1
|
Crites BR, Carr SN, Matthews JC, Bridges PJ. Form of dietary selenium affects mRNA encoding cholesterol biosynthesis and immune response elements in the early luteal phase bovine corpus luteum. J Anim Sci 2022; 100:6620782. [PMID: 35772747 DOI: 10.1093/jas/skac135] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/11/2022] [Indexed: 12/15/2022] Open
Abstract
Widespread regions of the southeast United States have soils, and hence forages, deficient in selenium (Se), necessitating Se supplementation to grazing cattle for optimal immune function, growth, and fertility. We have reported that supplementation with an isomolar 1:1 mix (MIX) of inorganic (ISe) and organic (OSe) forms of Se increases early luteal phase (LP) progesterone (P4) above that in cows on ISe alone. Increased early LP P4 advances embryonic development. Our objective was to determine the effect of form of Se on the transcriptome of the early LP corpus luteum (CL) with the goal of elucidating form of Se-regulated processes affecting luteal steroidogenesis and function. Non-lactating, 3-yr-old Angus-cross cows underwent 45-d Se-depletion, then repletion periods, and then at least 90 d of supplementation (TRT) with 35 ppm Se/d as either ISe (n = 5) or MIX (n = 5). CL were then recovered on day 7 of the estrous cycle, total RNA isolated, and the effect of TRT on the luteal transcriptome evaluated using bovine gene 1.0 ST arrays (Affymetrix, Inc., Santa Clara, CA). The abundance of transcripts in each CL was subjected to one-way ANOVA using Partek Genomic Suite software to determine TRT effects. Microarray analysis indicated a total of 887 transcripts that were differentially expressed and functionally annotated, with 423 and 464 up- and down-regulated (P < 0.05) in MIX vs. ISe CL, respectively. Bioinformatic analysis (Ingenuity Pathway Analysis) revealed the top TRT-affected canonical pathways to include seven specific to cholesterol biosynthesis and two to inflammatory responses. Results from the microarray analysis were corroborated by targeted real-time PCR. MIX CL had increased (P < 0.05) abundance of transcripts regulating cholesterol biosynthesis including DHCR7, DHCR24, and CYP51A1 (fold changes of 1.65, 1.48, and 1.40, respectively), suggesting MIX-induced increases in P4 to be due, in part, to increased availability of substrate to luteal cells. In addition, MIX CL had increased (P < 0.05) abundance of immune-response transcripts including C1QC, FAS, ILR8B, and IL1R1 (fold changes of 2.30, 1.74, 1.66, and 1.63, respectively). SREBF1 mRNA was also increased (1.32-fold, P < 0.05) in the MIX CL, which increases cholesterol synthesis and stimulates IL1B, linking effects of form of supplemental Se (TRT) on cholesterol biosynthesis and immune function in the CL.
Collapse
Affiliation(s)
- Benjamin R Crites
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, USA
| | - Sarah N Carr
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, USA
| | - James C Matthews
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, USA
| | - Phillip J Bridges
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, USA
| |
Collapse
|
2
|
Adeniyi M, Agoreyo F, Olorunnisola O, Olaniyan O, Seriki S, Ozolua P, Odetola A. Photo-pollution disrupts reproductive homeostasis in female rats: The duration-dependent role of selenium administrations. CHINESE J PHYSIOL 2020; 63:235-243. [DOI: 10.4103/cjp.cjp_52_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
3
|
Kamada H, Akagi S, Watanabe S. Astaxanthin increases progesterone production in cultured bovine luteal cells. J Vet Med Sci 2017; 79:1103-1109. [PMID: 28442639 PMCID: PMC5487791 DOI: 10.1292/jvms.17-0044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Although astaxanthin (AST) is known to be a strong antioxidant, its effects on
reproductive function in domestic animals have not yet been elucidated in detail.
Therefore, we investigated the effects of AST on luteal cells, which produce progesterone
(P4), an important hormone for maintaining pregnancy. Luteal cells were prepared by
collagenase dispersion of the corpus luteum (CL). The addition of racemic AST at a low
concentration (<10 nM) to cultured bovine luteal cells increased P4 in the culture
medium (P<0.05). This effect was attributed to an increase in the
ability of luteal cells to produce P4 (P4/cell·DNA); however, the level of lipid peroxide
(TBARS: thiobarbituric acid reactive substances) per cell did not decrease with the
addition of AST, whose values were similar to that with the addition of luteinizing
hormone. When optical isomers of AST (SS and RR types) were added to the culture medium,
respectively, SS-AST was more effective in increasing P4 production than RR-AST. When 1
mg/kg·body weight of SS-AST derived from green algae was fed to cows for 2 weeks, its
concentration in blood plasma was 10.9 nM on average, which was sufficient to expect an
in vitro effect on the production of P4 in cows. These results
suggested the potential of SS-AST supplements for cows to elevate luteal function.
Collapse
Affiliation(s)
- Hachiro Kamada
- Institute of Livestock and Grassland Science, NARO, Ikenodai-2, Tsukuba, Ibaraki 305-0901, Japan
| | - Satoshi Akagi
- Institute of Livestock and Grassland Science, NARO, Ikenodai-2, Tsukuba, Ibaraki 305-0901, Japan
| | - Shinya Watanabe
- Institute of Livestock and Grassland Science, NARO, Ikenodai-2, Tsukuba, Ibaraki 305-0901, Japan
| |
Collapse
|
4
|
Kamada H. Effects of selenium-rich yeast supplementation on the plasma progesterone levels of postpartum dairy cows. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2017; 30:347-354. [PMID: 27492347 PMCID: PMC5337913 DOI: 10.5713/ajas.16.0372] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 07/03/2016] [Accepted: 08/03/2016] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The effects of the pre- and postpartum supplementation of cows with Se on their plasma P4 concentrations after calving were investigated. METHODS Thirty-four Holstein cows were used to investigate the effects of dietary selenium supplementation on the postpartum recovery of the luteal function in cows. Selenium-rich yeast (containing 300 ppm selenium) was mixed with total mixed ration fed to 17 pregnant cows from 30 days before they were due to calve (10 g yeast daily) to 100 days after calving (20 g yeast daily). The control cows (n = 17) were fed the same amount of ordinary yeast. The cows' plasma progesterone concentrations were determined every two days using an enzyme immunoassay after calving. RESULTS Feed intake (total digestive nutrient, crude protein), milk production, body weight and the biochemical properties of blood plasma did not differ between the two groups; however, the plasma selenium concentrations of the supplemented animals were significantly greater than those of the controls at and after calving. The postpartum plasma progesterone concentrations of the selenium-yeast-supplemented group increased earlier than those of the control group. Moreover, during the estrus cycle after the 3rd ovulation or ovulation with estrus between 60 to 80 days after calving, the selenium-supplemented cows exhibited greater progesterone concentrations than the control cows. CONCLUSION Selenium supplementation promotes the postpartum progesterone production of cows.
Collapse
Affiliation(s)
- Hachiro Kamada
- Dairy cattle Group, Hokkaido Agricultural Research Center NARO, Sapporo, Hokkaido 062-8555,
Japan
- Animal Reproduction Unit, Institute of Livestock and Grassland Science NARO, Tsukuba, Ibaraki 305-0901,
Japan
| |
Collapse
|
5
|
Cerny KL, Anderson L, Burris WR, Rhoads M, Matthews JC, Bridges PJ. Form of supplemental selenium fed to cycling cows affects systemic concentrations of progesterone but not those of estradiol. Theriogenology 2015; 85:800-806. [PMID: 26559468 DOI: 10.1016/j.theriogenology.2015.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/09/2015] [Accepted: 10/12/2015] [Indexed: 01/28/2023]
Abstract
In areas where soils are deficient in selenium (Se), dietary supplementation of this trace mineral directly to cattle is recommended. Selenium status affects fertility, and the form of Se supplemented to cows affects tissue-specific gene expression profiles. The objective of this study was to determine whether the form of Se consumed by cows would affect follicular growth and the production of steroids. Thirty-three Angus-cross cows that had ad libitum access of a mineral mix containing 35 ppm of Se in free-choice vitamin-mineral mixes as either inorganic (ISe), organic (OSe), or a 50/50 mix of ISe and OSe (MIX) for 180 days were used. After 170 days of supplementation, all cows were injected with 25-mg PGF2α to induce regression of the CL and then monitored for behavioral estrus (Day 0). From Day 4 to Day 8 after estrus, follicular growth was determined by transrectal ultrasonography. On Day 6, cows were injected with PGF2α (20 then 15 mg, 8-12 hours apart) to induce regression of the developing CL and differentiation of the dominant follicle of the first follicular wave into a preovulatory follicle. On Day 8, 36 hours after PGF2α (20 mg), the contents of the preovulatory follicle were aspirated by ultrasound-guided follicular puncture. Blood collected on Days 6 and 8 and follicular fluid collected on Day 8 was analyzed for concentrations of progesterone and estradiol. Form of Se supplemented to cows affected (P = 0.04) the systemic concentration of progesterone on Day 6, but not on Day 8. Form of Se did not affect the systemic concentration of estradiol on Day 6 or Day 8. Form of Se tended to affect (P = 0.07) the concentration of progesterone, but not that of estradiol, in the follicular fluid. Form of Se did not affect diameter of the dominant ovarian follicle on Days 4 to 6, but tended to affect (P = 0.08) the diameter of the preovulatory follicle on Day 8. Our results suggest that form of Se fed to cows affects the production of progesterone but not that of estradiol. Further investigation of organic Se-induced increases in progesterone and potentially the effects of increased progesterone on the establishment of pregnancy, especially in cows of lower fertility, is warranted.
Collapse
Affiliation(s)
- Katheryn L Cerny
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Les Anderson
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Walter R Burris
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Michelle Rhoads
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - James C Matthews
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Phillip J Bridges
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky, USA.
| |
Collapse
|
6
|
Rezvanfar MA, Saeedi S, Mansoori P, Saadat S, Goosheh M, Shojaei Saadi HA, Baeeri M, Abdollahi M. Dual targeting of TNF-α and free radical toxic stress as a promising strategy to manage experimental polycystic ovary. PHARMACEUTICAL BIOLOGY 2015; 54:80-90. [PMID: 25955958 DOI: 10.3109/13880209.2015.1014922] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT It is now clear that oxidative stress (OS) and chronic low-grade inflammation are two main pathways involved in polycystic ovary syndrome (PCOS) pathogenesis. Therefore, simultaneous targeting of these pathways by means of carvedilol and Semelil (ANGIPARS™), as established medicines with dual anti-cytokine and anti-oxidant potential may be a therapeutic alternative approach to the current treatments. OBJECTIVE The objective of this study is to study the protective effects of carvedilol and ANGIPARS™ on inflammatory and oxidative response in hyperandrogenism-induced polycystic ovary (PCO). MATERIALS AND METHODS The murine model of PCO was induced by letrozole (1 mg/kg/d; orally) and effective doses of carvedilol (10 mg/kg/d; orally) and ANGIPARS™ (2.1 mg/kg/d; orally) were administrated for 21 d in PCO and non-PCO healthy rats. Ovarian folliculogenesis, sex hormones concentrations, OS, inflammatory, and metabolic biomarkers were assessed in serum and ovaries. RESULTS PCO rats exhibited ovarian cystogenesis which was preserved by the application of carvedilol and ANGIPARS™. In comparison with controls, decreased level of the total antioxidant power (TAP) and higher levels of reactive oxygen species (ROS) and lipid peroxidation (LPO) in serum and ovaries (2.41 ± 0.67 versus 0.72 ± 0.11; and 0.17 ± 0.04 versus 0.05 ± 0.01; 5.48 ± 1.30 versus 10.56 ± 0.77; and 7.06 ± 1.94 versus 17.98 ± 0.98; p < 0.05, respectively) were detected in PCO rats. Moreover, the PCO rats exhibited hyperandrogenism due to a 3.7-fold increase in serum testosterone concentration (35.04 ± 3.17 versus 131.09 ± 13.24; p < 0.05) along with a 2.98-fold decrease in serum progesterone (6.19 ± 0.40 versus 18.50 ± 1.03; p < 0.05) and 5.2-fold decrease in serum estradiol (9.30 ± 0.61 versus 48.3 ± 2.10; p < 0.05) when compared with those of the control group. However, similar to the control group, normal levels of OS markers and sex hormones were detected in ANGIPARS™ and carvedilol co-treated PCO rats. Besides, when compared with controls, increased levels of TNF-α (770.75 ± 42.06 versus 477.14 ± 28.77; p < 0.05) and insulin (1.27 ± 0.10 versus 0.36 ± 0.05; p < 0.05) in PCO rats were significantly inhibited by carvedilol and ANGIPARS™ co-treatment. DISCUSSION AND CONCLUSION We evidenced the beneficial effects of carvedilol and ANGIPARS™ in PCO, which underpin the new alternative approach in using these kinds of medicines in female reproductive disorders.
Collapse
Affiliation(s)
- Mohammad Amin Rezvanfar
- a Division of Toxicology, Department of Toxicology and Pharmacology, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
- b Pharmaceutical Sciences Research Center , Tehran University of Medical Sciences , Tehran , Iran
| | - Sarah Saeedi
- c Pharmaceutical Sciences Branch , Azad University , Tehran , Iran
| | - Parisa Mansoori
- c Pharmaceutical Sciences Branch , Azad University , Tehran , Iran
| | - Sepideh Saadat
- c Pharmaceutical Sciences Branch , Azad University , Tehran , Iran
| | - Maziar Goosheh
- d Faculty of Medicine , Tehran University of Medical Sciences , Tehran , Iran , and
| | - Habib A Shojaei Saadi
- e Centre de Recherche en Biologie de la Reproduction , UniversitéLaval , Québec City , QC , Canada
| | - Maryam Baeeri
- b Pharmaceutical Sciences Research Center , Tehran University of Medical Sciences , Tehran , Iran
| | - Mohammad Abdollahi
- a Division of Toxicology, Department of Toxicology and Pharmacology, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
- b Pharmaceutical Sciences Research Center , Tehran University of Medical Sciences , Tehran , Iran
| |
Collapse
|
7
|
Sumarmi S, Wirjatmadi B, . K, Gumilar E, Adriani M, Retnowati E. Micronutrients Supplementation during Preconception Period Improves Fetal Survival and Cord Blood Insulin-Like Growth Factor 1. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/ajcn.2015.33.44] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
8
|
Kamada H, Nonaka I, Takenouchi N, Amari M. Effects of selenium supplementation on plasma progesterone concentrations in pregnant heifers. Anim Sci J 2013; 85:241-6. [PMID: 24206213 DOI: 10.1111/asj.12139] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 07/26/2013] [Indexed: 11/26/2022]
Abstract
It is known that selenium (Se) has various functions in animals. Many investigations on the biochemical and physiological effects of Se have been previously reported; however, the detailed function of Se in reproduction is not yet clear. We proposed the possibility that Se plays a notable role in progesterone production. The aim of this study was to clarify the effects of Se supplementation on progesterone levels of pregnant Holstein heifers. Eight Holstein heifers (-Se) were fed basal diet (containing 0.022 ppm of Se) throughout the experiment. While a 0.3 ppm diet of Se (sodium selenite) was fed to another seven animals (+Se) with basal diet. Blood sampling was carried out every week. Plasma Se concentrations were higher in Se-supplemented cows compared with controls (-Se) (P < 0.01) throughout the experiment. Se supplementation increased plasma progesterone in the 29-39 weeks of pregnancy from 4.98 ± 0.64 to 6.86 ± 0.49 ng/mL on average (P < 0.05). The present findings suggest that Se contributes to maintaining the function of the corpus luteum and/or placenta in the latter period of pregnancy.
Collapse
Affiliation(s)
- Hachiro Kamada
- NARO Institute of Livestock and Grassland Science, Tsukuba, Japan
| | | | | | | |
Collapse
|
9
|
Rezvanfar M, Rezvanfar M, Ahmadi A, Shojaei-Saadi H, Baeeri M, Abdollahi M. Molecular mechanisms of a novel selenium-based complementary medicine which confers protection against hyperandrogenism-induced polycystic ovary. Theriogenology 2012; 78:620-31. [DOI: 10.1016/j.theriogenology.2012.03.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 03/07/2012] [Accepted: 03/07/2012] [Indexed: 12/27/2022]
|
10
|
Sánchez J, Jiménez A, Regodón S, Andrés S. Inhibitory effect of selenium supplementation on the reproductive performance in synchronized Merino sheep at range conditions in a selenium-deficient area. Reprod Domest Anim 2008; 43:328-332. [PMID: 18226023 DOI: 10.1111/j.1439-0531.2007.00904.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The effect of selenium (Se) supplementation on the reproductive performance of Merino ewes mated out of the normal breeding season was studied in a 2 (no Se supplementation vs Se supplementation) x 2 (ewes mated at natural oestrus vs synchronized oestrus) factorial design with 50 ewes per treatment combination. Synchronization of oestrus was achieved by intravaginal insertion of 40 mg cronolone sponges for 14 days and administration of 440 IU PMSG at sponge withdrawal. Se supplementation was by the addition to the concentrate with 0.5 mg/kg of Se in the form of selenomethionin, for the 3 months prior to the mating and during gestation. Ewes were kept under range conditions in south-west Spain, and exposed to Merino rams at a female: male ratio of 4 : 1 from 2 days following sponge withdrawal, or the equivalent time, for 21 days. Se supplementation alone did not improve significantly ewe fertility or lamb birth weight, but there was a positive effect of synchronizing ewes mated out of the breeding season as more of these ewes lambed and produced more lambs than those not synchronized. However, a strong interaction was found between synchronization and Se supplementation, causing a deleterious effect on the reproductive performance of ewes. This negative effect, presumably related to high embrionary mortality caused by Se toxicity, should be taken into account for oestrus synchronizing in Se-deficient areas. The supplementation with Se, for the prevention of nutritional myodystrophy degeneration in lambs, should be conducted in a fashion which does not generate high levels of Se in the ewes around the mating period.
Collapse
Affiliation(s)
- J Sánchez
- Animal Medicine Department, Faculty of Veterinary Science, University of Extremadura, Cáceres, Spain
| | - A Jiménez
- Animal Medicine Department, Faculty of Veterinary Science, University of Extremadura, Cáceres, Spain
| | - S Regodón
- Animal Medicine Department, Faculty of Veterinary Science, University of Extremadura, Cáceres, Spain
| | - S Andrés
- Animal Medicine Department, Faculty of Veterinary Science, University of Extremadura, Cáceres, Spain
| |
Collapse
|
11
|
Kamada H, Nonaka I, Ueda Y, Murai M. Selenium Addition to Colostrum Increases Immunoglobulin G Absorption by Newborn Calves. J Dairy Sci 2007; 90:5665-70. [DOI: 10.3168/jds.2007-0348] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
12
|
Zagrodzki P, Ratajczak R, Wietecha-Posłuszny R. The interaction between selenium status, sex hormones, and thyroid metabolism in adolescent girls in the luteal phase of their menstrual cycle. Biol Trace Elem Res 2007; 120:51-60. [PMID: 17916955 DOI: 10.1007/s12011-007-8012-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2007] [Revised: 11/30/1999] [Accepted: 06/26/2007] [Indexed: 10/23/2022]
Abstract
The objective of the present work was to study all physiological relationships among selenium status (SeS), sex hormones secretion (SH), and thyroid metabolism (ThM) in healthy adolescent girls, at one time. Forty-four girls aged 13.4-16.6 years (mean age, 14.5 +/- 0.5 years) entered the statistical model. Parameters reflecting SeS: plasma selenium concentration (Se) and plasma glutathione peroxidase activity (GPX3); SH: serum estradiol (E2) and progesterone (P4); age of menarche (AoM); and ThM: thyroid stimulating hormone (TSH), free thyroxine (fT4), free triiodothyronine (fT3), antithyroid peroxidase antibodies (anti-TPO) in serum, and thyroid volume (ThV), were determined, and the interactions between them were evaluated by means of the partial least squares method (PLS). PLS method was, for the first time, successfully applied to the problem of selenium and hormone interactions and revealed that selenium status and female reproductive system are interrelated and affect thyroid physiology in adolescent girls in the luteal phase. The strongest associations were revealed for the pairs of parameters, Se and fT4/fT3, Se and P4, the modest ones for the pairs, Se and ThV, P4 and fT4/fT3, Se and AoM, and P4 and AoM. There was no correlation between E2, GPX3, and TSH, and any other considered parameter. Se and P4 had the greatest influence on ThM parameters.
Collapse
Affiliation(s)
- Paweł Zagrodzki
- Department of Food Chemistry and Nutrition, Medical College, Jagiellonian University, Kraków, Poland.
| | | | | |
Collapse
|
13
|
Enjalbert F, Lebreton P, Salat O. Effects of copper, zinc and selenium status on performance and health in commercial dairy and beef herds: retrospective study. J Anim Physiol Anim Nutr (Berl) 2006; 90:459-66. [PMID: 17083426 DOI: 10.1111/j.1439-0396.2006.00627.x] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A retrospective study using analysis of plasma copper and zinc, and erythrocyte glutathione peroxidase from 2 080 dairy and beef cow herds was conducted to evaluate the relationship between trace-element status and production, reproduction and health in cows and their calves. Classification of the herd status as deficient, marginal, low-adequate or high-adequate was based on the lower tercile of individual values. Odds ratios for each disorder in herds were calculated by multivariable stepwise logistic regression. Inadequate copper status was not associated with adult disorders, but was an important risk factor for poor calf performance or health. Selenium deficient status was associated with most studied disorders in cows, and both deficient and marginal herd status were strongly associated with poor health of calves, particularly with increased risks of myopathy and infectious diseases. Zinc insufficiency was strongly associated with low milk production and impaired locomotion in dairy herds, and was also associated with diarrhoea and poor growth in calves. Because a low-adequate status increased the risk of many disorders in adults and calves, we propose to classify herds as deficient and marginal when the lower terciles of plasma zinc concentration are below 12 and between 12 and 14 mumol/l respectively.
Collapse
Affiliation(s)
- F Enjalbert
- Ecole Nationale Vétérinaire, Unité de Nutrition, Toulouse Cedex 3, France.
| | | | | |
Collapse
|