Available energy content, nutrients digestibility of chili meal and effects on performance of growing pigs

Y.F Fan,Y.Y Yang,P Yang,T Xia,Y.X Ma

doi:10.1016/j.anifeedsci.2017.05.001

Abstract

The objective of this study was to evaluate the digestible energy (DE), metabolizable energy (ME) content, apparent total tract digestibility (ATTD) of nutrients in chili meal (CM), and to determine the effects of CM on the performance of growing pigs. In Exp. 1, 12 barrows (Duroc x Landrace x Yorkshire) with an initial body weight (BW) of 50.9±1.8kg were allocated to one of two treatments, corn-soybean meal basal diet or diet containing 194.2g/kg CM, which replaced corn and soybean meal in the basal diet. Pigs were placed in metabolism crates for a 7-d adaptation period followed by a 5-d total collection of feces and urine to detect DE, ME and ATTD of nutrients in CM. Exp. 2 was conducted for 4 wk. to evaluate the effect of CM on performance of growing pigs. 150 growing pigs (58.4±1.2kg BW) were allocated to 1 of 5 treatments. Treatment 1 was a corn-soybean meal basal diet met the DE requirement for growing pigs recommended by NRC (2012). Treatment 2 or 3 were diets containing 50g/kg or 100g/kg CM respectively. Treatment: 4 or 5 were based on treatment 2 or 3, while soybean oil (SBO) was added to improve the DE content to that in treatment 1. In Exp. 1, the DE and ME content of CM were 9.08 and 8.48MJ/kg. The ATTD of dry matter (DM), gross energy (GE), organic matter (OM) and neutral detergent fiber (NDF) were 0.60, 0.54, 0.66 and 0.38, respectively. In Exp. 2, addition of CM linearly decreased (P<0.05) average daily gain (ADG) and the ATTD of DM, GE and OM while ATTD of crude protein (CP) had a quadratic (P<0.05) change. When SBO was supplemented in diets containing CM, greater values (P<0.05) of ATTD of most nutrients were observed. With the dietary inclusion of CM, the albumin/globulin ratio in serum had a quadratic change (P<0.05), and the level of low-density cholesterol linearly (P<0.05) increased. In treatments with 50g/kg CM, a significant reduction (P<0.05) of total antioxidant capacity was found in diet formulated with SBO. In treatments with 100g/kg CM, the level of total cholesterol was lower (P<0.05) in the diet with SBO. In conclusion, CM had moderate energy density and nutrients digestibility in pig diets. 50g/kg CM with SBO in diets could be fed to growing pigs with no significant negative effects.

Highlights

Chili, the capsicum fruit, is a kind of popular vegetables
Chili meal (CM) in present experiment was purchased from Chenguang Biotech Group Co., Ltd (Handan, China) and the processing flow was as follows: fresh chili was air dried, ground, and the husk of the chili was pelleted after seed-and-husk separation
There was no significant difference in the gross energy (GE) intake between the basal diet and CM diet (Table 4)

Summary

Introduction

The capsicum fruit, is a kind of popular vegetables. It can be eaten freshly or processed to chili powder and chili jam etc. Chili meal (CM), as the by-product of capsicum oleoresin extraction, is a potential source of feed material for abundant nutrients and increasing output

Objectives

Methods

Results

Conclusion