Nutrient digestibility and nitrogen balance in different pig breeds fed raw, sprouted, or roasted (Vigna unguiculata) diets

Author:

Lubisi M. W.,Baloyi J. J.,Fushai F.ORCID

Abstract

AbstractThe study examined effects of feeding iso-nutrient (150 g CP, 17.3 MJ ME kg−1) raw (RCP), sprouted (SPC), or roasted (RSCP) cowpea diets to Windsnyer (W), Large White (LW) × Landrace (LR), and the 3-way crossbred (W × LW × LR) growing pigs. Diet dry matter (DM) digestibility was estimated using standard, 3-step (gastric, small intestines, colon) in vitro digestion. Dietary in vivo nutrient digestibility and nitrogen balance were evaluated using 3 weaned pigs of each genotype. Pigs were housed in individual metabolic cages. The diets were assigned to pigs in a 3 × 3 change-over factorial experiment within three balanced, 3 × 3 Latin squares. Feeding periods consisted of 7 days adaption + 5 days’ measurement of feed intake, and the total faecal and urine excretions. The SPC diet increased step 3 in vitro DM digestibility compared to RSCP (P < 0.05). Metabolic size-scaled feed consumption was higher on the RCP compared to the RSCP diet (P < 0.05). Cowpea processing reduced apparent DM and ash digestibility (P < 0.05). LW × LR pigs exhibited lower digestibility of ash and acid detergent fiber (ADF) compared to 3-way crossbred pigs (P < 0.05). Significant genotype-diet interactions were observed for nitrogen intake (P < 0.0001), digestible nitrogen (P = 0.043), urinary nitrogen output (P < 0.0001), faecal nitrogen output (P < 0.0001), total nitrogen excretion (P < 0.0001), and nitrogen retention (P < 0.001). The biological value of feed protein was higher for W pigs than 3-way crossbred pigs (P < 0.05). Genotype-diet interactions suggested unique digestive and, or metabolic adaptive traits in the utilization of the differently processed cowpeas, which need further investigation.

Funder

National Research Foundation

University of Venda

Publisher

Springer Science and Business Media LLC

Subject

Animal Science and Zoology,Food Animals

Reference51 articles.

1. Adino, S., Wondifraw, Z. and Addis, M., 2018. Replacement of Soybean Grain with Cowpea Grain (Vigna unguiculata) as Protein Supplement in Sasso x Rir Crossbred Chicks Diet. Poultry Fish Wildlife Science 6: 188. https://doi.org/10.4172/2375-446X.1000188

2. Ameen, O.M., Fatope, O.M., Usman, L.A. and Adebayo, S.A., 2005. Bioactive metabolites in improved cowpea seeds. African Journal of Biotechnology, 4: 513-516.

3. AOAC., 2000. Official Methods of Analysis, Arlington, VA, USA.

4. AOAC., 2005. Official Methods of Analysis. 18th ed. Arlington, VA, USA.

5. Aquilani, C., Sirtori, F., Franci, O., Acciaioli, A., Bozzi, R., Benvenuti, D., Candek-Potokar., M. and Pugliese., C., 2019. Effects of different protein levels on the nitrogen balance, performance and slaughtering traits of Cinta senese growing Pigs. Tropical Animal Health and Production, 53: 364.

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