scholarly journals The effect of copper and zinc concentrations in feed and water on their distribution in beef cattle tissues

2007 ◽  
Vol 23 (5-6-2) ◽  
pp. 35-48 ◽  
Author(s):  
M. Vukasinovic ◽  
V. Kaljevic ◽  
M. Sekler ◽  
V. Kurcubic ◽  
S. Obradovic
Keyword(s):  
Beef Cattle ◽  
Muscular Tissue ◽  
Correlation Dependence ◽  
Copper And Zinc ◽  
Maximum Permissible Concentrations ◽  
Zn Content ◽  
Zinc Concentrations ◽  
Aas Method ◽  
Effect Of Copper ◽  
Cu And Zn

An investigation of the effect of copper (Cu) and zinc (Zn) concentrations on their distribution in beef cattle tissues was conducted using feed trial with the following four nutrition treatments applied. At the end of the trial, samples of the muscular tissue, liver and kidneys of slaughtered cattle were taken from 10 head of cattle of the I group, 30 head of the II and III groups and 15 head of the IV group. The analyses were made by using the spectroscopic AAS method. Investigation results showed that all groups of cattle were given water with Cu and Zn contents below maximum permissible concentrations (MPC). The content of Cu and Zn in the tissues of the beef cattle in our experiment directly depended on their content in the concentrated feed. Copper is deposited in the liver the most, and Zn in the muscular tissue (excepting the II group of cattle). Correlation dependence of Cu and Zn content in the tissues from content in DM is complete (total), except in the case of Zn content in kidney, where is above mentioned correlation very strong (0.795).

scholarly journals The effects of pregnancy and lactation on copper and zinc retention in the rat

1977 ◽  
Vol 38 (3) ◽  
pp. 407-416 ◽  
Author(s):  
R. B. Williams ◽  
N. T. Davies ◽  
I. McDonald
Keyword(s):  
Maternal Body ◽  
Copper And Zinc ◽  
Zn Content ◽  
Pregnancy And Lactation ◽  
Zinc Retention ◽  
Cu And Zn ◽  
In Pregnancy

1. The accretion of copper and zinc in maternal tissues, conception products and postnatal offspring of the rat was determined at different stages of pregnancy and lactation.2. Equations relating the weight of the bodies of the developing young and of the amounts of Cu and Zn in them to the time that has elapsed since conception showed that, early in pregnancy, the specific rates of accretion of Cu or Zn were greater than that of weight, but declined more rapidly as development continued. The instantaneous rates of accretion of both metals rose throughout pregnancy but only that of Cu continued to increase during lactation.3. The amount of Cu in the maternal body rose significantly during pregnancy and declined thereafter, but relatively small changes in its Zn content occurred.4. The results are discussed in relation to the relative demands for these metals during pregnancy and lactation.

COPPER AND ZINC INDUCED CHANGES IN SOYBEAN (Glycine max (L.) Merr.)

1970 ◽  
pp. 09
Author(s):  
K. SANKAR GANESH ◽  
P. SUNDARAMOORTHY
Keyword(s):  
Heavy Metals ◽  
Glycine Max ◽  
Aquatic Environment ◽  
Morphological Traits ◽  
Industrial Activities ◽  
Copper And Zinc ◽  
Glycine Max L ◽  
Zinc Concentrations ◽  
Induced Changes

Heavy metals are one of the most important pollutants released to the aquatic environment by the various industrial activities. The use of these wastewater for irrigation results accumulation of heavy metals in soil and plants. So, the present investigation deals with the various concentrations (0, 5, 10, 25, 50, 100, 200 and 300 mg/l) of copper and zinc on germination studies of soybean. The different concentrations of copper and zinc were used for germination studies. The seedlings were allowed to grow upto seven days. The studied morphological traits increased at 5 mg/l concentration and these parameters are gradually decreased with the increase of copper and zinc concentrations.

Evaluation of iron, copper and zinc concentrations in commercial foods formulated for healthy cats

2021 ◽  
pp. 1098612X2110262
Author(s):  
Stacie Summers ◽  
Jonathan Stockman ◽  
Jennifer A Larsen
Keyword(s):  
Food Products ◽  
Metabolizable Energy ◽  
Life Stages ◽  
Trace Mineral ◽  
Iron Copper ◽  
Copper And Zinc ◽  
Zinc Concentrations ◽  
Dry Food ◽  
Raw Foods ◽  
Mineral Concentrations

Objectives The aim of this study was to analyze iron, copper and zinc concentrations in commercial foods and compare among food formats (dry, canned, raw), foods marketed by age category (adult 1+ years and senior 7+ years) and foods intended for adult maintenance vs all life stages. Methods In total, 112 commercial non-therapeutic food products marketed for healthy adult and senior cats were purchased in the USA. Foods were analyzed for their proximate composition. Trace mineral concentrations were measured using inductively coupled argon plasma–optical emission spectroscopy and described on a calculated metabolizable energy basis using standard modified Atwater values. Results Measured iron (median 58.4 mg/1000 kcal [range 15.7–379.0]), copper (median 5.6 mg/1000 kcal [range 0.8–13.3]) and zinc (median 47.6 mg/1000 kcal [range 7.6–128.1]) concentrations were highly variable among cat foods. When all food products – regardless of their nutritional adequacy substantiation method – were compared with the Association of American Feed Control Officials regulatory minimums, 13/112 food products had a mineral deficiency, of which a majority (n = 11/13) were raw food products. Raw foods had significantly lower trace mineral concentrations compared with dry food products and, except for copper, canned food products. Cat foods marketed for senior cats had higher iron ( P = 0.019) and zinc ( P <0.0001) concentrations than foods marketed for adult cats. Foods intended for adult maintenance had higher iron ( P = 0.003) and zinc concentrations than foods intended for all life stages ( P <0.0001). Conclusions and relevance Iron, copper and zinc concentrations in commercial non-therapeutic foods for adult and senior cats are highly variable. A minority of foods – mainly raw food products – were deficient in these minerals. It is unknown if some foods with high trace mineral concentrations could have adverse effects as studies are needed to establish safe upper limits for dietary intake of trace minerals in healthy cats.

A two hundred years record of atmospheric cadmium, copper and zinc concentrations in high altitude snow and ice from the French-Italian Alps

2000 ◽  
Vol 27 (2) ◽  
pp. 249-252 ◽  
Author(s):  
Katja Van de Velde ◽  
Claude F. Boutron ◽  
Christophe P. Ferrari ◽  
Ann-Laure Moreau ◽  
Robert J. Delmas ◽  
...  
Keyword(s):  
High Altitude ◽  
Italian Alps ◽  
Copper And Zinc ◽  
Zinc Concentrations ◽  
Snow And Ice

scholarly journals Assessment of heavy metals in soils of a vineyard region with the use of principal component analysis

2009 ◽  
Vol 66 (3) ◽  
pp. 361-367 ◽  
Author(s):  
Gustavo Souza Valladares ◽  
Otávio Antônio de Camargo ◽  
José Ruy Porto de Carvalho ◽  
Alessandra Maria Cia Silva
Keyword(s):  
Heavy Metals ◽  
Principal Component Analysis ◽  
Agricultural Soils ◽  
Principal Component ◽  
Component Analysis ◽  
Soil Samples ◽  
Metal Concentrations ◽  
Zn Content ◽  
Heavy Metals In Soils ◽  
Cu And Zn

Agricultural management with chemicals may contaminate the soil with heavy metals. The objective of this study was to apply Principal Component Analysis and geoprocessing techniques to identify the origin of the metals Cu, Fe, Mn, Zn, Ni, Pb, Cr and Cd as potential contaminants of agricultural soils. The study was developed in an area of vineyard cultivation in the State of São Paulo, Brazil. Soil samples were collected and GPS located under different uses and coverings. The metal concentrations in the soils were determined using the DTPA method. The Cu and Zn content was considered high in most of the samples, and was larger in the areas cultivated with vineyards that had been under the application of fungicides for several decades. The concentrations of Cu and Zn were correlated. The geoprocessing techniques and the Principal Component Analysis confirmed the enrichment of the soil with Cu and Zn because of the use and management of the vineyards with chemicals in the preceding decades.

The Effect of Synchronous Moulting on Body Copper and Zinc Concentrations in Four Species of Talitrid Amphipods (Crustacea)

1991 ◽  
Vol 71 (2) ◽  
pp. 481-488 ◽  
Author(s):  
J. M. Weeks ◽  
P. G. Moore
Keyword(s):  
Tidal Cycle ◽  
Zinc Content ◽  
Lunar Cycle ◽  
Moult Cycle ◽  
Metal Concentrations ◽  
Total Copper ◽  
Copper And Zinc ◽  
Talitrus Saltator ◽  
Zinc Concentrations ◽  
New Moon

Analysis of the total copper and zinc content of four species of talitrid amphipods, Orchestia gammarellus, O. mediterranea, Talitrus saltator and Talorchestia deshayesii throughout a complete spring/neap tidal cycle failed to reveal any significant effects of moulting upon body copper or zinc in any species. Moulting was synchronized to the lunar cycle only in T. saltator, taking place 5–7 days prior to a new moon. The fact that no significant changes in body metal concentrations took place with the moult cycle is discussed in relation to the use of talitrid amphipods in copper and zinc biomonitoring programmes.

scholarly journals Correlation of microelements like plasma copper and zinc concentrations with female infertility

2017 ◽  
Vol 6 (6) ◽  
pp. 2351
Author(s):  
Ritu Bawa ◽  
Smita Tyagi
Keyword(s):  
Systemic Disease ◽  
Venous Blood ◽  
Unexplained Infertility ◽  
Female Infertility ◽  
Reproductive Age ◽  
Control Group ◽  
Copper And Zinc ◽  
Plasma Copper ◽  
Zinc Concentrations ◽  
The Difference

Background: The aim of present study was to determine the role of trace elements copper and zinc and impairment of infertility.Methods: The study was a randomized, comparative, clinical trial where study group included 74 patients with primary or secondary infertility and control group included 20 patients who were fertile females of reproductive age group having no gynaecological or systemic disease. Venous blood samples were taken and plasma copper and zinc concentrations were measured.Results: In the normal fertile non-pregnant healthy female’s plasma copper ranged from 98.78 - 169.2 mcg% (mean 124.72 mcg%). In patients of unexplained infertility plasma copper was found to be low. It ranged from 63.0 - 145.14 mcg% (mean 95.5 mcg%) difference being statistically significant, (P<0.001). The difference in plasma zinc concentration in both group was not statically significant (P>0.05).Conclusions: Our results show that copper deficiency might have a role to play in the etiogenesis of otherwise unexplained infertility. We can also conclude that zinc deficiency may not play a significant role in female infertility.

Copper and zinc concentrations in serum of healthy Greek adults

2006 ◽  
Vol 359 (1-3) ◽  
pp. 76-81 ◽  
Author(s):  
Eleni Kouremenou-Dona ◽  
Artemis Dona ◽  
John Papoutsis ◽  
Chara Spiliopoulou
Keyword(s):  
Copper And Zinc ◽  
Zinc Concentrations ◽  
Greek Adults

scholarly journals Differences in the Activity of Superoxide Dismutase, Polyphenol Oxidase and Cu-Zn Content in the Fruits of Gordal and Manzanilla Olive Varieties

2002 ◽  
Vol 57 (1-2) ◽  
pp. 113-120 ◽  
Author(s):  
Dámaso Hornero-Méndez ◽  
Lourdes Gallardo-Guerrero ◽  
Manuel Jarén-Galán ◽  
María Isabel Mínguez-Mosquera
Keyword(s):  
Superoxide Dismutase ◽  
Polyphenol Oxidase ◽  
Copper Content ◽  
Redox Balance ◽  
Sod Activity ◽  
Activity Peak ◽  
Olive Variety ◽  
Zn Content ◽  
Olive Varieties ◽  
Cu And Zn

Activity of the enzymes superoxide dismutase (SOD) and polyphenol oxidase (PPO) as well as Cu-Zn content have been monitored during the thirteen weeks growth of both Gordal and Manzanilla olive variety fruits. These metalloenzymes, with Cu and Zn in the prostetic group, are involved in controlling the redox balance in the chloroplast environment. The results indicated that, under similar phenological and environmental conditions, there are periodic peaks of SOD activity in both varieties, followed by fluctuations in the copper content of the fruit. This was interpreted as a common and simultaneous response to situations of oxidative stress, and this response was more intense in the variety Gordal. The enzyme PPO showed an activity peak at start of growth and then practically disappeared. Thus, its activity cannot be correlated with situations of stress or with changes of Cu and Zn in the fruit.

Sign in / Sign up

Export Citation Format

Share Document