pigs”. Journal of Animal Science 73 (1995): 441-448.
  33. Sauer WC., et al. “The effect of source of fibre on ileal and fecal amino acid digestibility and bacterial nitrogen excretion in growing pigs”. Journal of Animal Science 69 (1991): 4070-4077.
  34. Nyachoti CM., et al. “Significance of endogenous gut nitrogen losses in the nutrition of growing pigs: A review”. Canadian Journal of Animal Science 77 (1997): 149-163.
  35. Hodgkinson SM., et al. “The effect of dietary peptide concentration on endogenous ileal amino acid loss in the growing pig”. British Journal of Nutrition 83 (2000): 421-430.
  36. Le Bellego L., et al. “Effect of high temperature and low-protein diets on the performance of growing-finishing pigs”. Journal of Animal Science 80 (2002): 691-701.
  37. Kerr BJ., et al. “Influence of dietary protein level, amino acid supplementation, and dietary energy levels on growing-finishing pig performance and carcass composition”. Journal of Animal Science 81 (2003): 3075-3087.

Citation

Citation: MT Dom., et al. “Nutrient Utilization in Local Mixed Genotype Growing Pigs Fed Wheat-Based Protein Concentrates Blended with Sweet Potato Roots Ensiled with or without Vines".Acta Scientific Veterinary Sciences 5.7 (2023): 86-95.

Copyright

Copyright: © 2023 MT Dom., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




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