Manganese bioavailability in a MN-methionine chelate

Fly, Alyce D.; Izquierdo, Òscar; Lowry, Karen R.; Baker, David H.

doi:10.1016/s0271-5317(89)80035-1

Cited by 42 publications

(18 citation statements)

References 9 publications

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“…It is well known that the use of proteinated forms of trace elements increases their bioavailability for the bird organism (Baker et al 1987;Fly et al 1989;Wendekind et al 1990; Van der Klis and Kemme 2002;Cao et al 2003;Nollet et al 2005;Lim et al 2006;Nollet et al 2008). The feeding study performed by Leeson (2003) showed that the bioavailability of proteinated forms of elements supplemented to the diet for broilers was at least by 30% higher than that of inorganic forms of elements.…”

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confidence: 99%

Effect of Dietary Supplementation of Trace Elements on the Growth Performance and Their Distribution in the Breast and Thigh Muscles Depending on the Age of Broiler Chickens

Petrovič

Nollet²,

Kováč

2010

Acta Vet. Brno

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This study was designed to determine the effects of dietary supplementation of different doses and forms of Cu, Zn, Fe, Mn and Se on the growth performance and concentration of these elements in the breast and thigh muscle of Ross 308 broiler chickens at the age of 21, 35 and 42 days. The diets for groups 1 and 2 of birds were supplemented with equivalent amounts of trace elements in an inorganic form (Cu sulphate 5 mg·kg , respectively. Groups 3 and 4 received the same feed as chickens in groups 1 and 2 but with a highly reduced amount of supplemented nutrients in the organic "proteinated" form (Bioplex Cu 2.5 mg·kg -1 , Bioplex Fe, Bioplex Zn, Bioplex Mn 10 mg·kg -1 ), except for selenium which was given at the dose of Se 0.3 mg·kg -1 as sodium selenite or selenized yeast (Sel-Plex), respectively. The diet supplemented with the restricted doses of trace elements in proteinated forms (50% Cu, 20% Fe, Zn, Mn and a regular level of Se) had the same effect on the indexes of growth performance (such as the body weight on days 1, 7, 14, 21, 28, 35 and 42 of life, total feed intake, feed conversion ratio, carcass yield and abdominal fat of chickens) as well as on the concentration of Cu, Fe, Zn and Mn (except for Se) in the breast and thigh muscle of broilers at the age of 21, 35 and 42 days as did the diet with the recommended doses of minerals in the form of inorganic salts. Unlike sodium selenite, the proteinated form of Se (selenized yeast) is able to build a significant deposit of this element in the muscle of broilers at the age of 21, 35 and 42 days. Poultry, mineral nutrients, proteinated form, productive indexes, deposition in muscle

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confidence: 99%

Effect of Dietary Supplementation of Trace Elements on the Growth Performance and Their Distribution in the Breast and Thigh Muscles Depending on the Age of Broiler Chickens

Petrovič

Nollet²,

Kováč

2010

Acta Vet. Brno

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“…The results of studies that addressed the bioavailability of complexed manganese are controversial. Evaluation of Mn when chelated or complexed with protein or methionine has indicated similar (Baker and Halpin, 1987;Fly et al, 1989) or superior (Henry et al, 1989) effects compared with inorganic sources. Smith et al (1995) also reported that Mn from Mn proteinate was more available than Mn in MnSO 4 when measured by tibial response to dietary Mn supplementation.…”

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confidence: 99%

Effect of inorganic and organic manganese supplementation on the performance and tissue manganese content of broiler chicks

Berta

Andrásofszky

Bersényi

et al. 2004

Acta Veterinaria Hungarica

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The effects of dietary levels of manganese (Mn) in inorganic (MnO) and organic (Mn fumarate) forms were evaluated on cockerel chicks. A basal cornsoybean diet with 23 mg/kg Mn was supplemented with levels of 0, 30, 60 and 240 ppm Mn from both Mn sources. Each treatment was replicated in five pens of 10 chicks. The chicks were fed diets ad libitum from 14 to 49 days of age, after which five birds per treatment were sacrificed for pathomorphological examinations and analysis. The treatments did not exert significant effects on the body weight (BW), the feed/gain (F/G) ratio or the mortality rate. According to the necropsy findings, no growth retardation or emaciation occurred in either of the groups and the differences in the average absolute and relative organ weights were not significant (P > 0.05). Tissue analysis indicated that the tibia showed the greatest response to Mn, followed by the liver and kidney. Accumulation in the tibia was higher (P < 0.05) with supplements of 30, 60 and 240 mg/kg from both Mn sources (3.71, 3.78, 4.44, and 3.68, 4.00, 4.36 mg/kg DM, MnO and Mn fumarate, respectively) compared to the control group (3.21 mg/kg). Accumulation in the liver increased significantly (P < 0.05) only with supplements of 60 and 240 ppm independently of the Mn source (12.7, 14.2, and 14.0, 14.9 mg/kg, respectively) compared to the control (9.8 mg/kg). Similarly, kidney tissue Mn was higher (P < 0.05) only with supplements of 60 and 240 ppm (12.8, 12.8, and 13.1, 12.5 mg/kg, respectively) compared to the control (10.2 mg/kg). At the same level of supplementation of the two Mn sources there were no significant differences (P > 0.05) between the Mn concentrations of organs and tissues. Droppings sensitively reflected the intake, whereas blood plasma and feathers showed only the extreme Mn loading.

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“…Bone has generally been used to estimate Mn bioavailability from different sources [3,4,7]. It has been shown that bone Mn concentration is a sensitive indicator of Mn bioavailability in chicks fed physiological or high levels of dietary Mn [4].…”

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confidence: 99%