Effects of dietary copper on nutrient digestibility, growth performance and plasma copper status in cashmere goats

Zhang, Wei; Wang, Runlian; Kleemann, David O.; De-xun, LU; Zhu, Xiaoping; Zhang, Chunxiang; Zhang, Jia

doi:10.1016/j.smallrumres.2007.06.010

Cited by 29 publications

(18 citation statements)

References 18 publications

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“…In this study, dietary Cu supplementation for growing pigs increased growth rate and feed conversion efficiency. The observations agree with previous studies [21][22][23] using similar supplemental amounts. In addition, feed intake was also enhanced, agreeing with previous studies [3,10,24] which also suggested that Cu supplementation increases feed intake by stimulating appetite.…”

Section: Discussionsupporting

confidence: 93%

High Dietary Copper Increases Catecholamine Concentrations in the Hypothalami and Midbrains of Growing Pigs

Yang

Zhao

Cai

et al. 2015

Biol Trace Elem Res

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The experiment was conducted to investigate the effect of high dietary copper on catecholamine concentration and dopamine-β-hydroxylase (DβH) activity in hypothalami and midbrains of growing pigs. Forty-five crossbred weanling pigs with an average body weight of 7.5 kg were randomly assigned to three groups of 15 each to receive a control diet containing 10 mg/kg Cu (diet A) and diets containing 125 (diet B) or 250 (diet C) mg Cu/kg DM for 45 days. Compared to the control, Cu supplementation at both 125 and 250 mg Cu/kg DM increased average daily gain (ADG), average daily feed intake (ADFI), and feed efficiency. High dietary copper increased midbrain and hypothalami dopamine (DA) and norepinephrine (NE) concentrations and midbrain dopamine-β-hydroxylase activity. However, increasing dietary Cu had no effect on hypothalami dopamine-β-hydroxylase activity.

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Section: Discussionsupporting

confidence: 93%

High Dietary Copper Increases Catecholamine Concentrations in the Hypothalami and Midbrains of Growing Pigs

Yang

Zhao

Cai

et al. 2015

Biol Trace Elem Res

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“…In another study, supplementing goats with 10, 20, and 30 mg Cu/kg DM did not affect the digestibility of DM, CP, and ADF, while NDF digestibility was reduced with the addition of 30 mg Cu/kg DM [10,24,25]. Zhang et al [9] concluded that the digestibility of DM and CP was not affected by Cu supplementation at levels of 10, 20, and 30 mg/kg DM of a basal diet containing 7.38 mg Cu/kg DM consumed by Cashmere goats, but NDF and ADF digestibility was increased by the addition of 10 mg Cu/kg DM intake. The improvement in NDF digestibility could be due to increased ruminal fermentation as a result of Cu supplementation [23], which may be supported by findings that supplementation of basal diets of growing lambs with various concentrations of mineral elements resulted in the increased digestibility of DM and CP [8].…”

Section: Discussionmentioning

confidence: 96%

“…Research on the effects of adding Cu to ruminant diets on the digestibility of nutrients is scarce and, where available, results are contradictory. For example, adding 10, 20, and 30 mg Cu/kg dry matter (DM) to ruminant diets did not affect digestibility of DM, crude protein (CP), and acid detergent fiber (ADF) in Cashmere goats [9,10], while the intra-ruminal administration of boluses containing 8.65 mg Cu/kg DM reduced apparent digestibility of neutral detergent fiber (NDF) and CP in growing heifers [11]. Research to determine the effects of Zn supplementation on digestibility of nutrients is also still limited and inconclusive [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

In Vitro Gas Production and Dry Matter Degradability of Diets Consumed by Goats with or Without Copper and Zinc Supplementation

Vázquez-Armijo

Martínez-Tinajero

López

et al. 2011

Biol Trace Elem Res

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An in vitro gas production technique was used to evaluate the effects of copper and zinc supplementation on the amount and rate of gas production, dry matter degradability (IVDMD), utilization of metabolizable energy (ME), and ruminal fermentation patterns using rumen fluid from four Boer male goats as inoculum. The goats were fed twice daily at 07:00 and 19:00 h a total mixed ration containing 10.3 and 22.5 mg/kg DM of Cu and Zn, respectively. This diet was incubated in vitro for 96 h with four treatments being: control, Cu (21.7), Zn (5.6), and Cu-Zn (21.7 and 5.6) which was provided as a mineral premix. Data were analyzed as a completely randomized design. Rates of gas production (RGP) at 4 (RGP(4h)) and 6 h (RGP(6h)) and gas production (GP) at 24 (GP(24h)) and 48 h (GP(48h)) differed (p < 0.01) among treatments. An addition of Cu increased the RGP(4h), RGP(6h), GP(24h), and GP(48h) (p < 0.0001). The Cu treatment had the highest IVDMD and control the lowest (p < 0.05), and the Cu treatment was the highest values of ME and SCFA. The addition of Cu to the in vitro ruminal fermentation increased gas production and efficiency of energy use.

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“…Serum was collected and stored at-20°C for determination of total protein, albumin, uric acid, calcium and inorganic phosphorus by spectrophotometer (Hitachi, 911). Liver enzymes: AlanineAminoTransferase (ALT), Aspartate Amino Transferase (AST), Gamma-GlutamylTransferase (GGT) and Alkaline Phosphatase (ALP) were measured by Vitros 350 autoanalyser (New York, USA; Product code 680-2153) using their accompanying commercial kits (Vitros Chemistry Products, Ortho-Clinical Diagnostics, JohnsonJohnson Company, New York, USA).Iron (Fe), Zn and Cu were measured (Zhang et al, 2008). Plasma T4 and T3 concentration were determined by Enzymun-Test T4 (Boehinger-Mannheim, Manheim-Germany) and Enzymun-Test T3, ElisaAuto T3 respectively (International Reagents Corporation, Kobe, Japan).…”

Section: Blood Parametersmentioning

confidence: 99%

<b>Evaluation of biochemical parameters and productive performance of japanese quail in response to the replacement of soybean meal with canola meal

Saki

Goudarzi

Ranjbaran

et al. 2017

Acta Sci. Anim. Sci.

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ABSTRACT. The present study was conducted to evaluation the different levels canola meal (CM) replacement by soybean meal (SBM) in Japanese quails diets on productive performance, egg quality trails and blood parameters including blood protein, minerals concentration, liver enzymes and thyroid hormones. In this study, 160 of Japanese quails in second laying phase from 46 to 56 weeks of age were divided in four treatments with four replicates and 10 quail in each per replicate, on a completely randomized design (CRD).Treatments consisted:T1) control (without CM), T2, T3 and T4) replacing 30, 60 and 90% of SBM with CM respectively. The results were shown no significant variation in body weight between treatments in initial and end of the experiment (p > 0.05). There was significant decrease in feed intake by increasing level of CM (p < 0.05). Results indicated that significant increase in egg production, egg weight and egg mass in the T1 (control group) and T2 (contained 10% CM) (p < 0.05). No significant differences were found in egg quality parameters in the all period of experiment (p > 0.05). However, the egg shell thickness showed significantly decreased with increasing levels of canola meal in the diet (p < 0.05). According to this study results, 30% replacement of SBM by CM in the diet (contained 10% CM) has no adverse effect on quail's performance.

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Effects of dietary copper on nutrient digestibility, growth performance and plasma copper status in cashmere goats

Cited by 29 publications

References 18 publications

High Dietary Copper Increases Catecholamine Concentrations in the Hypothalami and Midbrains of Growing Pigs

High Dietary Copper Increases Catecholamine Concentrations in the Hypothalami and Midbrains of Growing Pigs

In Vitro Gas Production and Dry Matter Degradability of Diets Consumed by Goats with or Without Copper and Zinc Supplementation

<b>Evaluation of biochemical parameters and productive performance of japanese quail in response to the replacement of soybean meal with canola meal

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