Influence of protected organic acid blends and diets with different nutrient densities on growth performance, nutrient digestibility and faecal noxious gas emission in growing pigs

Abstract

ABSTRACT:This study was conducted to evaluate the effects of dietary supplementation of protected organic acid blends including medium chain fatty acids and different nutrient density diets on growth performance, nutrient digestibility and faecal noxious gas content in growing pigs. A total of 80 crossed [(Landrace × Yorkshire) × Duroc] growing pigs with an initial body weight (BW) of 22.61 ± 2.32 kg were used in a six-week trial. Pigs were randomly allocated into one of four treatment groups in a 2 × 2 factorial arrangement with two levels of nutrient density (high and low) and protected organic acid (0% and 0.1%) according to their sex and BW (five replicates with two gilts and two barrows per pen). Pigs fed high nutrient density diets had increased (P < 0.05) average daily gain (ADG0 and gain: feed (G : F) than those fed low nutrient density diets. Likewise, pigs fed protected organic acid diets exhibited increased (P < 0.05) ADG compared with pigs fed no additional protected organic acids. An interactive effect (P = 0.03) between organic acid and nutrient density was observed on feed conversion by pigs. Dry matter (DM) digestibility tended to improve (P = 0.08) in pigs fed high nutrient density diets compared with low nutrient density diets. However, nitrogen (N) and energy (E) digestibility was not influenced by the nutrient density. Likewise, protected organic acid supplementation did not influence (P > 0.05) DM, N or E digestibility. Organic acid supplementation reduced (P < 0.05) H 2 S content from faeces on Day 1, Day 3, Day 5 and Day 7 of incubation. Low nutrient density diets led to a reduction (P < 0.05) in H 2 S gas content on Day 1 of incubation. No interactive effect on faecal noxious gas content was observed between nutrient density and organic acid. In conclusion, dietary supplementation of protected organic acids with a high nutrient diet improved growth performance and reduced H 2 S acid emission.Keywords: digestibility; growing pig; growth performance; microflora; protected organic acid List of abbreviations ADG = average daily gain, ADFI = average daily feed intake, BW = body weight, DM = dry matter, E = energy, G : F = feed efficiency, H 2 S = hydrogen sulphide, MCFA = medium chain fatty acid, N = nitrogen

Evaluation of the effectiveness of supplementing micro-encapsulated organic acids and essential oils in diets for sows and suckling piglets

“…Our results are in agreement with previous experiments that showed feeding a diet supplemented with protected OA blends, improved ADG, feed efficiency and did not affect ADFI (Upadhaya et al 2014(Upadhaya et al , 2015b. It has been reported that the addition of single or blends of OA may have a negative effect on the palatability of the diet, thus decreasing ADFI (Walsh et al 2007).…”

“…Previous studies indicate microencapsulation would increase the effects of OA and EO (Burnell et al 1988;Cho et al 2014;Zhang et al 2014;Mohammadi Gheisar et al 2015;Upadhaya et al 2015a,b;Mohana Devi et al 2016). The effects of micro-encapsulated organic acids and essential oils (MOE) in pigs and poultry have been variable because of different study conditions and differences in the type of MOE used as well as variation in the dose provided (Zhang et al 2005;Upadhaya et al 2014;Mohammadi Gheisar et al 2015;Lee et al 2015).…”

Microencapsulated organic acid blend with MCFAs can be used as analternative to antibiotics for laying hens

“…In our previous reports, the dietary supplementation of a microencapsulated organic acid blend with inorganic acids such as MCFAs or essential oil had positive effects on the growth performance and nutrient digestibility in growing (13) and finishing pigs (14,15), but not yet in layer hens. Thus, the objective of the present study was to evaluate the effects of a microencapsulated organic acid blend with MCFAs on egg production, weight, quality, fecal microflora, and nutrient digestibility in laying hens.…”

Dietary bacteriophages as an alternative for zinc oxide or organic acids to control diarrhoea and improve the performance of weanling piglets

“…OA have previously been used in weanling pigs and are known to improve nutrient digestibility and growth performance (Upadhaya et al 2014), and to modify the intestinal microflora . It has been reported that OA added to the diets of young chicks altered the microbial population of the small intestine (Cengiz et al 2012).…”