Factors affecting trace element status in calves in NW Spain

Blanco‐Penedo, Isabel; Shore, Richard F.; Miranda, Marta; Benedito, José Luís; López‐Alonso, Marta

doi:10.1016/j.livsci.2008.11.011

Cited by 36 publications

(17 citation statements)

References 25 publications

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“…Iron concentrations were higher in BO compared to those in the BC system. Similar results have been reported in beef cattle (Blanco-Penedo et al 2009) and pigs (Lopez-Alonso et al 2012). The significantly higher hepatic iron concentrations in organic have been associated to the soil consumption when grazing (Rey-Crespo et al 2013).…”

Section: Discussionsupporting

confidence: 88%

Combined Stable Isotopes and Multi-element Analysis to Research the Difference Between Organic and Conventional Chicken

Zhao

2016

Food Anal. Methods

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The objective of this study was to investigate the difference of chicken from organic and conventional systems. Chicken samples from three farms (Beijing conventional farm, Beijing organic farm, and Jilin organic farm) of each type were measured for contents of protein and fat, stable carbon and nitrogen isotope ratios, and concentrations of 12 mineral elements (Na, Mg, K, Ca, V, Fe, Co, Ni, Cu, Rb, Ba, and Pb). As a result, the chicken of two organic groups (Beijing organic and Jilin organic) yielded more protein than the Beijing conventional group. The nitrogen and carbon stable isotope ratios of de-fatted chicken from organic groups were higher than those of conventional ones. Mineral elements in de-fatted chicken samples showed significant differences (p < 0.05) except for Mg. The analysis data of stable isotope ratios and multielements were subjected to principal component analysis (PCA). The organic and conventional groups can be clearly classified through PCA. The combination of stable isotopes and multi-elements can further classify the geographical origin of chicken. The research work brought about a discovery of the difference between the organic and conventional chicken.

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Section: Discussionsupporting

confidence: 88%

Combined Stable Isotopes and Multi-element Analysis to Research the Difference Between Organic and Conventional Chicken

Zhao

2016

Food Anal. Methods

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“…In rare cases acute deficiency or toxicity may occur and remedial actions may be complex and difficult. On the contrary, subclinical deficiencies or toxicities, which are very difficult to diagnose but associated with low productivity, are very common worldwide [1, 9, 106]. …”

Section: The Defect Of Sustainable Systemsmentioning

confidence: 99%

“…The recommendations for livestock in the USA are perhaps more up to date [3–6]. Mineral recommendations should include a safety margin to take account of the presence of antagonists [7–9]. For example, in ruminants Cu uptake is inhibited particularly by Mo but also by S and to a lesser extent by Fe [1] and high levels of Ca in the feed inhibit the uptake of Zn.…”

Section: Introductionmentioning

confidence: 99%

Trace Minerals and Livestock: Not Too Much Not Too Little

López‐Alonso¹

2012

ISRN Veterinary Science

119

102

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The new approaches of the animal production systems make managing the mineral nutrition a challenge. Versus the excessive, trace mineral supply in intensively managed livestock, well above the physiological requirements, is the no trace mineral supplementation of organic systems, which become highly dependent on trace minerals in the soil. Nowadays, in addition to the animal health perspective, trace mineral nutrition must be environment friendly and allow getting mineral-enriched animal products. We are in a new scenario, where a balance between animal trace mineral needs and limits is needed. This papers focuses on different aspects that will help us to enter a critical dialogue in relation to animal-human-environment.

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“…European Union regulations stipulate that at least 60% of feed on organic farms must be fresh or conserved forage; limiting the routine use of vitamin and mineral preparations (Commission Regulation (EC), 2008), Limiting the use of concentrates and relying on soil minerals (which can be low in some areas) can lead to some mineral deficiencies (Blanco-Penedo et al, 2009). Within organic livestock, dairy cattle are possibly the animal species in which nutrition plays the major role because of their great nutritional requirements during early lactation, and to meet them the organic regulations allow a higher proportion of concentrate feed (50%) compared with other livestock groups (EC, 2008).…”

Section: Introductionmentioning

confidence: 99%

The use of seaweed from the Galician coast as a mineral supplement in organic dairy cattle

Rey-Crespo

López‐Alonso

Miranda

2014

Animal

Self Cite

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This study was designed to assess the value of seaweeds from the Galician coast as a source of minerals (especially iodine (I) but also other micro-minerals) in organic dairy cattle. It was conducted in an organic dairy farm in the Lugo province that typically represents the organic milk production in NW Spain. The animal's diet consisted mainly of local forage (at pasture or as hay and silage in the winter) and 5 kg of purchased concentrate/day per animal (representing 23.5% of feed intake). Based on the mineral composition of the diet, the physiological requirements and the EU maximum authorised levels in feed, a supplement composed by Sea Lettuce (Ulva rigida) (as flakes, 80%), Japanese Wireweed (Sargasum muticum) (flakes, 17.5%) and Furbelows (Saccorhiza polyschides) (powder, 2.5%) was formulated to give 100 g/animal per day. Sixteen Holstein Friesian lactating cows were randomly selected and assigned to the control (n = 8) and algae-supplemented groups (n = 8). Both groups had exactly the same feeding and management with the exception of the algae supplement, which was mixed with the concentrate feed and given to the animals at their morning milking for 10 weeks. Heparinised blood (for plasma analysis) and milk samples were collected at 2-week intervals and analysed for toxic and trace element concentrations by inductively coupled plasma-mass spectrometry or inductively coupled plasma-optical emission spectrometry. The algae supplement significantly improved the animals' mineral status, particularly I and selenium that were low on the farm. However, the effect of the algae supplement on the molybdenum status in cattle needs further investigation because of its great relevance on copper metabolism in ruminants. The I supply deserves special attention, since this element is at a very high concentration in brown-algae species and it is excreted in the milk proportionally to its concentration in plasma concentrations (mean ± s.e. in the algae-supplemented and control groups were 268 ± 54 and 180 ± 42 µg/l, respectively).Keywords: dairy cattle, iodine, minerals, organic production, seaweed ImplicationsOur study demonstrates the potential of seaweeds as a source of microminerals in dairy cattle. The algae supplement is well accepted by the animals and significantly improves mineral status (particularly iodine and selenium) of the animals. IntroductionEuropean Union regulations stipulate that at least 60% of feed on organic farms must be fresh or conserved forage; limiting the routine use of vitamin and mineral preparations (Commission Regulation (EC), 2008), Limiting the use of concentrates and relying on soil minerals (which can be low in some areas) can lead to some mineral deficiencies (Blanco-Penedo et al., 2009). Within organic livestock, dairy cattle are possibly the animal species in which nutrition plays the major role because of their great nutritional requirements during early lactation, and to meet them the organic regulations allow a higher proportion of concentrate feed (50%) compared with other live...

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Factors affecting trace element status in calves in NW Spain

Cited by 36 publications

References 25 publications

Combined Stable Isotopes and Multi-element Analysis to Research the Difference Between Organic and Conventional Chicken

Combined Stable Isotopes and Multi-element Analysis to Research the Difference Between Organic and Conventional Chicken

Trace Minerals and Livestock: Not Too Much Not Too Little

The use of seaweed from the Galician coast as a mineral supplement in organic dairy cattle

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