The Use of High Magnesium Limestone in the Diet of the Laying Hen

Stillmak, S. J.; Sunde, M. L.

doi:10.3382/ps.0500564

Cited by 13 publications

(9 citation statements)

References 7 publications

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“…Increasing dietary Mg in laying hens had no significant effect on Ca retention although egg shell Ca content and bone Ca were significantly reduced and shell Mg increased (Atteh and Leeson, 1983b). Stillmak and Sunde (1971) reported that excess levels of Mg (1% of diet) in layer diets caused a cathartic action that shortened the time required for passage of feed through the hen digestive tract and resulted in a Ca deficiency. Other researchers, however, found no detrimental effects of excess Mg until a level of 8,380 mg/kg (Mehring and Johnson, 1965) or even 12,000 mg/kg feed (McWard, 1967) for laying chickens.…”

Section: Interaction With Ca and Pmentioning

confidence: 99%

“…Increasing dietary Mg levels could interfere directly with the process of calcification, leading to an increase in the incidence of leg problems (Atteh and Leeson, 1983a) and a decrease in bone ash in chicks (Nugara and Edwards, 1963). Because excessive dietary Mg is cathartic, there may be malabsorption of nutrients essential for bone growth, especially Ca and P (Stillmak and Sunde, 1971). 3.…”

Section: Interaction With Ca and Pmentioning

confidence: 99%

“…However, published data on Mg availability in poultry species are limited. Stillmak and Sunde (1971) reported based on tibia ash and body weight that Mg and Ca from dolomite were less available to chicks than that supplied from Ca and Mg carbonate. McGillivray and Smidt (1975) used semi-purified diets for biological evaluation of Mg sources in broilers.…”

Section: Mg Availability In Feedstuffsmentioning

confidence: 99%

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A review of the role of magnesium in poultry nutrition

Shastak

Rodehutscord

2015

World's Poultry Science Journal

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Magnesium has essential functions in cellular metabolism and bone development. Its actions are closely linked to calcium and phosphorus, making the achievement of the right proportion of these elements in diets an important issue in poultry nutrition. The magnesium requirement of poultry has rarely been studied and most studies conducted are more than 35 years old. Despite the fact that magnesium is adequately present in most plant-based diets, supplemental magnesium may positively affect poultry meat quality and body weight at certain developmental stages. However, excessive dietary magnesium could influence calcium and phosphorus availability and metabolism through different mechanisms. Understanding the effects of supplemental magnesium on the availability and metabolism of other dietary constituents and vice versa is important for formulating balanced diets and achieving maximal performance in poultry. Here we review this complex, insufficiently explored issue.

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Section: Interaction With Ca and Pmentioning

confidence: 99%

Section: Interaction With Ca and Pmentioning

confidence: 99%

Section: Mg Availability In Feedstuffsmentioning

confidence: 99%

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A review of the role of magnesium in poultry nutrition

Shastak

Rodehutscord

2015

World's Poultry Science Journal

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“…High Mg supplementation may cause laxative problems. Stillmak and Sunde (1971) stated that an excess of Mg (1% in the diet) reduced dry matter of faeces, accelerated the passage of digesta, and caused a deficit of Ca. Excess of Mg in hens can also reduce the activity of parathyroid hormone, which reduces blood Ca and subsequently also egg production and shell quality (Hess and Britton 1997).…”

Section: Introductionmentioning

confidence: 99%

Effect of dietary magnesium, calcium, phosphorus, and limestone grain size on productive performance and eggshell quality of hens

Skřivan¹,

Englmaierová²,

Marounek³

et al. 2016

Czech J. Anim. Sci.

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ABSTRACT:Two experiments conducted on laying hens, aged 50 and 52 weeks, were carried out to evaluate the effect of dietary Mg and its relationship to the Ca : NPP (non-phytate phosphorus) ratio using a various grain-size of limestone. The Ca : NPP ratio in each experiment was 12.8 and 18, respectively. Two Mg levels were evalued in the first (1.56 and 4.0 g/kg) and the second experiment (1.52 and 4.0 g/kg). A fine-grained limestone (< 0.5 mm; FL) or a coarse-grained limestone (0.8-2 mm; CL) was used in the first experiment. In the second experiment, a mixture of both the aforementioned limestone forms (FCL) was used as the third alternative. The main parameters estimated in this study were egg production and egg shell breaking strength. In the first experiment, CL significantly increased hen-day egg production (P = 0.043) and Mg (in dietary concentration up to 4 g/kg) increased egg weight (P < 0.001). The addition of Mg to the mixed feed, together with CL, decreased yolk percentage (P = 0.008), increased egg shell percentage (P = 0.044), increased egg shell thickness (P = 0.014), and egg shell breaking strength (P = 0.003). Higher dietary Mg, together with a wider Ca : NPP ratio in the second experiment, increased egg production and egg weight (P < 0.001), but it did not influence egg shell breaking strength. CL increased egg shell breaking strength compared to the addition of FL, as well as FCL (P < 0.05), regardless of the Mg levels. Lower level of Mg with FL decreased ash content of shells (P = 0.004).

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“…Anhydrous MgSO 4 as the reference standard provided levels of added Mg ranging from 0 to 500 mg/kg. Stillmak and Sunde (1971) chose plasma Mg level as an indicator of Mg availability in chicks because of its positive linear correlation with the level of dietary Mg, as shown by Gardiner et al (1960). Based on this criterion, the authors concluded that the Mg in dolomite was less available than that contained in MgCO 3 .…”

Section: Introductionmentioning

confidence: 99%

Effects of Magnesium Sources and Levels on Some Tissue Magnesium Concentration and Bone Mechanical Properties in Broiler

Çufadar¹,

Göçmen²,

Kanbur³

2017

SJAFS

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This experiment was conducted to determine the effect of inorganic and organic sources and levels of magnesium (Mg) supplementation on plasma, tibia, meat and liver Mg concentration and mechanical properties of bones in broilers. A total of one day old 450 broiler chicks were used and assigned to six experiment groups each having five replicate, randomly. There were 15 chicks in each replicates. In the experiment magnesium sulphate (MgSO 4 ) was used as inorganic Mg source and magnesium proteinate was used as organic Mg source. Experimental diets were supplemented provide 0 (control), 0.2 and 0.4 % Mg levels inorganic and organic Mg source of basal ration, and experiment period was six weeks. Main effect of Mg source and source x level interaction effect had not significant on plasma, liver, breast and thigh meat Mg concentration. While treatments did not significant effect on liver, breast and thigh meat Mg concentration, the main effect of Mg levels was significant effect on plasma Mg concentration. Plasma Mg concentration which were fed with ration added 0.2 and 0.4 % Mg level was higher than the control group. Tibia Ca concentration which were fed with ration added organic*0.2 and 0.4 % Mg levels were higher than the other groups. Tibia P concentration of organic Mg source fed with the group were higher than the inorganic source. The highest tibia Mg concentration were found to fed with organic*0.4 % Mg level of group. Tibia shear force and tibia stress which were fed with ration added 0.2 and 0.4 % Mg levels were higher than the control group. Supplementation of Mg in broiler diet was increased plasma Mg concentration and tibia shear force and also, tibia Ca and P concentration of organic Mg source fed with the group were higher than the inorganic Mg source.

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The Use of High Magnesium Limestone in the Diet of the Laying Hen

Cited by 13 publications

References 7 publications

A review of the role of magnesium in poultry nutrition

A review of the role of magnesium in poultry nutrition

Effect of dietary magnesium, calcium, phosphorus, and limestone grain size on productive performance and eggshell quality of hens

Effects of Magnesium Sources and Levels on Some Tissue Magnesium Concentration and Bone Mechanical Properties in Broiler

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