scholarly journals Concentrations of macronutrients, minerals and heavy metals in home-prepared diets for adult dogs and cats

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Vivian Pedrinelli ◽  
Rafael Vessecchi Amorim Zafalon ◽  
Roberta Bueno Ayres Rodrigues ◽  
Mariana Pamplona Perini ◽  
Renata Maria Consentino Conti ◽  
...  

Abstract Pet owners often don’t acknowledge the need for home-prepared diet formulation by a trained professional and may use recipes from sources such as the internet. Macronutrient and mineral composition of home-prepared diets were analyzed and compared to NRC and FEDIAF recommendations, and heavy metal concentrations were analyzed and compared to FDA maximum tolerable levels (MTL) for dogs and cats. Recipes of home-prepared diets for adult dogs (n = 75) and cats (n = 25) were evaluated. Analyses of protein, fat, and fiber were performed according to AOAC, and mineral and heavy metal analyses were performed using inductively coupled plasma optical emission spectrometry (ICP-OES). None of the diets supplied recommended levels of all nutrients evaluated, and more than 84.0% of diets presented three or more nutrients below recommendations. Nutrients with most levels below recommendations were calcium and potassium in recipes for dogs and iron and zinc in recipes for cats. As for heavy metals, levels of lead, cobalt, mercury, uranium, and vanadium were above MTLs. Results suggest that home-prepared diets may be a health risk to dogs and cats if not properly formulated. Furthermore, the chronic heavy metal intake must be better elucidated in order to understand the full impact of results.

2020 ◽  
Vol 10 (1) ◽  
pp. 61-69
Author(s):  
Diana Demiyah Mohd Hamdan ◽  
Amirah Syuhada Mohd Azman ◽  
Fazilah Musa ◽  
Mohd Khalizan Sabullah

The prospect of three native upland paddy landraces known as Bokilong, Ponsulak and Taragang as heavy metals accumulator for phytoremediation was determined. Bioaccumulation of heavy metals (As, Cd, Cr, Cu, Fe, Pb, and Zn) in various parts of paddy plants collected from Kiulu valley, North Borneo in the natural conditions during the vegetative phase and harvest season were analysed by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). All selected heavy metals were traced in soil samples of all three paddy landraces rhizosphere where the most available heavy metals were Fe followed by Zn. Heavy metals bioavailability in soil seemed to be influenced by the local climate of the cultivation field. Bokilong landrace is an accumulator of As, Cd, Cu, Pb and Zn. Ponsulak paddy can help clean up the soil by phytoextraction of As, Cr, Cu, Fe and Zn. Taragang paddy has a prospect in phytoextraction of Cd and Pb to remediate excess amount of this element in the soil. Different heavy metals concentration trends were accumulated in these three paddy landraces in grain indicated different nutritional values. Heavy metal uptake characteristic differs between upland paddy landraces and there was also environmental influence affecting the mobility rate of these elements in paddy plant depending on the element type and paddy genotype.


2018 ◽  
Vol 55 (5A) ◽  
pp. 143
Author(s):  
Nguyen Thi Thao

The metal contents of 19 tea leave samples, Camellia sinensis L., from Yen Bai and Tuyen Quang provinces were determined using inductively coupled plasma optical emission spectrometry (ICP-OES) and atomic absorption spectrometry (AAS). Total 18 elements in tea leaves were determined including macroelement such as Al, Ca, K, Mg, Mn; trace element such as Na, Ba, Fe, Cu, Sn, Zn, Se, Ni, B and heavy metal (Pb, Hg, Cd and metalloid As). The results show that, K content was the highest among the macroelement, followed by Mg, Ca, Mn and Al. There was a wide variation of the trace metal content among the tea leaves coming from different province. The levels of heavy metal content in most of the samples were not detectable or below the acceptable level as required by Ministry of Health.


2020 ◽  
Vol 9 (3) ◽  
Author(s):  
Dhary Alewy Almashhadany ◽  
Hawraz Sami Khalid ◽  
Hoshyar Saadi Ali

Food contamination with heavy metals may pose a serious threat to human health. Fishes are the most common seafood globally. This study aimed to evaluate the levels of heavy metals in different fishes sold in Erbil city markets. The targeted heavy metal elements were cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), lead (Pb), mercury (Hg), manganese (Mn), nickel (Ni), selenium (Se), and zinc (Zn). Seventeen dorsal meat samples were digested and subjected to metal analysis by Inductively Coupled Plasma Optical Emission Spectrometry. Co, Mn, Cu and Se were detected in all samples, while cadmium was below the detectable level in all samples. The average concentrations of targeted trace elements were 0.03±0.016, 0.02±0.03, 0.07±0.08, 0.10±0.08, 0.03±0.03, and 2.90±3.33 mg/kg for cobalt, chromium, copper, manganese, nickel, and zinc, respectively. Lead was only found in one sample (5.88%). On the contrary, mercury was detected in all samples but in low concentration (0.14±0.07). All detected heavy metals with specified permissible limits by FAO/WHO were significantly lower than the permissible limits. Based on detected levels of targeted heavy metals, consumption of such fish has no potential risks to human.


2015 ◽  
Vol 1113 ◽  
pp. 759-763
Author(s):  
Zitty Sarah Ismail ◽  
Nurzulaifa Shaheera Erne Mohd Yasim ◽  
Farhana Mazlan ◽  
Suhanom Mohd Zaki

The purpose of the present study is to identify and to analyze of selected elemental composition in a multi storey house. The concentrations of heavy metals (Cd, Cu, Fe, Ni, Pb and Zn) were determined using inductively coupled plasma-optical emission spectrometry (ICP-OES) after digestion with nitric acid and sulphuric acid. The results showed that the highest concentration of heavy metals in eight investigated microenvironment was Fe. The heavy metals concentration were in the order of Fe > Cr > Zn > Cu > Pb > Mn > Ni. All six heavy metals concentration at four different levels of multi storey house were followed the order of Level 1 > Level 2 > Level 3 > Level 4. The correlation analysis was applied to metals variable in order to identify the sources of airborne contaminant.It was indicated that the possible contributor heavy metals in multi storey houses were originated from outdoor sources such as vehicle exhausts, street dust and indoor sources such as cooking, smoking, and cleaning activities.


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