Effect of feeding intact brown seaweed <i>Ascophyllum nodosum</i> on some digestive parameters and on iodine content in edible tissues in pigs

Dierick, Noël; Ovyn, Anneke; Smet, Stefaan De

doi:10.1002/jsfa.3480

Cited by 96 publications

(98 citation statements)

References 63 publications

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“…Well-oriented villi and adjacent crypts (15)(16)(17)(18)(19)(20) were measured and the average villus length (V), crypt depth (C), V/C ratio, and total length V+C was calculated per piglet. Intraepithelial lymphocytes (IELs), expressed as IELs per 100 enterocytes, were determined according to Dierick et al (2009). This resulted in nine observations per diet group in both experiments.…”

Section: Sampling During Trial and At Slaughtermentioning

confidence: 99%

Fermented liquid feed for weaned piglets: impact of sedimentation in the feed slurry on performance and gut parameters

Missotten¹,

Michiels²,

Ovyn³

et al. 2015

CZECH J ANIM SCI

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ABSTRACT:In two experiments with weaned piglets, the effects of fermented liquid feed (FLF) (produced with probiotic strain Pediococcus acidilactici, Bactocell ® , Lallemand S.A.S.) on performance and some bacteriological and morpho-histological parameters of the gut were investigated, and the impact of sedimentation of the solids in the FLF thereon. In experiment I, FLF or the same dry feed (DRY) was offered ad libitum for 28 days to two groups of 15 weaned piglets (28 days of age) each (3 replicates of 5 pigs). Performance was negatively affected by feeding FLF and concomitant with that the group fed the FLF diet showed shorter villi (501 vs 550 µm) and smaller crypts (264 vs 289 µm) in the small intestine at 3 m proximal to the caecum (P < 0.05). It was assumed that these poorer results were due to sedimentation of the solids in the FLF and therefore a second experiment was conducted with sepiolite (10 g/kg) added to the feeds. Sepiolite tends to slow down the segregation of particles in slurry. The three feeding groups (weaned piglets, 27 days of age) in this experiment were DRY, DRY with probiotic (DRY+), and FLF. The group fed FLF (body weight gain (BWG) 254 g/piglet/day; feed : gain ratio 1.38) did now perform better (P < 0.05) than the groups fed the DRY (BWG 184 g/piglet/day; feed : gain ratio 1.52) and DRY+ (BWG 185 g/piglet/day; feed : gain ratio 1.48) diets, which did not differ. Villus length in the small intestine at 3 m proximal to the caecum was also higher for the group fed FLF (558 µm) compared with the group fed the DRY+ diet (490 µm; P < 0.05). It was concluded that feeding FLF is beneficial to freshly weaned piglets on condition that sedimentation of the solids in the feed slurry can be controlled.

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Section: Sampling During Trial and At Slaughtermentioning

confidence: 99%

Fermented liquid feed for weaned piglets: impact of sedimentation in the feed slurry on performance and gut parameters

Missotten¹,

Michiels²,

Ovyn³

et al. 2015

CZECH J ANIM SCI

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“…However, and despite the high micromineral content of most algae species, their use as mineral supplements has hardly been studied, except for iodine (I). Seaweed supplements in livestock are considered a way to increase I content of animal products, for instance porcine meat (Dierick et al, 2009), to provide a high level of I in food I deficient areas. I excretion in milk, proportional to dietary I supplements (European Food Safety Authority (EFSA), 2005a; Flachowsky, 2007;Franke et al, 2009a) is a good way to provide I to deficient human populations.…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that brown seaweeds are rich in amino acids, trace elements and vitamins; and also have antioxidant, antimicrobial and inmunomodulatory activities (Allen et al, 2001). So far, macro-algae research in animal nutrition has focused on its nutritional value and the animal performance response to dietary supplementation (Dierick et al, 2009; † E-mail: marta.miranda@usc.es Animal (2014) Rjiba et al, 2010). However, and despite the high micromineral content of most algae species, their use as mineral supplements has hardly been studied, except for iodine (I).…”

mentioning

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

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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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“…Dierick et al (2009) found a significant increase in iodine content in the muscles of pigs: from 15.5 µg kg -1 in the control group to 59.5 µg kg -1 in the seaweed group (for M. psoas) and from 19.9 µg kg -1 in the control group to 55.4 µg kg -1 in the seaweed group (for M. longissimus dorsi) [4]. In the work of Svoboda et al (2009) it was also noticed that the pigs which were given selenium from Se-enriched alga (Chlorella sp.)…”

Section: The Mineral Composition Of Meatmentioning

confidence: 99%

“…They have the potential to increase animal productivity, enhance resistance against diseases, provide a better digestibility of feed ingredients, and they can improve the gut flora, thus having a positive effect on the quality of animal products [3,4]. Seaweeds have been used as feed for domestic animals for a long time, if confined to the coastal regions.…”

Section: Introductionmentioning

confidence: 99%

New feed supplement from macroalgae as the dietary source of microelements for pigs

Michalak

Chojnacka

Korniewicz³

2015

Open Chemistry

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Abstract:The aim of the study was to perform feeding experiments on growing pigs in order to assess the impact of macroalga Enteromorpha sp. enriched with Zn(II) and Cu(II) ions via the biosorption process on the mineral composition of blood, meat, liver, feces and urine. In the control group, microelements were supplemented as inorganic salts, whereas in the experimental groups they were replaced by enriched macroalga. After 3 months of the feeding experiment, it was found that the meat was biofortified with Cr, Mn, Fe, Cu and Zn. The average content of Zn in the blood from the pigs fed with algae was higher by 9.5%, compared to that in the blood from pigs in the control group. The liver of growing pigs from the experimental group contained 16% less Cu and 18% less Zn than the liver in the control group. Growing pigs fed with macroalgae excreted in feces 27% more Zn than growing pigs in the control group, but 3.5 times less Cu. It could be concluded that the bioavailability of microelements to pigs from algae was higher than from the inorganic salts. Baltic macroalgae enriched with microelement ions could be potentially used as a biological feed additive.

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Effect of feeding intact brown seaweed Ascophyllum nodosum on some digestive parameters and on iodine content in edible tissues in pigs

Cited by 96 publications

References 63 publications

Fermented liquid feed for weaned piglets: impact of sedimentation in the feed slurry on performance and gut parameters

Fermented liquid feed for weaned piglets: impact of sedimentation in the feed slurry on performance and gut parameters

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

New feed supplement from macroalgae as the dietary source of microelements for pigs

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