Effect of Montmorillonite Superfine Composite on Growth Performance and Tissue Lead Level in Pigs

Abstract

A feeding trial was conducted to study the effect of montmorillonite superfine composite (MSC) on growth performance and tissue lead levels in pigs. Sixty barrows were randomly divided into two groups. They were fed the same basal diet supplemented with 0 or 0.5% MSC, respectively, for 100 days. Serum samples were collected and analyzed to study growth hormone secretion pattern. The mean lead concentration in selected tissues was analyzed. The results showed that average daily gain, average daily feed intake, and feed conversion ratio of pigs were improved by 8.97% (p < 0.05), 3.90% (p < 0.05), and 4.76% (p < 0.05), respectively, with the supplementation of MSC compared to the control group. Serum sample analysis indicated that peak amplitude, base-line level, and mean level of growth hormone were increased by 117.14% (p < 0.01), 42.78% (p < 0.01), and 51.75% (p < 0.01), respectively. Supplementation of MSC in the diet was found to significantly reduce lead concentration of tissues in blood, brain, liver, bone, kidney and hair.

Alternatives to antibiotic growth promoters in prevention of diarrhoea in weaned piglets: a review

“…Multiple studies have confirmed the decontaminating properties of clay minerals. They can bind: -aflatoxins (Phillips et al, 1987(Phillips et al, , 1988Lindemann et al, 1993;Schell et al, 1993a,b;Phillips et al, 2002;Abdel-Wahhab et al, 2002;Huebner and Phillips, 2003;Rizzi et al, 2003;Shi et al, 2005Shi et al, , 2007Maciel et al, 2007;Magnoli et al, 2008;Nguyen et al, 2008), -plant metabolites (Dominy et al, 2004), -heavy metals (Hassen et al, 2003;Katsumata et al, 2003;Lin et al, 2004;Xu et al, 2004;Yu et al, 2005Yu et al, , 2008Abbes et al, 2007), -toxins (Knezevich andTadic, 1994).…”

“…Xia et al (2004) reported that Cu 2+ -enriched MMT significantly decreased the frequency of diarrhoea by up to 72 per cent and significantly increased the villus height and the villus height to crypt depth ratio in the jejunal mucosa by 19 and 37 per cent, respectively. Specific physical and chemical modifications -nanocomposites (Lin et al, 2004;Xu et al, 2004;Shi et al, 2005Shi et al, , 2007Yu et al, 2008), and complexes with organic materials (Xu et al, 1997;Herrera et al, 2000Herrera et al, , 2004Koh and Dixon, 2001), are characterized by much higher adsorptive abilities than other regular clay minerals. The effect of clay minerals can also be reinforced by the addition of other components such as charcoal or antioxidants (Bonna et al, 1991).…”

Dietary Kaolin Clay in Pre- and Post-Weaned Piglets and Its Influence on Haematological and Biochemical Parameters, and Intestinal Microflora Status

“…They show strong sorption properties, reduce the surface tension of the intestinal contents, enhance liver function emulsification of fats, have the ability to bind bacterial toxins and mycotoxins (Knezevich and Tadic, 1994;Magnoli et al, 2008;Trckova et al, 2009;Panichev et al, 2013;Schneider et al, 2017). They also cause a reduction in the emission of toxic gases from the litter (Schneider et al, 2017), limit the bioaccumulation of toxic metals (Yu et al, 2008) and supplement the animal diet with a range of macro-and micro-minerals like iron, magnesium or silicon (Al-Ani et al, 2006).…”

Scientific Opinion on the safety and efficacy of bentonite (dioctahedral montmorillonite) as feed additive for all species

“…Montmorillonite was found to be efficient in binding cadmium added to the basal diet at 0.5 % (Xu et al, 2004;Yu et al, 2009), showing less deposition in tissue and increased excretion. Concerning lead it was found that montmorillonite at an incorporation rate of 0.5 % reduced toxic effects in the liver (Yu et al, 2006) and decreased lead levels of tissues while improving performance parameters (Yu et al, 2005(Yu et al, , 2008. Grudnik et al (2005) found that 3 % bentonite in the diet reduced thallium concentration in whole eggs and thallium accumulation in muscle of laying hens.…”