the content of macroelements and microelements. Additionally, the presence of heavy metals was verified and

Overview

This source page is a mechanical bulk-ingest record for a PDF in the methylmercury infant-formula research pull. It preserves source-level identity, routeable product/analyte scope, and exact extracted numeric lines for later human or fresh-context audit. It does not derive HMTc thresholds, percentiles, or brand-by-brand comparisons.

Key numbers

The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:

• Acta Sci. Pol. Zootechnica 19(4) 2020, 47–56
• www.asp.zut.edu.pl pISSN 1644-0714 eISSN 2300-6145 DOI:10.21005/asp.2020.19.4.06
• ORIGINAL PAPER Accepted: 07.12.2020
• of Technology in Szczecin, Klemensa Janickiego 29, 71-270 Szczecin, Poland
• mineral ratios were estimated. The material for the research consisted of 15 randomly selected industrial household
• although the potassium level in 33% of the analyzed feeds was below the recommended minimum. 20% of the
• family members. According to The European Pet Food microelements (Davies et al. 2017). Owners usually make
• Industry (FEDIAF) Annual report (FEDIAF 2020a) – the mistake of choosing food that is not adjusted to the
• European Union. There are 7.7 million of them in Poland, mon problem is giving adult dogs of small breeds a puppy
• and 87.5 million in the entire Europe. As reported by food, although dogs of these breeds mature faster than
• FCI, the approximate total number of dogs (pure-breed or large breeds dogs (Posada et al. 2014).
• not) around the world is about 147 million. The owners Few authors of scientific papers deal with the topic
• pet food industry is changing dynamically. Pet foods are 2018). According to legal regulations, a product marked
• tional trends. In the nutrition of dogs are mainly used dry out leading to nutrient deficiencies (EC 2009). Many dogs
• breed size (Di Donfrancesco et al. 2014). Despite this, it ity of pet food (Farcas et al. 2013, Kanakubo et al. 2015).
• Uniwersytetu Technologicznego w Szczecinie, Szczecin 2020
• K˛epińska-Pacelik, J., Biel, W. (2020). Analysis of mineral compounds in dry dog foods and their compliance with nutritional
• guidelines. Acta Sci. Pol. Zootechnica, 19(4), 47–56. DOI: 10.21005/asp.2020.19.4.06
• duction technology is played by the nutrition regime and grams per 100 g DM. The material for the analysis of
• type of feed and additives used (Kiczorowska et al. 2015). microelements concentrations was mineralized in a mix-
• safety of dog food and comparing the results of the ana- macroelements are expressed as g per 100 g DM. The re-
• lyzes with the nutritional guides or the producer’ decla- sults of trace elements are expressed as mg per 100 g DM.
• FEDIAF has established nutrition guidelines based on mendations from FEDIAF (2020b) considering an energy
• National Research Council and scientific research. In ad- intake of 110 kcal/kg body weight (BW)0.75 for dogs with
• dition to the basic composition, FEDIAF also contains moderate activity (1–3 hours per day). All chemical de-
• cium to phosphorus (Davies et al. 2017). Apart from the
• al. 2010). Even in trace amounts, heavy metals can cause ysis of variance using the Duncan multiple range test
• serious problems for all organisms, and their toxicity is using Statistica 13.1 (StatSoft Inc. 2016).
• absorption channel (Jaishankar et al. 2014, Abd-Elhakim
• et al. 2016, Squadrone et al. 2017). Microelements and macroelements
• was analyzed (Table 1).
• The material for the study included 15 randomly selected and conduction of nerve impulses. Plays an important
• breed dogs (S1-S5); five for large breed dogs (L1-L5); and excess of Ca can lead to disorders in skeletal develop-
• five for dogs of all breeds (A1-A5). Samples of feed were ment (Dobenecker et al. 2006, Mack et al. 2015, Böswald
• ground in a laboratory mill type KNIFETEC 1095 (Foss et al. 2019). Calcium deficiency can lead to pathologi-
• Riehm colorimetric method with ammonium molybdate, 3–4 months, and clinical signs are growth retardation,
• A mass spectrometer (iCE 3000 series, Thermo Fisher 2012). The minimum recommended level (MRL) of cal-
• Scientific) was used to determine the content of calcium, cium in the feed, is 0.5 g per 100 g of dry matter (DM),
• potassium, magnesium, iron, zinc, manganese, copper, while the nutritional limit (NL), 2.5 g per 100 g DM.
• lead. The material for the analysis of macroelements con- mal range. The highest average, 1.77 g per 100 g DM,
• (VI) and chloric acid (VII). The results are expressed as where the range was 1.11–2.37 g per 100 g DM. In this
• 48 www.asp.zut.edu.pl

Methods (brief)

• five for dogs of all breeds (A1-A5). Samples of feed were ment (Dobenecker et al. 2006, Mack et al. 2015, Böswald

Implications

This page makes the source discoverable for category-level evidence routing. Values remain source-native and should be used only with the stated matrix, species, basis, geography, and censoring context from the paper. The page does not convert total mercury to methylmercury or use total arsenic as inorganic arsenic.

Wiki pages this source may touch

• Fish — marine, predatory (tuna, swordfish, shark, king mackerel)
• Shellfish (shrimp, crab, lobster, clams, oysters, mussels)
• Mercury
• Cadmium
• Lead
• Arsenic
• Nickel
• Aluminum
• Chromium

Verification notes

• Identity check: DOI, raw handle, candidate cite-key, and SHA-256 were compared against existing wiki/sources/ pages before creation.
• Full-PDF read: pdftotext -layout was run on the full PDF twice; extracted text hashes matched before the page was written.
• Numeric verification: numeric/table-bearing lines were selected mechanically from the verified extraction and preserved without unit conversion or rounding.
• Brand firewall: the worker skips PDFs when extracted numeric lines appear brand/manufacturer-sensitive; this page contains category-level or species-level evidence only.
• HMTc firewall: no threshold, percentile, pass/fail, clean/dirty, or certification math is stated.

Update history

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