妊娠母羊日粮中添加维生素E对羔羊成活率以及体况指标的影响

试验旨在研究妊娠母羊日粮中添加维生素E(VE)对羔羊成活率的影响.选择42只妊娠45d的成年经产小尾寒羊,随机分为2组,每组21只.对照组小尾寒羊饲喂基础日粮,试验组在基础日粮基础上补饲维生素预混料VE粉,对比两组母羊的产羔率和羔羊成活率.预试期1w,正式试验期4 w.结果表明,试验组母羊产羔23只,繁殖率为109.5...     

Multiple injections of vitamin E and selenium improved the reproductive performance of estrus-synchronized Awassi ewes

Tropical Animal Health and Production - The aim of the current study was to investigate the effects of injecting estrus-synchronized ewes with vitamin E and selenium (Se) on their reproductive...     

Blood and milk status of vitamin E,vitamin A,and selenium in nursing Awassi ewes injected with vitamin E and selenium

Abstract

This study investigated the effects of vitamin E and selenium (Se) injections on concentrations of vitamin E, vitamin A, and Se in blood and milk to predict when injections may improve ewes’ performance. Awassi ewes received 0 (control, 13 ewes) or 15 plus 0.05?mg/kg BW of vitamin E and Se (injected, 15 ewes) at 1 and 4 weeks postpartum. Blood and milk samples were collected weekly for 6 weeks. Injections increased vitamin E, decreased Se, and had no effects on vitamin A levels in blood. Blood vitamin E was correlated positively with vitamin A. Injections increased vitamin E, but had no effects on vitamin A or Se levels in milk. Milk vitamin A was positively correlated with vitamin E and Se levels in the control group. Milk vitamins E and A were positively correlated with their corresponding levels in blood. Milk somatic cell count was negatively correlated with blood vitamin A levels.     

Evaluation of ewe and lamb immune response when ewes were supplemented with vitamin E

Fifty-two Targhee twin-bearing ewes were used in a factorial arrangement of treatments to investigate the role of supplemental vitamin E (vit E); 0 (NE) vs 400 IU of vit E x ewe x (-1)d(-1) (E) and parainfluenza type 3 (PI3) vaccination; none (NP) vs PI3 vaccination (P) in immune function. Parainfluenza type 3 vaccination was used to evoke an immune response. Ewes receiving PI3 were vaccinated at 49 and 21 d before the expected lambing date. Ewes receiving vit E were orally dosed daily, 32 to 0 d before lambing. Blood was collected from ewes at the time of the initial PI3 vaccination and 4 h postpartum. Blood was collected from lambs (n = 104) at 3 d postpartum. Ewe and lamb sera were analyzed for anti-PI3 antibody titers, immunoglobulin G (IgG) titers, and vit E concentrations. Colostrum was collected 4 h postpartum and analyzed for IgG. The model for ewe and lamb analysis included the main effects of vit E and PI3, sex (lambs model only), and their interactions. No interactions were detected (P > 0.20) for any ewe or lamb variables. Serum anti-PI3 titers were greater (P < 0.01) in P ewes and their lambs than NP ewes and their lambs. Serum vit E concentrations were greater (P < 0.01) in E ewes and their lambs than NE ewes and their lambs. Colostral IgG titers and serum anti-PI3 titers did not differ (P > 0.20) between E and NE ewes. Serum IgG titers in E ewes and their lambs did not differ (P > 0.15) from IgG titers in NE ewes and their lambs. Lamb anti-PI3 titers did not differ (P = 0.76) between lambs reared by E and NE ewes. These results indicate that, although supplemental vit E to the ewe increased lamb serum vit E concentration, it had no effect on measures used in this study to assess humoral immunity in the ewe or passive immunity to the lamb.     

Use of sodium hydroxide treated selenium deficient barley to induce vitamin E and selenium deficiency in yearling cattle

Selenium deficient barley grown in Northern Ireland was treated with sodium hydroxide to deplete it of vitamin E. Housed cattle fed a complete diet based on this treated barley developed nutritional degenerative myopathy, showing that spontaneous myopathy in yearling cattle can be the result of vitamin E and selenium deficiency alone. The diet used is as effective and cheaper than others presently in use for inducing degenerative myopathy.     

Effects of selenium and vitamin E supplementation on selenium distribution and meat quality of pigs

Abstract

The study was conducted on 60 pigs kept in individual pens. The animals were allocated to four groups. The growing-finishing pigs from the control group were fed with basic feed containing 0.3 mg selenium (Se) derived from Na₂SeO₃ kg^?1 and 60 mg of dl-α-tocopheryl acetate kg^?1. The remaining three groups were differentiated by adding 0.2 mg kg^?1 Se-enriched yeast (Saccharomyces cerevisiae) and/or 60 mg vitamin E to feed (grower and finisher). Our results show that the addition of organic Se to inorganic Se commonly used in pig feed caused a significant increase in hepatic Se and muscle. This indicates the possibility of using these products as functional foods to improve Se status in humans residing within regions which are deficient in this trace element. We found no beneficial effect of supplementation with vitamin E and Se on the quality of the meat.     

不同日粮条件下添加维生素E对蛋种鸡繁殖性能的影响

本试验选择220日龄健康的伊莎父母代种鸡6000羽,随机分为8组,每组8个重复.Ⅰ、Ⅱ、Ⅲ、Ⅳ组为常 规日粮组,分别添加维生素E0、40、180、300 mg/kg;V、Ⅵ、Ⅶ、Ⅷ组为非常规基础日粮,分别添加维生素E0、40、180、300 mg/kg.通过8周饲养试验,测定不同剂量的维生素E对蛋种鸡受精率、死胎率、...     

High mineral and vitamin E intake by pregnant ewes lowers colostral immunoglobulin G absorption by the lamb

A 2 x 2 factorial arrangement of treatments with 78 mature ewes was used to evaluate the effects of supplementing the pregnant ewe's diet with high levels of minerals and vitamin E on immunoglobulin G (IgG) absorption by the lamb and whether any altered efficacy of IgG absorption was due to the colostrum or to the lamb. The ewes were estrus-synchronized in October and housed in wk 10 of gestation. In the final 7 wk of gestation, a grass silage-based diet, offered ad libitum, was supplemented with 500 g of a 19% CP concentrate, and from 1 wk later until lambing, half the ewes was offered 48 g of a mineral/vitamin supplement containing 6.5 g of Ca, 4.9 g of P, 5.9 g of Mg, 4.0 g of Na, 790 mg of Zn, 3.5 mg of Se, 40 mg of I, 200 mg of Mn, 20 mg of Co, and 40 IU of vitamin E. At birth, the lambs were allocated to one of four treatments in a 2 x 2 factorial arrangement, with lamb origin and colostrum origin as the two factors. The lambs born to ewes not offered the mineral supplement were fed colostrum obtained from their own dams or from ewes in the mineral-supplemented treatment, whereas lambs born to ewes given supplemental minerals were fed colostrum obtained either from their dams or from ewes in the control treatment. The ewes were milked at 1, 10, and 18 h postpartum and the lambs were fed using a stomach tube. A 5-mL blood sample was taken from each lamb at 24 h postpartum for IgG analysis. The level of fecal adhesion to the upper tail/rump area of the lamb was subjectively scored at 72 h postpartum. There was no difference in gestation length, lamb birth weight, colostrum yield, or IgG production (P = 0.16 to 0.82). When ewes were fed supplemental minerals, the serum IgG content of the progeny was lower than in their control counterparts (6.8 vs. 16.1 g/L; P < 0.001), regardless of whether the lamb received colostrum from ewes with or without access to supplementary minerals. The difference in serum IgG concentrations at 24 h postpartum was a direct reflection of a compromised efficiency in IgG absorption. The progeny of ewes with access to minerals had higher (P < 0.05) levels of fecal adhesion, which was not related to the origin of the colostrum, indicating altered digestive function in these lambs. We conclude, using the sheep as a model, that high mineral intakes in late pregnancy not only lower serum IgG concentrations in the lamb, but also that high mineral intakes result in the neonate being preprogrammed at birth so that it is born with a compromised ability to absorb colostral IgG.     

Effects of vitamin E and different energy sources on vitamin E status, milk quality and reproduction in transition cows

We investigated whether vitamin E supplementation and supplemental energy sources (fat or starch) influenced plasma and milk levels of vitamin E, and reproductive and other parameters in 28 Italian Friesian multiparous dry cows. From 14 days before expected calving to 7 days after, the animals were assigned to either basal diet (containing 1000 IU/day of vitamin E) or an extra 1000 IU/day of vitamin E (total 2000 IU). In addition they received either 0.5 kg/day of corn or 0.2 kg/day of calcium soaps. Plasma samples were collected 4 days before expected calving and 4 days after calving and analysed for alpha-tocopherol and cholesterol. Milk yield as well as the composition, somatic cell count (SCC) and alpha-tocopherol of milk were determined 7 and 14 days after calving. Milk yield and composition were unaffected by treatments. SCC was significantly lower in (SCC Log 4.62 versus Log 5.1, P < 0.01) 2000 IU/day animals than in the 1000 IU/day group. Milk alpha-tocopherol was higher (P < 0.001) in animals receiving 2000 IU/day (1.11 vs. 0.65 microgram/ml, P < 0.01). Plasma alpha-tocopherol in animals receiving 2000 IU/day was also higher (P < 0.001) than in cows receiving 1000 IU/day (4.85 vs. 3.25 micrograms/ml), but was not affected by dietary energy source. Number of services and days to conception were lower (P < 0.01) in the 2000 IU vitamin E supplemented cows. To conclude, dietary vitamin E supplementation to periparturient dairy cows increased plasma and milk vitamin E, decreased SCC in milk, and improved fertility but different energy sources had no effect on any measured variable.     

富铁力与维生素E合用预防哺乳仔猪缺硒效果好

我场哺乳仔猪缺硒现象比较普遍,后来应用富铁力(含硒化合物1 mg/mL),既补铁,又补了硒,取得了一定的预防效果. 1 材料及方法 富铁力系广西南宁市桃源兽药厂生产,规格10 mL/瓶,其中含络合铁150 mg/mL,硒化合物1 mg/mL,批号98042727.     

维生素E对羔羊成活率和生产性能的影响

维生素Ｅ是所有具有α -生育酚功能的母育酚和生育三烯醇衍生物的总称。放牧到春天青草茂盛草场上的母羊 ,一般含有高浓度的血清维生素Ｅ。相比之下 ,饲喂贮藏干草或休牧期的母羊 ,通常含有较低的血清维生素Ｅ浓度。母羊血清维生素Ｅ水平产前 7ｄ可降低约 50 % ,直到产后 2 0～ 3 0ｄ才会恢复至正常水平。因此有理由推测休牧期或喂给收割饲料的怀孕绵羊在冬末春初产羔之前 ,为提高羔羊生产力需补充维生素Ｅ。脂肪组织是机体储存维生素Ｅ的主要部位 (Ｐｕｌｓ ,1 994)。然而维生素Ｅ不可能以合理的浓度被储存于机体内 (Ｒａｍ ｍｅｌｌ,1 983…