Non-carcass components and wholesale cuts of Iranian fat-tailed lambs fed chromium nicotinate or chromium chloride

Mostafa-Tehrani, A.; Ghorbani, G.R.; Zare-Shahneh, Ahmad; Mirhadi, S A

doi:10.1016/j.smallrumres.2005.01.013

Cited by 18 publications

(11 citation statements)

References 22 publications

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“…Although postnatal continuation of dietary Cr restriction did not affect food intake in the offspring (despite the decrease observed in their plasma Cr levels from as early as three months of age), that the body weight was higher in CrR than in CrC offspring is in line with the reported increase in body weight in vitamin A deficiency. 35 However, the findings are at variance with no change reported in the body weight of pigs fed 25 -1500 ppb of Cr as chromium picolinate 36 and our earlier observations in the offspring of Mg-restricted rat dams. 15 These observations probably suggest that maternal Cr restriction may alter the fetal programming of the body composition and weight in the offspring.…”

Section: Discussioncontrasting

confidence: 45%

Maternal dietary chromium restriction programs muscle development and function in the rat offspring

Padmavathi

Rao

Lagishetty

et al. 2010

Exp Biol Med (Maywood)

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Intrauterine growth retardation programs the fetus to manipulated metabolic changes that lead to adult diseases. Considering that chromium (Cr) supplements influence lean body mass (LBM) in both humans and experimental animals, we have studied the effect of maternal Cr restriction on muscle development and function in the rat offspring. Female weanling Wistar/NIN rats received, for 12 weeks, a control or 65% Cr-restricted diet ad libitum and mated with control males. While control mothers/offspring received control diet throughout (CrC), some restricted mothers were switched to control diet from conception (CrRC) and parturition (CrRP) and their offspring were weaned on to control diet. Half of the remaining restricted pups were weaned on to control diet (CrRW) and the other half continued on restricted diet throughout (CrR). Maternal CrR significantly decreased the percent of LBM (LBM %) and fat-free mass (FFM %) in the offspring and this was associated with decreased expression of the myogenic genes: MyoD, Myf5 and MyoG. Surprisingly, expression of the muscle atrophy genes, Atrogin and MuRF 1, was also decreased in CrR offspring. Although basal glucose uptake by muscle was higher in CrR than in CrC offspring, the stimulation with insulin was comparable, implying no change in its insulin sensitivity. Rehabilitation partly corrected myogenic and atrophic gene expression but had no effect on LBM % or FFM % or glucose uptake by muscle. The results show that maternal Cr restriction in rats may irreversibly impair muscle development and glucose uptake by muscle. Modulation of muscle atrophy appears to be an adaptive mechanism to preserve muscle mass in CrR offspring.

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Section: Discussioncontrasting

confidence: 45%

Maternal dietary chromium restriction programs muscle development and function in the rat offspring

Padmavathi

Rao

Lagishetty

et al. 2010

Exp Biol Med (Maywood)

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“…Dietary intake of Cr in the USA and most industrialized countries is suboptimal [36]. Results showed that indexes of growth performance and carcass characteristics were favorably regulated when the supplemental dose of CrPic was set at 0.2 μg Cr/g [11,18,37]; however, there were no significant differences in these characteristics when the concentration of CrPic was increased to 0.4 μg Cr/g. Therefore, a suitable concentration of Cr in the form of CrPic for supplementation of the diet for pigs was concluded to be 1.61 μg/g (nearly 0.2 μg Cr/g).…”

Section: Discussionmentioning

confidence: 97%

Effect of Chromium Picolinate Supplementation on Growth Performance and Meat Characteristics of Swine

Zhang¹,

Dong

Zhang

et al. 2010

Biol Trace Elem Res

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The purpose of this study was to evaluate the effect of supplemental chromium (Cr) in the form of chromium picolinate (CrPic) on swine growth performance, meat quality, and protein deposition in skeletal muscle. Forty-eight piglets were divided into three groups randomly, fed with three different dietary levels of Cr (common basal feedstuff supplemented with a dose of 1.61 μg/g or 3.22 μg/g CrPic, which corresponded to 0.2 and 0.4 μg/g Cr). Results indicated that during the growing period (1-35 days), pigs fed with the diet supplemented with CrPic showed no improvement in body mass, average daily gain (ADG), feed consumption, or feed conversion rate (FCR) (P > 0.05). During the finishing period, a supplementary dose of 0.2 μg Cr/g improved daily weight gain significantly (P < 0.05), while the situation had no significance with 0.4 μg Cr/g (P > 0.05) supplemented. For the entire growing-finishing period, body mass increased by 3.86%, ADG rose by 6.08%, and the FCR decreased by 3.30%; levels of total muscular pigment and that in the ribeye areas significantly improved (P < 0.05) when supplementation with 0.2 μg Cr/g (P < 0.05) was employed. However, there were no significant changes when supplemented with 0.4 μg Cr/g. While there were no changes in yield of carcass, back fat, water holding capacity, or levels of muscular crude protein and fat (P > 0.05) in treatment, the ratio of fat-lean and RNA/DNA increased significantly supplemented with 0.2 μg Cr/g (P < 0.05), but there were no significance with 0.4 μg Cr/g supplementation. In addition, the muscular levels of cholesterol had slightly decreased and the content of DNA in skeletal muscle showed no marked changes with 0.2 or 0.4 μg/g Cr supplementation. In conclusion, the present results suggested that dietary Cr supplementation in the dose of 0.2 μg/g could promote the growth performance, carcass characteristics, and protein deposition.

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“…These were in agreement with Page et al(1993) who first reported increases in growth rate and ADG by the addition of 50 and 200 ppb Cr as CrPic to the diets of pigs. However, other studies have reported no changes in body weight and growth rate in pigs fed 250 to 500 ppb Cr from CrPic (Lindemann et al, 1995), rats fed 25 to 1 500 ppb Cr from CrPic (Hasten et al, 1997b), and lambs fed 200 to 1 000 ppb Cr from Cr nicotinate (Mostafa-Tehrani et al, 2006). The reason that low levels (less than 300 ppb) of Cr as CrNano increase BW and ADG in rats and high levels of Cr do not is not well understood.…”

Section: Discussionmentioning

confidence: 97%

Effects of chromium nanoparticle dosage on growth, body composition, serum hormones and tissue chromium in Sprague-Dawley rats

Zha

Wang

et al. 2007

J. Zhejiang Univ. - Sci. B

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This 6-week study was conducted to evaluate the effects of seven different levels of dietary chromium (Cr) (0, 75, 150, 300, 450, 600, and 1 200 ppb Cr) in the form of Cr nanoparticle (CrNano) on growth, body composition, serum hormones and tissue Cr in Sprague-Dawley (SD) rats. Seventy male SD rats (average initial body weight of (83.2±4.4) g) were randomly assigned to seven dietary treatments (n=10). At the end of the trial, body composition was assessed via dual energy X-ray absorptiometry (DEXA). All rats were then sacrificed to collect samples of blood, organs and tissues for determination of serum hormones and tissue Cr contents. The results indicated that lean body mass was significantly increased (P<0.05) due to the addition of 300 and 450 ppb Cr from CrNano. Supplementation of 150, 300, 450, and 600 ppb Cr decreased (P<0.05) percent body fat significantly. Average daily gain was increased (P<0.05) by addition of 75, 150, and 300 ppb Cr and feed efficiency was increased (P<0.05) by supplementation of 75, 300, and 450 ppb Cr. Addition of 300 and 450 ppb Cr decreased (P<0.05) the insulin level in serum greatly. Cr contents in liver and kidney were greatly increased (P<0.05) by the addition of Cr as CrNano in the dosage of from 150 ppb to 1 200 ppb. In addition, Supplementation of 300, 450, and 600 ppb Cr significantly increased (P<0.05) Cr content in the hind leg muscle. These results suggest that supplemental CrNano has beneficial effects on growth performance and body composition, and increases tissue Cr concentration in selected muscles.

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Non-carcass components and wholesale cuts of Iranian fat-tailed lambs fed chromium nicotinate or chromium chloride

Cited by 18 publications

References 22 publications

Maternal dietary chromium restriction programs muscle development and function in the rat offspring

Maternal dietary chromium restriction programs muscle development and function in the rat offspring

Effect of Chromium Picolinate Supplementation on Growth Performance and Meat Characteristics of Swine

Effects of chromium nanoparticle dosage on growth, body composition, serum hormones and tissue chromium in Sprague-Dawley rats

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