Effect of Supplementation of Trace Mineral and Vitamins During Transition Phase on Energy Status, Productive and Reproductive Performance of Deoni Heifers

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Total Pages : 93 pages
Book Rating : 4.:/5 (929 download)

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Book Synopsis Effect of Supplementation of Trace Mineral and Vitamins During Transition Phase on Energy Status, Productive and Reproductive Performance of Deoni Heifers by :

Download or read book Effect of Supplementation of Trace Mineral and Vitamins During Transition Phase on Energy Status, Productive and Reproductive Performance of Deoni Heifers written by and published by . This book was released on 2015 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Pre- and Postpartum Trace Mineral Supplementation

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ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (83 download)

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Book Synopsis Pre- and Postpartum Trace Mineral Supplementation by : Danny Kay Lovingier

Download or read book Pre- and Postpartum Trace Mineral Supplementation written by Danny Kay Lovingier and published by . This book was released on 1977 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effects of Prenatal Energy Supplementation and Prenatal Ans Prebreeding Trace Mineral/vitamin E Supplementation on Calf Health and Reproductive Performance on Beef Cows

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ISBN 13 :
Total Pages : 238 pages
Book Rating : 4.:/5 (525 download)

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Book Synopsis Effects of Prenatal Energy Supplementation and Prenatal Ans Prebreeding Trace Mineral/vitamin E Supplementation on Calf Health and Reproductive Performance on Beef Cows by : Sarah Ruth Daugherty

Download or read book Effects of Prenatal Energy Supplementation and Prenatal Ans Prebreeding Trace Mineral/vitamin E Supplementation on Calf Health and Reproductive Performance on Beef Cows written by Sarah Ruth Daugherty and published by . This book was released on 2002 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effect of Trace Mineral Form in Supplements on First-calf Heifer Status, Immunity, Reproduction and Calf Performance

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Total Pages : 234 pages
Book Rating : 4.:/5 (42 download)

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Book Synopsis Effect of Trace Mineral Form in Supplements on First-calf Heifer Status, Immunity, Reproduction and Calf Performance by : Connie Kay Swenson

Download or read book Effect of Trace Mineral Form in Supplements on First-calf Heifer Status, Immunity, Reproduction and Calf Performance written by Connie Kay Swenson and published by . This book was released on 1999 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effect of a Trace Mineral Injection on Beef Cattle Performance

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ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (994 download)

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Book Synopsis Effect of a Trace Mineral Injection on Beef Cattle Performance by : Carmen J. Brasche

Download or read book Effect of a Trace Mineral Injection on Beef Cattle Performance written by Carmen J. Brasche and published by . This book was released on 2015 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adequate trace mineral status is important in beef cow/calf and replacement heifer systems because trace minerals play vital roles in reproduction, immunity and growth. Many experiments have investigated the use of a trace mineral injection containing Cu, Mn, Se and Zn (TMI) on growth and immunity of beef cattle. However, very few have investigated TMI use on reproductive performance. Therefore, five experiments, a two year cow/calf experiment, and four replacement heifer experiments were designed to investigate the use of a TMI on reproductive performance of cows and heifers, calf growth and trace mineral status of cows, heifers, and calves. The use of the TMI at pre-calving and pre-breeding did not consistently improve reproductive performance of heifers and cows with good trace mineral statuses that were receiving supplemental trace minerals. There were no differences (P ≥ 0.36) in the AI pregnancy rate [48 and 38% control (CON) vs 44 and 39% TMI, year 1 and year 2, respectively] or overall pregnancy rate (93 and 93 % CON vs 93 and 90% TMI, year 1 and year 2, respectively) of cows receiving a TMI when compared to control cows during the two year trial. In experiment 1 beef heifers (Angus ́Hereford ́Simmental) were bred to fixed time AI, TMI heifers had increased overall pregnancy rates (83 vs 92%, CON vs TMI, respectively; P = 0.02). In experiment 2 beef heifers were AI bred to synchronization response, TMI had no effect (78 vs 83%, CON vs TMI, respectively, P = 0.46). Conception rates to AI and overall pregnancy were not affected by TMI use in two experiments using Black Angus beef heifers being developed in a dry lot fed adequate trace minerals in a total mixed ration. Growth of suckling calves measured as birth weight, average daily gain, actual weaning weight, and 205 d adjusted weight were not influenced by TMI. However, trace mineral status of all groups of cattle were increased with use of TMI. In heifers liver Cu and Se were increased (P

Trace Mineral Interaction on Reproductive Performance of Beef Cattle Under Range Conditions in Edwards and McCulloch Counties, Texas

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ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.:/5 (219 download)

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Book Synopsis Trace Mineral Interaction on Reproductive Performance of Beef Cattle Under Range Conditions in Edwards and McCulloch Counties, Texas by : John Conan Doyle

Download or read book Trace Mineral Interaction on Reproductive Performance of Beef Cattle Under Range Conditions in Edwards and McCulloch Counties, Texas written by John Conan Doyle and published by . This book was released on 1989 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Trace Mineral Supplementation in Cattle: Implications in Heifer Development, Reproductive Performance, and Fetal Programming

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (18 download)

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Book Synopsis Trace Mineral Supplementation in Cattle: Implications in Heifer Development, Reproductive Performance, and Fetal Programming by : Rebecca Sue Stokes

Download or read book Trace Mineral Supplementation in Cattle: Implications in Heifer Development, Reproductive Performance, and Fetal Programming written by Rebecca Sue Stokes and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effect of Supplemental Trace Mineral (zinc, Copper, and Manganese) Source on Growth Performance, Morbidity, and Trace Mineral Status in Beef Cattle

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ISBN 13 : 9781321102338
Total Pages : 152 pages
Book Rating : 4.1/5 (23 download)

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Book Synopsis Effect of Supplemental Trace Mineral (zinc, Copper, and Manganese) Source on Growth Performance, Morbidity, and Trace Mineral Status in Beef Cattle by : Anthony W. Ryan

Download or read book Effect of Supplemental Trace Mineral (zinc, Copper, and Manganese) Source on Growth Performance, Morbidity, and Trace Mineral Status in Beef Cattle written by Anthony W. Ryan and published by . This book was released on 2014 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of studies were conducted to determine the effect of supplemental trace mineral source on growth performance, morbidity, and trace mineral status in growing beef cattle. The first experiment evaluated supplemental trace minerals from sulfate, organic, or hydroxy sources on growth performance and morbidity. Crossbreed beef calves were assigned to 1 of 3 treatments consisting of supplemental zinc (360 mg/d), copper (125 mg/d), and manganese (200 mg/d) from inorganic, organic, or hydroxy sources fed daily over a 42 to 45-d backgrounding phase. After removal of chronic and dead calves from the data set, trace mineral source had no effect on final or intermediate weights (P > 0.55) or average daily gain (P = 0.51). For all calves, dietary treatments had no effect on any morbidity measurements (P ≥ 0.53). Overall, trace mineral source had no effect on total weight gain, average daily gain, or morbidity during the receiving phase in shipping stressed cattle. A second experiment was conducted to study the effect of trace mineral source on trace mineral status, superoxide dismutase activity, and performance in beef heifers fed diets high in sulfur. Crossbreed heifers were stratified into 3 treatments consisting of 1) no supplemental trace minerals; 2) supplemental copper (55 mg/d), zinc (165 mg/d), and manganese (110 mg/d) from sulfate sources; or 3) supplemental zinc, copper, and manganese at isolevels to treatment 2 from hydroxy sources fed daily over a 55-d trial. Final and intermediate weights (P = 0.73), average daily gain (P = 0.70), and plasma copper and zinc concentrations (P ≥ 0.37) were not affected by treatment. Liver copper concentrations on d 55 were greater for the sulfate treatment (P > 0.004) compared to control and hydroxy treatments, however, liver zinc concentrations were not affected (P > 0.29). Treatment had no effect on ( P ≥ 0.36) on total- or manganese-superoxide dismutase activity, however, a day effect (P ≥ 0.002) was observed. Overall, trace mineral source had no effect on growth performance, plasma mineral concentration, liver zinc concentrations, or superoxide dismutase activity. However, liver copper concentrations on d 55 were affected by trace mineral source.

Effect of Mineral Supplementation on Reproductive Efficiency of Beef Cows

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ISBN 13 :
Total Pages : 71 pages
Book Rating : 4.:/5 (112 download)

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Book Synopsis Effect of Mineral Supplementation on Reproductive Efficiency of Beef Cows by : Felipe Guirado Dantas

Download or read book Effect of Mineral Supplementation on Reproductive Efficiency of Beef Cows written by Felipe Guirado Dantas and published by . This book was released on 2018 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reproductive efficiency is the major component for an economically efficient cow/calf operation and can be influenced by a number of factors such as breed, age, health and nutrition. Among the components of the diet, trace minerals are hypothesized to have a major impact reproductive efficiency in beef cattle. In order to test this specific hypothesis, a study directly evaluating the success of reproductive performance in cows fed complexed trace minerals versus inorganic trace mineral was designed. In this study, 68 cows where equally divided into treatment (cows fed with complexed trace minerals) and control (cows fed with inorganic trace minerals) groups. The cows started being fed 30 days prior to AI (d -30). Twenty-eight days after AI (d 28), all cows where diagnosed for pregnancy and non-pregnant cows where removed from the experiment. Twenty-four days after pregnancy diagnosis (d 52), pregnant cows where submitted to ovum pick-up (OPU) and a second OPU was performed on d 67. Although pregnancy rates did not differ (P = 0.33) between treatment and control, cows fed with complexed trace minerals had increased oocyte recovery (P = 0.03), in vitro embryo production (P = 0.06) and more efficient in vitro embryo production (P = 0.06). In summary, the results from this experiment demonstrated that supplementation of beef cows with a complexed source of trace minerals improves reproductive efficiency when compared to cows fed inorganic source of trace minerals.

The Role of Trace Minerals in Beef Cattle Fertility

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ISBN 13 : 9780438880214
Total Pages : pages
Book Rating : 4.8/5 (82 download)

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Book Synopsis The Role of Trace Minerals in Beef Cattle Fertility by : Cole R. Ratzburg

Download or read book The Role of Trace Minerals in Beef Cattle Fertility written by Cole R. Ratzburg and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The most important economic factor influenced by trace mineral deficiencies is impaired reproductive performance in both the male and female. Copper (Cu), Zinc (Zn), and Manganese (Mn) have been shown to improve fertility in male and female beef cattle due to their roles in vitamin synthesis, hormone production, enzyme activity, collagen formation, tissue synthesis, oxygen transport, energy production, and other physiological processes related to growth, reproduction and health. A new form of trace minerals called hydroxy minerals, which is a hydrolyzed inorganic metal complex, has been shown to have a greater bioavailability than sulfate minerals and similar bioavailability compared to the organic trace minerals. The idea that hydroxy trace minerals could be more available to beef cattle led us to hypothesize that use of hydroxy forms of Cu, Zn, and Mn could improve fertility in male and female beef cattle that are transitioning into the pubertal phase. The objectives of the two studies were to determine if the use of hydroxy trace minerals could improve fertility parameters related to both the male and female beef cow. Peripubertal bulls were supplemented with hydroxy forms of Cu or Zn or Cu and Zn or no Cu and Zn in an 83-day mineral trial to determine if there were differences in liver, blood plasma, and semen mineral concentrations and subsequently breeding soundness exam (BSE) parameters, sperm morphology, and flow cytometer analysis. Results showed the use of Cu and Zn had benefits for fertility as there was improvements in flow cytometer parameters and sperm morphology. Heifers were supplemented with sulfate and hydroxy forms of Cu, Zn, and Mn to determine if the different forms of trace minerals could affect feed intake parameters such as average daily gain, dry matter intake, residual feed intake, and feed to gain ratio and the fertility parameters: percent cycling and percent conception. Results indicated that there were no differences in feed intake parameters between treatments, but there was a positive benefit observed with the hydroxy trace minerals on conception percentage.

Effect of Chelated Trace Mineral Supplements on Growth and Reproductive Performance of Cattle

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Total Pages : pages
Book Rating : 4.:/5 (697 download)

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Book Synopsis Effect of Chelated Trace Mineral Supplements on Growth and Reproductive Performance of Cattle by : Roshan Lal

Download or read book Effect of Chelated Trace Mineral Supplements on Growth and Reproductive Performance of Cattle written by Roshan Lal and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Supplemental Trace Minerals (Zn, Cu, and Mn) as Sulfates Or Hydroxy Trace Mineral Sources for Beef Heifers

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ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (18 download)

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Book Synopsis Supplemental Trace Minerals (Zn, Cu, and Mn) as Sulfates Or Hydroxy Trace Mineral Sources for Beef Heifers by : Randy Hunter Burnett

Download or read book Supplemental Trace Minerals (Zn, Cu, and Mn) as Sulfates Or Hydroxy Trace Mineral Sources for Beef Heifers written by Randy Hunter Burnett and published by . This book was released on 2017 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crossbred heifers (n = 286, 255 ± 4.5 kg initial BW, 295 ± 16.5 d of age) were used over a 2-yr period to determine the effects of mineral source on beef heifer development at 2 locations (n = 71 and n = 72, Fayetteville, blocks 1 and 4; n = 72 in each of 2 breeding groups, Batesville, blocks 2 and 3). Heifers were stratified based on initial BW, age, health, prior research projects, and sire, and then assigned to 6 groups of 12 heifers, that were assigned randomly to 1 of 2 trace mineral treatments. The 2 treatments were trace mineral supplementation (Cu [74 mg/d], Mn [294 mg/d], and Zn [221 mg/d]) as 1) sulfate or 2) hydroxychloride sources. Treatments were delivered through mineral and vitamin supplements provided free choice and formulated for a consumption rate of 113 g/d. Treatments began on d 0, and the breeding season began on d 112 and d 105 (blocks 1 and 4 respectively). After a synchronization period and a 10 d eligible period for artificial insemination, heifers were exposed to bulls for 50 d. At d 130 (block 2) and d 146 (block 3) heifers were exposed to bulls for 60 d. The trail concluded on d 224 (block 1), d 227 (block 4), d 252 (block 2), and d 268 (block 3). During the trial, BW at 28-d intervals, mineral disappearance, health records, and reproductive efficiency data were recorded. At the end of each trial, pregnancy was confirmed by the presence of Pregnancy-Specific Protein B concentrations in blood. No treatment differences (P ≥ 0.52) were detected in BW or ADG. There was no significance for greater mineral disappearance between mineral sulfate and hydroxychloride treatments (P = 0.46) There were no differences in the percentage of heifers treated for bovine respiratory disease (P = 0.77) or foot rot occurrence (P = 0.57) between sulfate and hydroxychloride treatments. Trace mineral source did not affect overall pregnancy rates (P = 0.85). Therefore, supplementing either a sulfate or hydroxychloride source of Zn, Cu, and Mn to developing beef heifers resulted in similar performance.

The Effect of Trace Mineral Supplements Upon the Performance of Wintering and Fattening Heifers

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ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (417 download)

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Book Synopsis The Effect of Trace Mineral Supplements Upon the Performance of Wintering and Fattening Heifers by : Jack L. Clark

Download or read book The Effect of Trace Mineral Supplements Upon the Performance of Wintering and Fattening Heifers written by Jack L. Clark and published by . This book was released on 1965 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effects of Trace Mineral Supplementation in Lactating Dairy Cattle

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ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (967 download)

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Book Synopsis Effects of Trace Mineral Supplementation in Lactating Dairy Cattle by : Mathew J. Faulkner

Download or read book Effects of Trace Mineral Supplementation in Lactating Dairy Cattle written by Mathew J. Faulkner and published by . This book was released on 2016 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were designed to study the effects of Cu, Zn, and Mn supplementation on production, gene expression of trace mineral transporters expressed in the milk fat globular membrane (MFGM), milk fatty acid (FA) profiles, digestibility, and fecal bacteria relative abundance in lactating dairy cattle. In experiment 1, 30 Holstein cows were fed diets devoid of supplemental Cu, Zn, and Mn (basal diet provided 8, 41, and 41mg/kg, respectively) for 30 d and were then split into three treatment groups: one group remained on the unsupplemented diet; the second and third groups were fed a diet supplemented with Cu, Zn and Mn from sulfates (assayed total dietary concentrations = 17, 60, and 55mg/kg, respectively) or glycinates (assayed total dietary concentrations = 20, 66, and 58mg/kg, respectively) for 30 d. Milk yield (averaged 29.2 kg/d), DMI (averaged 3.55% of BW or 22.5 kg/d) as a percent of BW, and milk components were not affected by treatment. Feeding supplemental minerals decreased iso-15:0, anteiso-15:0, iso-17:0, and 16:1+anteiso-17:0 branched-chain fatty acids (FA) and tended to increase trans-10 18:1 as percentages of total FA in milk fat. Trans-10 18:1 was greater (0.76 vs 0.50%) for cows fed sulfate minerals compared to glycinate sources. Gene expression (via qPCR) of metallothionein (1.51 vs 0.77 2(-delta Ct)) in MFGM were greater for multiparous cows than primiparous. Expression of a zinc transporter, ZIP8, was greater (3.37 vs 2.06 and 2.65 2(-delta Ct)) for cows not fed supplemental minerals compared to cows fed sulfate and glycinate sources, respectively. In experiment 2, Eighteen multiparous cows were used in a split-plot replicated Latin square with two 28 d periods to evaluate the effects of Cu, Zn, and Mn source (sulfates or hydroxy; Micronutrients Inc., Indianapolis, IN) and dietary neutral detergent fiber (NDF) source (forage-based control diet = 26% NDF vs byproduct = 36%) on total-tract nutrient digestibility, mineral balance, and gene expression of trace mineral transporters in the MFGM. During the entire experiment (56 d) cows remained on the same fiber treatment but source of supplemental trace mineral was different for each 28 d period so all cows were exposed to both mineral treatments. During each of the two 28 d periods cows were fed no supplemental Cu, Zn, or Mn for 16 d followed by 12 d of feeding supplemental Cu, Zn, and Mn from either sulfates or hydroxy sources. Basal Cu, Zn, and Mn concentrations for the control diet were 9, 30, and 38mg/kg, respectively; while basal concentrations were 11, 50, and 47mg/kg, respectively for the byproduct diet. Supplemental concentrations of Cu, Zn, and Mn fed were approximately 9, 30, and 30mg/kg, respectively. Treatment had no effect on DMI (averaged 24.2 kg/d) or milk production (34.9 kg/g). No mineral source x fiber interactions were observed for production measures or macronutrient digestibility; however apparent Cu balance and Cu retention was increased for cows fed the control diet with hydroxy minerals compared to the control diet with sulfate minerals (+11 vs -3 mg/d), but retention of Cu was decreased for the byproduct diet when cows were fed hydroxy minerals compared to sulfates (-5 vs +29 mg/d). Cows fed the byproduct diet had decreased DM digestibility (65.9 vs 70.2%), OM digestibility (67.4 vs 71.7%), CP digestibility (58.8 vs 62.1%) and starch intake (4.3 vs 8.8kg), and increased starch digestibility (97.5 vs 96.3%), NDF intake (8.6 vs 6.0kg) and NDF digestibility (50.5 vs 44.4%) compared with cows fed the control treatment. The control diet had increased TDN concentration (70.2 vs 65.3%) compared to the byproduct diet. Measured NDF digestibility and TDN treatment effects were consistent regardless of the method used to determine NDF. Multiple (>12) milk FA concentrations were affected by fiber source and mineral source. In experiment 3, 24 cows were fed diets devoid of supplemental Cu, Zn, and Mn for a 16 d preliminary phase (basal diet provided 9, 29, and 32mg/kg of Cu, Zn, and Mn, respectively), and then were randomly assigned to one of three treatment diets (n=8 cows/treatment): supplemental Cu, Zn, and Mn from sulfate mineral; or glycinate minerals; or Cu and Mn sulfate with glycinate Zn. Assayed total dietary concentrations were approximately 21, 73, and 72 mg/kg for Cu, Zn, and Mn, respectively. Body weight, milk production (averaged 38.8 kg/d), DMI (averaged 25.8 kg/d), and analyzed milk components were not affected by treatment. Fecal DNA was extracted, amplified using the 16S rRNA gene to quantify total bacteria, and microbial populations were sequenced to compare populations between treatments. Relative abundance of phyla Spirochaetes, family Spirochaetaceae, genus Treponema, and uncultured or other treponema species were less abundant for cows fed Cu and Mn sulfate with glycinate Zn compared to those fed sulfates, but were similar to cows fed glycinate mineral sources, and responses for cows fed either exclusive glycinate mineral or sulfate mineral treatments were similar.

Effect of Trace Mineral Amount and Source on Immune Function and Oxidative Stress In Dairy Cows

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Total Pages : 0 pages
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Book Synopsis Effect of Trace Mineral Amount and Source on Immune Function and Oxidative Stress In Dairy Cows by : Takashi Yasui

Download or read book Effect of Trace Mineral Amount and Source on Immune Function and Oxidative Stress In Dairy Cows written by Takashi Yasui and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forty-eight multiparous Holstein cows during early to midlactation were utilized to assess effect of trace mineral amount and source on immune function and oxidative status in dairy cows. Cows were fed a diet formulated to meet or exceed NRC (2001) nutrient requirements for all nutrients except for trace minerals of interest (Zn, Cu, and Mn), which were supplied from basal ration ingredients only. In addition, all cows were fed a preliminary diet for four weeks (week -3 to week 0), containing 0.37% sulfur (dry matter basis, ration addition), 5 ppm of molybdenum from sodium molybdate (topdress), and 250 ppm of iron from iron sulfate (topdress) to decrease trace mineral absorption and status. After this four-week preliminary period, the sulfur content of the basal diet was reduced to 0.30%, the topdress of the Mo and Fe ceased, and cows were assigned to one of four dietary treatments for six weeks (week 1 to week 6) in a randomized complete block design: 1) NRC inorganic (NRC 2001 levels using inorganic trace mineral supplements only); 2) NRC organic (NRC 2001 levels using organic trace mineral supplements only); 3) Commercial inorganic (commercial levels (approximately 2X NRC requirement) using inorganic trace mineral supplements only; 4) Commercial organic (commercial levels using organic trace mineral supplements only). Supplemental inorganic Zn, Cu, and Mn were supplied using zinc sulfate monohydrate, cupric sulfate pentahydrate, and manganese sulfate monohydrate, respectively. Organic trace minerals were supplied as Zn, Cu, and Mn chelated to 2-hydroxy-4-(methythio)-butanoic acid (HMTBA). All oxidative status parameters from weekly blood samples were not affected by treatments when assessed across the entire treatment period. However, there were tendencies at week 1 of treatment period for decreased glutathione peroxidase activity for cows fed trace minerals at commercial levels, decreased total antioxidant capacity (TAC) in plasma for cows fed inorganic sources of trace minerals at NRC levels, and decreased concentrations of thiobarbituric acid reactive substances (TBARS) for cows fed organic trace mineral sources. At week 6 of treatment (one week following LPS challenge), cows fed commercial levels of trace minerals tended to have increased TAC and cows fed organic trace minerals had decreased TBARS in plasma. Plasma IgG level was higher in cows supplemented with organic trace minerals over the entire treatment period; responses assessed as differences of before and after E. coli J5 vaccination at the end of week 2 of treatment period were not significant. After LPS intramammary challenge at the end of week 5, plasma cortisol concentrations and clinical indices (rectal temperature and heart rate) increased and then decreased to prechallenge level by 48 h after the challenge. However, the extent and pattern of response of these variables to LPS challenge were not affected by trace mineral level and source. Dry matter intake, milk composition, and milk component yield were not affected by trace mineral level and source, except for a trend for increased milk true protein content for cows fed the commercial level of trace minerals. Body condition score and body weight were not affected by treatment. Overall, varying level and source of trace minerals in the diet resulted in modest effects on parameters related to oxidative stress but did not appear to markedly affect responses of cows to intramammary LPS challenge.

Nutritional Implications for Oxidative Status, Immune Function, and Energy Metabolism in Transition Dairy Cows and Relationships with Postpartum Performance and Endometritis

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ISBN 13 :
Total Pages : 265 pages
Book Rating : 4.:/5 (913 download)

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Book Synopsis Nutritional Implications for Oxidative Status, Immune Function, and Energy Metabolism in Transition Dairy Cows and Relationships with Postpartum Performance and Endometritis by : Takashi Yasui

Download or read book Nutritional Implications for Oxidative Status, Immune Function, and Energy Metabolism in Transition Dairy Cows and Relationships with Postpartum Performance and Endometritis written by Takashi Yasui and published by . This book was released on 2013 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Factors associated with a failure to adapt metabolic and physiological regulation during the transition period include oxidative stress, metabolic disorders, and imbalanced energy status. Those factors are not only correlated to each other, but also related to low performance and immune suppression, which leads to development of periparturient-related diseases such as cytological endometritis (CE). The objectives of this work were to investigate the: 1) effect of source of trace minerals on production, oxidative metabolism, and the incidence of CE; 2) effect of chromium propionate (Cr-Pro) supplementation on production, metabolism, and the incidence of CE; 3) effect of supplemental monensin and varying postpartum fermentable starch level on the incidence of CE and related immune functions; and 4) association of CE with energy metabolism and inflammation. The first experiment found that, compared to inorganic or organic sources, supplemental hydroxy trace minerals (HTM), a recently available source of trace minerals, improved aspects of milk production, modulated plasma indices of oxidative balance, and reduced plasma haptoglobin levels immediately after parturition, suggesting that HTM are more bioavailable and can affect the body system related to production, oxidative metabolism, and inflammatory responses. In experiment two, feeding Cr-Pro resulted in improved prepartum dry matter intake in addition to reduced prepartum plasma non-esterified fatty acid (NEFA), and decreased incidence of CE along with increased uterine neutrophil influx immediately after parturition. This implies that Cr-Pro can improve periparturient energy metabolism and uterine immunity. The third experiment revealed that innate immune responses were improved during the early postpartum period in cows fed high starch diets for 3 weeks after parturition, and during early lactation in cows fed monensin. Finally, analyses conducted indicated that negative energy balance during the first 3 weeks after parturition was a critical factor to develop CE because cows with CE had higher area under the curve of plasma NEFA and beta-hydroxybutyric acid, and lower calculated energy balance during that period compared to cows without CE. The findings obtained from this work give practical approaches to optimize overall performance in transition dairy cows and provide partial mechanisms for how oxidative status, metabolism, and energy balance interrelate.

Vitamins and Trace Minerals in Ruminants, An Issue of Veterinary Clinics of North America: Food Animal Practice, E-Book

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Publisher : Elsevier Health Sciences
ISBN 13 : 0443183430
Total Pages : 234 pages
Book Rating : 4.4/5 (431 download)

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Book Synopsis Vitamins and Trace Minerals in Ruminants, An Issue of Veterinary Clinics of North America: Food Animal Practice, E-Book by : William S Swecker

Download or read book Vitamins and Trace Minerals in Ruminants, An Issue of Veterinary Clinics of North America: Food Animal Practice, E-Book written by William S Swecker and published by Elsevier Health Sciences. This book was released on 2023-10-13 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this issue of Veterinary Clinics of North America: Food Animal Practice, guest editors Drs. Robert J. Van Saun and William S. Swecker, Jr. bring their considerable expertise to the topic of Vitamins and Trace Minerals in Ruminants. Optimal nutrition with adequate trace mineral levels guarantees proper function and nutrition of the animal, but purity and effectiveness are important concerns. In this issue, top experts in the field review trace mineral function, requirements, and content of common feeds, as well as specific diet challenges for ruminants and cattle. Contains 13 relevant, practice-oriented topics including evaluation of mineral sources; confinement dairy; vitamin supplementation; common toxicosis; maternal-fetal transfer of trace minerals and fetal programming; and more. Provides in-depth clinical reviews on vitamins and trace minerals in ruminants, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.