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Huang F, Wang Q, Wang Z, Lv L, Feng J. Effects of Organic Zinc on the Growth Performance of Weanling Pigs: A Meta-analysis. Biol Trace Elem Res 2024:10.1007/s12011-024-04070-2. [PMID: 38253801 DOI: 10.1007/s12011-024-04070-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 01/15/2024] [Indexed: 01/24/2024]
Abstract
Supplementation of feed with organic zinc (Zn) has long been discussed as an alternative to inorganic Zn in pigs, but its effects on growth performance are mixed. This meta-analysis was conducted to provide a comprehensive evaluation of the influence of organic Zn on the growth performance of weanling pigs, on the basis of average daily gain (ADG), average daily feed intake (ADFI), and feed to gain ratio (F/G). We screened the PubMed and Web of Science databases (published before December 31, 2022; limited to English) systematically and contrasted organic Zn supplementation with inorganic Zn supplementation. There were 680 retrievals of studies, of which 16 (1389 pigs, 37 records) were eligible to analyze. Weighted mean differences (WMDs) and 95% confidence intervals (CIs) were calculated using a random-effects model. The subgroup analysis was classified as organic Zn source (Zn-amino acid (Zn-AA), Zn-glycine (Zn-Gly), Zn-methionine (Zn-Met), Zn-Lysine (Zn-Lys), proteinate complex Zn (Zn-Pro), chitosan-Zn (Zn-CS) or Zn-lactate (Zn-Lac)) and Zn additive dose (low, medium, or high, i.e., lower than, equal to or higher than the requirement of NRC). Organic Zn addition in the weaning phase increased the ADG (P < 0.001) and the ADFI (P = 0.023) and decreased the F/G (P < 0.001). Specifically, for the organic sources, only Zn-CS supplementation presented significant effects on the ADG (P < 0.001), ADFI (P = 0.011), and F/G (P < 0.001). Moreover, medium-dose organic Zn supplementation had positive effects on ADG (P = 0.012), ADFI (P = 0.018), and F/G (P < 0.001). Our results indicate that organic Zn added to diets greatly improves the growth performance of weanling pigs.
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Affiliation(s)
- Feifei Huang
- Key Laboratory of Animal Nutrition and Feed Sciences of Zhejiang Province, College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Qiwen Wang
- Key Laboratory of Animal Nutrition and Feed Sciences of Zhejiang Province, College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Zhonghang Wang
- Key Laboratory of Animal Nutrition and Feed Sciences of Zhejiang Province, College of Animal Science, Zhejiang University, Hangzhou, 310058, China
| | - Liangkang Lv
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jie Feng
- Key Laboratory of Animal Nutrition and Feed Sciences of Zhejiang Province, College of Animal Science, Zhejiang University, Hangzhou, 310058, China.
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Hou P, Li B, Wang Y, Li D, Huang X, Sun W, Liang X, Zhang E. The Effect of Dietary Supplementation with Zinc Amino Acids on Immunity, Antioxidant Capacity, and Gut Microbiota Composition in Calves. Animals (Basel) 2023; 13:ani13091570. [PMID: 37174607 PMCID: PMC10177098 DOI: 10.3390/ani13091570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/02/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
The aim of this study was to investigate the effect of dietary supplementation with zinc (Zn) amino acids at different concentrations on immunity, antioxidant capacity, and gut microbiota composition in calves. Twenty-four one-month-old healthy Angus calves of comparable body weight were randomly divided into three groups (four males and four females in each group) based on the amount of Zn supplementation added to the feed the animals received: group A, 40 mg/kg DM; group B, 80 mg/kg DM; and group C, 120 mg/kg DM. The experiment ended when calves reached three months of age (weaning period). The increase in dietary Zn amino acid content promoted the growth of calves, and the average daily weight gain increased by 36.58% (p < 0.05) in group C compared with group A. With the increase in the content of dietary Zn amino acids, the indexes of serum immune functions initially increased and then decreased; in particular, the content of immunoglobulin M in group A and group B was higher than that in group C (p < 0.05), whereas the content of interleukin-2 in group B was higher than that in the other two groups (p < 0.05). In addition, the content of superoxide dismutase and total antioxidant capacity in the serum of calves in group B was higher than that in group C (p < 0.05), and the MDA level was lower than in group C (p < 0.05). Moreover, alpha diversity in the gut microbiota of calves in group B was higher than that in group A and group C (p < 0.05); the dominant phyla were Firmicutes and Bacteroidota, whereas the dominant genera were Unclassified-Lachnospiraceae and Ruminococcus. Linear discriminant analysis showed that the relative abundance of Bacteroides in the gut microbiota of calves in group B was higher than that in group A, and the relative abundance of Prevotellaceae-UCG-003 was higher compared to that in experimental group C. Thus, dietary supplementation of 80 mg/kg of Zn amino acids to calves could improve the immune function and antioxidant capacity, as well as enrich and regulate the equilibrium of gut microbiota, thus promoting the healthy growth of calves.
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Affiliation(s)
- Pengxia Hou
- College of Animal Science and Technology, Northwest A&F University, Xianyang 712100, China
| | - Bo Li
- College of Animal Science and Technology, Northwest A&F University, Xianyang 712100, China
| | - Yan Wang
- College of Animal Science and Technology, Northwest A&F University, Xianyang 712100, China
| | - Dan Li
- College of Animal Science and Technology, Northwest A&F University, Xianyang 712100, China
| | - Xiaoyu Huang
- College of Animal Science and Technology, Northwest A&F University, Xianyang 712100, China
| | - Wenyang Sun
- Ningxia Academy of Agriculture and Forestry Science, Institute of Animal, Yinchuan 750002, China
| | - Xiaojun Liang
- Ningxia Academy of Agriculture and Forestry Science, Institute of Animal, Yinchuan 750002, China
| | - Enping Zhang
- College of Animal Science and Technology, Northwest A&F University, Xianyang 712100, China
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van Bömmel-Wegmann S, Zentek J, Gehlen H, Barton AK, Paßlack N. Effects of dietary zinc chloride hydroxide and zinc methionine on the immune system and blood profile of healthy adult horses and ponies. Arch Anim Nutr 2023; 77:17-41. [PMID: 36790082 DOI: 10.1080/1745039x.2023.2168993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The effects of dietary zinc on the immune function of equines have not been evaluated in detail so far. In the present study, eight healthy adult ponies and two healthy adult horses were fed a diet supplemented with either zinc chloride hydroxide or zinc methionine in six feeding periods of four weeks each (according to maintenance zinc requirement, 120 mg zinc/kg dry matter, and 240 mg zinc/kg dry matter, for both dietary zinc supplements, respectively). All animals received the six diets, with increasing amounts of zinc chloride hydroxide in the feeding periods 1-3, and with increasing amounts of zinc methionine in the feeding periods 4-6. At the end of each feeding period, blood samples were collected for a blood profile and the measurement of selected immune variables. Increasing dietary zinc chloride hydroxide doses increased the glutathione concentrations in the erythrocyte concentrate and the glutathione peroxidase activity in the erythrocyte lysate, decreased the numbers of total leukocytes and granulocytes in the blood, and also decreased the interleukin-2 concentrations in the plasma of the animals. The dietary supplementation of increasing doses of zinc methionine enhanced the mitogen-stimulated proliferative activity of peripheral blood mononuclear cells, and decreased the glutathione concentrations in the erythrocyte concentrate and the glutathione peroxidase activity in the plasma of the animals. The percentage of blood monocytes with oxidative burst after in vitro stimulation with E. coli decreased with increasing dietary zinc concentrations, independently of the zinc compound used. The blood profile demonstrated effects of the zinc supplements on the red blood cells and the bilirubin metabolism of the horses and ponies, which require further investigation. Overall, high doses of dietary zinc modulate the equine immune system, for the most part also depending on the zinc compound used.
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Affiliation(s)
| | - Jürgen Zentek
- Institute of Animal Nutrition, Freie Universität Berlin, Berlin, Germany
| | - Heidrun Gehlen
- Equine Clinic, Freie Universität Berlin, Berlin, Germany
| | | | - Nadine Paßlack
- Institute of Animal Nutrition, Freie Universität Berlin, Berlin, Germany
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Shurson GC, Urriola PE, Hung YT. Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental Sustainability. Animals (Basel) 2022; 12:ani12233374. [PMID: 36496895 PMCID: PMC9739216 DOI: 10.3390/ani12233374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 11/26/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022] Open
Abstract
The objectives of this review were to summarize current knowledge of Zn in swine nutrition, environmental concerns, potential contribution to antimicrobial resistance, and explore the use of alternative feeding strategies to reduce Zn excretion in manure while capturing improvements in productivity. Zinc is a required nutrient for pigs but is commonly supplemented at concentrations that greatly exceed estimated requirements. Feeding pharmacological concentrations of Zn from ZnO to pigs for 1 to 2 weeks post-weaning reduces post-weaning diarrhea and improves growth performance. Feeding elevated dietary levels of Zn to sows during the last 30 days of gestation can reduce the incidence of low-birth-weight pigs and pre-weaning mortality. Most of the dietary Zn consumed by pigs is not retained in the body and is subsequently excreted in manure, which led several countries to impose regulations restricting dietary Zn concentrations to reduce environmental impacts. Although restricting Zn supplementation in swine diets is a reasonable approach for reducing environmental pollution, it does not allow capturing health and productivity benefits from strategic use of elevated dietary Zn concentrations. Therefore, we propose feeding strategies that allow strategic use of high dietary concentrations of Zn while also reducing Zn excretion in manure compared with current feeding practices.
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Affiliation(s)
- Gerald C. Shurson
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108, USA
- Correspondence:
| | - Pedro E. Urriola
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108, USA
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Complexed trace mineral supplementation alters antioxidant activities and expression in response to trailer stress in yearling horses in training. Sci Rep 2021; 11:7352. [PMID: 33795725 PMCID: PMC8016935 DOI: 10.1038/s41598-021-86478-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/15/2021] [Indexed: 12/04/2022] Open
Abstract
To test the hypothesis that complexed trace mineral supplementation would increase antioxidant capacity and decrease muscle oxidative stress and damage in young horses entering an exercise training program, Quarter Horses (mean \documentclass[12pt]{minimal}
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\begin{document}$$\pm$$\end{document}± SD; 9.7 ± 0.7 mo) balanced by age, sex, and BW were assigned to receive complexed (CTM; n = 8) or inorganic (INORG; n = 8) trace minerals at -12 week relative to this study. Blood and muscle samples were collected before (week 0) and after 12 week of light exercise training surrounding a 1.5-h trailer stressor. Muscle glutathione peroxidase (GPx) activity was higher for CTM than INORG horses (P ≤ 0.0003) throughout the study. Following both trailer stressors, serum creatine kinase increased (P < 0.0001) and remained elevated through 24 h post-trailering (P < 0.0001). At week 0, muscle malondialdehyde, expression of superoxide dismutase 2, and whole blood GPx activity increased (P\documentclass[12pt]{minimal}
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\begin{document}$$\le$$\end{document}≤ 0.003) following trailering but trailering did not affect these measures at week 12. Young horses supplemented with CTM had higher muscle GPx activity than horses receiving INORG, but CTM did not affect damage markers following a stressor. Dietary CTM may be useful for improving antioxidant capacity during exercise training in young equine athletes.
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Jiao Y, Li X, Kim IH. Changes in growth performance, nutrient digestibility, immune blood profiles, fecal microbial and fecal gas emission of growing pigs in response to zinc aspartic acid chelate. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2019; 33:597-604. [PMID: 31480182 PMCID: PMC7054602 DOI: 10.5713/ajas.19.0057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 06/20/2019] [Indexed: 11/27/2022]
Abstract
Objective This study was conducted to investigate the effect of zinc aspartic acid chelate (Zn-ASP) on growth performance, nutrient digestibility, blood profiles, fecal microbial and fecal gas emission in growing pigs. Methods A total of 160 crossbred ([Landrace×Yorkshire]×Duroc) growing pigs with an initial body weight (BW) of 25.56±2.22 kg were used in a 6-wk trial. Pigs were randomly allocated into 1 of 4 treatments according to their sex and BW (8 replicates with 2 gilts and 3 barrows per replication pen). Treatments were as follows: i) CON, basal diet, ii) TRT1, CON+0.1% Zn-ASP, iii) TRT2, CON+0.2% Zn-ASP, and iv) TRT3, CON+0.3% Zn-ASP. Pens were assigned in a randomized complete block design to compensate for known position effects in the experimental facility. Results In the current study, BW, average daily gain, and gain:feed ratio showed significant improvement as dietary Zn-ASP increased (p<0.05) in growing pigs. Apparent total tract digestibility (ATTD) of dry matter was increased linearly (p<0.05) in pigs fed with Zn-ASP diets. A linear effect (p<0.05) was detected for the Zn concentration in blood with the increasing levels of Zn-ASP supplementation. Lactic acid bacteria and coliform bacteria were affected linearly (p<0.05) in pigs fed with Zn-ASP diets. However, no significant differences were observed in the ATTD of nitrogen, energy and Zn. And dietary Zn-ASP supplementation did not affect fecal ammonia, hydrogen sulfide and total mercaptans emissions in growing pigs. Conclusion In conclusion, dietary supplementation with Zn-ASP of diet exerted beneficial effects on the growth performance, nutrient digestibility, blood profiles and fecal microbes in growing pigs.
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Affiliation(s)
- Yang Jiao
- Department of Animal Resource and Science, Dankook University, Cheonan, Chungnam 31116, Korea.,Jiangsu Key Laboratory of Marine Bioresources and Eco-environment, Jiangsu Ocean University, Jiangsu 222005, China
| | - Xinran Li
- Department of Mathematics and Statistics, Huazhong Agricultural University, Wuhan 430070, China
| | - In Ho Kim
- Department of Animal Resource and Science, Dankook University, Cheonan, Chungnam 31116, Korea
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Kumari D, Nair N, Bedwal RS. Morphological changes in spleen after dietary zinc deficiency and supplementation in Wistar rats. Pharmacol Rep 2018; 71:206-217. [PMID: 30785058 DOI: 10.1016/j.pharep.2018.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 10/09/2018] [Accepted: 10/29/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND Study was conducted to determine the effect of dietary zinc deficiency and supplementation on the spleen morphology. METHODS Pre-pubertal Wistar rats (40-50 g) were divided into two groups with 6 sub-groups each viz. zinc control (ZC, 100 μg/g zinc diet), pair fed (PF, 100 μg/g zinc diet), zinc deficient (ZD, <1 μg/g zinc diet, zinc supplementation control (ZCS), zinc supplementation pair-fed (PFS) and zinc supplementation deficient (ZDS, 100 μg/g zinc control diet). Experiments were set for 2- and 4-weeks followed by 4 weeks of zinc supplementation. RESULTS In the present study body weight and BMI decreased significantly along with incidence of splenomegaly as typified by the increased splenic index in deficient groups compared with that of respective control groups. Histopathological changes such as disorganization of red pulp, several infiltered lymphocytes, vacuolization, loss of cellularity, karyolysis, dissolution of matrix, indistinct differentiation between red and white pulp were evident in spleen of 2ZD and 4ZD group animals. Degeneration was more severe after 4 weeks of zinc deficiency as giant cells formation and hypertrophy were also evident. CONCLUSION The findings revealed that zinc deficiency causes growth retardation and splenomegaly. Degenerative and atrophic changes in rat spleen suggest reduced cellular defense potential which will have a direct effect on immunity. Zinc supplementation may prove to be beneficial as there were varying degrees of cellular recovery after cessation of zinc deficiency.
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Affiliation(s)
- Deepa Kumari
- Cell and Molecular Biology Laboratory, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, India.
| | - Neena Nair
- Cell and Molecular Biology Laboratory, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, India.
| | - R S Bedwal
- Cell and Molecular Biology Laboratory, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, India.
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Kim HN, Jeon DG, Lee CY, Jang IS. Effects of dietary lipid-coated zinc on the antioxidant defense system in the small intestine and liver of piglets. Lab Anim Res 2018; 34:65-74. [PMID: 29937913 PMCID: PMC6010399 DOI: 10.5625/lar.2018.34.2.65] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/02/2018] [Accepted: 05/04/2018] [Indexed: 11/21/2022] Open
Abstract
The purpose of the study was to investigate the effects of lipid-coated ZnO (LCZ) and the level of LCZ compared with ordinary zinc oxide (ZnO) on antioxidant defense system in the intestine and liver of piglets. A total of forty piglets (n=8) were fed a diet supplemented with 100 ppm Zn with ZnO (ZnO-1), 2,500 ppm Zn with ZnO (ZnO-2), 100 ppm Zn as LCZ (LCZ-1), 200 ppm Zn as LCZ (LCZ-2), or 400 ppm Zn as LCZ (LCZ-3) for 14-d, respectively. The LCZ-3 group resulted in higher (P<0.05) mRNA expressions and activities of CuZn-superoxide dismutase (SOD), glutathione peroxidase (GPX), catalase (CAT), and glutathione S-transferase (GST) in jejunal mucosa compared with the ZnO-1 and LCZ-1 groups, while no difference was observed in the mRNA level of antioxidant genes between the ZnO-1 and ZnO-2 groups. Within the LCZ groups, the LCZ level linearly and quadratically (P<0.01) increased antioxidant enzymes in the jejunum. The maximum response of jejunal antioxidant enzymes to Zn supplementation was achieved by 400 ppm of LCZ. Hepatic mRNA expression of antioxidant enzymes was unaffected by Zn source and level, while hepatic SOD and GST activities were greater (P<0.05) in the LCZ-3 group than in the ZnO-1 group. No difference was observed in lipid peroxidation of the jejunum and liver and the total antioxidant power of plasma among groups. In conclusion, a supplementation with 400 ppm of LCZ resulted in a maximum increase in antioxidant enzymes, indicating that LCZ may affect antioxidant defense system more profoundly than ZnO.
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Affiliation(s)
- Ha-Na Kim
- Department of Animal Science and Biotechnology, Gyeongnam National University of Science and Technology, Jinju, Korea
| | - Dong-Gyung Jeon
- Department of Animal Science and Biotechnology, Gyeongnam National University of Science and Technology, Jinju, Korea
| | - Chul Young Lee
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju, Korea
- Regional Animal Research Center, Gyeongnam National University of Science and Technology, Jinju, Korea
| | - In-Surk Jang
- Department of Animal Science and Biotechnology, Gyeongnam National University of Science and Technology, Jinju, Korea
- Regional Animal Research Center, Gyeongnam National University of Science and Technology, Jinju, Korea
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