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| 1 | Optimizing dietary lipid use to improve essential fatty acid status and reproductive performance of the modern lactating sow:a review显示文摘Dietary lipid supplementation benefits the prolific and high-producing modern lactating sow. A comprehensive review of recent studies showed that lipid supplementation increases average daily energy intake, which is partitioned for lactation as indicated by greater milk fat output and improved litter growth rate. Recent compelling findings showed that addition of particular lipids during lactation improved the subsequent reproductive outcome of sows. Such benefits were related to the level of dietary essential fatty acids(EFA, linoleic acid, C18:2n-6; and α-linolenic acid, C18:3n-3) during lactation. Lactation diets without supplemental EFA resulted in a pronounced negative balance(intake minus milk output) of linoleic(-25.49 g/d) and α-linolenic acid(-2.75 g/d); which compromised sow fertility(farrowing rate < 75 % and culling rates > 25 % of weaned sows). This phenomenon seems to be increasingly important with advancing sow age because of a progressive reduction of body EFA pool over successive lactations. The net effect of supplemental EFA during lactation was to create a positive EFA balance, which improved the subsequent reproduction of sows. Adequate linoleic acid intake improved the proportion of sows that farrowed in the subsequent cycle(Farrowing rate(%) = [(-1.5 × 10^(-3)× linoleic acid intake(g/d)~2) +(0.53 × linoleic acid intake(g/d)) +(45.2)]; quadratic P = 0.002, R^2= 0.997, RMSE = 0.031). In addition, increasing linoleic acid intake increased the number of pigs born in the subsequent cycle(total pigs born(n) = [(9.4 × 10^(-5)× linoleic acid intake(g/d)~2) +(0.04 × linoleic acid intake(g/d)) +(10.94)]; quadratic P = 0.002, R^2= 0.997, RMSE = 0.031). Supplemental α-linolenic acid resulted in a rapid return to estrus(sows bred: sows weaned = 94.2 %; wean-to-estrus interval = 4.0 d) and achieved a high retention of pregnancy(sows pregnant: sows bred = 98 %). Collectively, we conclude that a minimum dietary intake of10 g/d of α-linolenic acid, simultaneous with a minimum of 125 g/d of linoleic acid should be provided to ≥ 95 % of the sows; thereby, achieving a maximum sow reproductive efficiency through multiple mechanisms that include rapid return to estrus, high maintenance of pregnancy and large subsequent litter size in mature sows, that appear to be susceptible to EFA deficiency. | David S.Rosero R.Dean Boyd Jack Odle Eric van Heugten | 2016 | Journal of Animal Science and Biotechnology2016，7，3： | 8 |
| 2 | Growth performance,oxidative stress and immune status of newly weaned pigs fed peroxidized lipids with or without supplemental vitamin E or polyphenols显示文摘Background:This study evaluated the use of dietary vitamin E and polyphenols on growth,immune and oxidative status of weaned pigs fed peroxidized lipids.A total of 192 piglets(21 days of age and body weight of 6.62±1.04 kg)were assigned within sex and weight blocks to a 2×3 factorial arrangement using 48 pens with 4 pigs per pen.Dietary treatments consisted of lipid peroxidation(6%edible soybean oil or 6%peroxidized soybean oil),and antioxidant supplementation(control diet containing 33 IU/kg DL-α-tocopheryl-acetate;control with 200 IU/kg additional dl-α-tocopheryl-acetate;or control with 400 mg/kg polyphenols).Pigs were fed in 2 phases for 14 and 21 days,respectively.Results:Peroxidation of oil for 12 days at 80°C with exposure to 50 L/min of air substantially increased peroxide values,anisidine value,hexanal,and 2,4-decadienal concentrations.Feeding peroxidized lipids decreased(P<0.001)body weight(23.16 vs.18.74 kg),daily gain(473 vs.346 g/d),daily feed intake(658 vs.535 g/d)and gain:feed ratio(719 vs.647 g/kg).Lipid peroxidation decreased serum vitamin E(P<0.001)and this decrease was larger on day 35(1.82 vs.0.81 mg/kg)than day 14(1.95 vs.1.38 mg/kg).Supplemental vitamin E,but not polyphenols,increased(P≤0.002)serum vitamin E by 84%and 22%for control and peroxidized diets,respectively(interaction,P=0.001).Serum malondialdehyde decreased(P<0.001)with peroxidation on day 14,but not day 35 and protein carbonyl increased(P<0.001)with peroxidation on day 35,but not day 14.Serum 8-hydroxydeoxyguanosine was not affected(P>0.05).Total antioxidant capacity decreased with peroxidation(P<0.001)and increased with vitamin E(P=0.065)and polyphenols(P=0.046)for the control oil diet only.Serum cytokine concentrations increased with feeding peroxidized lipids on day 35,but were not affected by antioxidant supplementation(P>0.05).Conclusion:Feeding peroxidized lipids negatively impacted growth performance and antioxidant capacity of nursery pigs.Supplementation of vitamin E and polyphenols improved total antioxidant capacity,especially in pigs fed control diets,but did not restore growth performance. | Y.V.Silva-Guillen C.Arellano R.D.Boyd G.Martinez E.van Heugten | 2020 | Journal of Animal Science and Biotechnology2020，11，3： | 3 |
| 3 | A longitudinal cohort study on quality of life in stroke patients and their partners: R estore4 S troke C ohort显示文摘 | Maria L. Mierlo Caroline M. Heugten Marcel W. M. Post Eline Lindeman Paul L. M. Kort Johanna M.A. Visser‐Meily | 2014 | Int J Stroke2014，，1： | 2 |
| 4 | Sow performance in response to natural betaine fed during lactation and post-weaning during summer and non-summer months显示文摘Background: Two studies were conducted to evaluate the effects of dietary natural betaine on sow reproductive performance during summer(Exp. 1) and non-summer months(Exp. 2). Treatments were designed as a 2 × 2 factorial arrangement with factors including dietary betaine(0 or 0.2%) and period of supplementation(lactation or post-weaning until 35 days post-insemination). In Exp. 1, 322 and 327 sows and in Exp. 2, 300 and 327 sows representing young(parity 1 and 2) and mature(parity 3 to 6) sows, respectively, were used.Results: In Exp. 1, supplementation of betaine during lactation increased sow body weight losses(-11.95 vs.-14.63 kg;P = 0.024), reduced feed intake(4.12 vs. 4.28 kg/d;P = 0.052), and tended to reduce percentage of no-value pigs(P = 0.071). Betaine fed post-weaning reduced weaning-to-estrus interval(5.75 vs. 6.68 days;P = 0.054) and farrowing rate(86.74% vs. 91.36%;P = 0.060), regardless of parity group. Post-hoc analysis with sows clustered into 3 parity groups(1, 2 and 3, and 4+) indicated that betaine fed in lactation to parity 4+ sows(P = 0.026) and betaine fed post-weaning to parity 1 sows increased the number of pigs born in the subsequent cycle(P ≤ 0.05). In Exp. 2, betaine fed during lactation tended to reduce the weaning-to-estrus interval(6.64 vs. 7.50 days;P = 0.077) and farrowing rate(88.23% vs.83.54%;P = 0.089), regardless of parity group. Feeding betaine post-weaning reduced number of pigs born(13.00 vs.13.64;P = 0.04) and pigs born alive(12.30 vs. 12.82;P = 0.075), regardless of parity group.Conclusions: Using 0.2% betaine during the non-summer months did not benefit sow performance. During the summer, betaine supplementation in lactation increased subsequent litter size in parity 4+ sows. Betaine fed during the post-weaning period reduced the wean-to-estrus interval and farrowing rate, increased total number of pigs born for parity 1 sows and reduced total number of pigs born to parity 4+ sows. Further research is needed to determine if the detrimental effects on feed intake and farrowing rate may be correlated and depend on dietary betaine level. | S.M.Mendoza R.D.Boyd J.Remus P.Wilcock G.E.Martinez E.van Heugten | 2020 | Journal of Animal Science and Biotechnology2020，11，4： | 2 |
| 5 | Effects of organic forms of zinc on growth performance,tissue zinc distribution,and immune response of weanling pigs显示文摘 | Van Heugten E T Spears J W Kegley E B | 2003 | J Anim Sci2003，81，： | 1 |
| 6 | Effects of emulsification, fat encapsulation, and pelleting on weanling pig performance and nutrient digestibility 显示文摘 | XingJ J Heugten E Li D F | 2004 | J Anim Sci2004，82，： | 1 |
| 7 | Growth Performanee,car-cass characteristics,nutrient Digestibility and fecalodorous compounds in growing-finishing pigs fed di-ets containing hydrolyzed feather meal显示文摘 | Heugten E Spears J W | 2002 | Journal ofAnimal Science2002，80，1： | 1 |
| 8 | Effects of biotin and high copper levels on performance and inmmune response of weanling pigs显示文摘 | Kornegay E T van Heugten P H L indemann M D | 1989 | J Anim Sci1989，67，6： | 1 |
| 9 | Transfer effects of a cognitive strategy training for stroke patients with apraxia 显示文摘 | Geusgens CA van Heugten CM Cooijmans JP | 2007 | J Clin Exp Neuropsychol2007，29，8： | 1 |
| 10 | Effect of copper source (cupric citrate vs cupric sulfate) and level on growth performance and copper metabolism in pigs显示文摘 | Armstrong T A Spears J W van Heugten E | 2000 | Asian-Aus J Anim Sci2000，13，： | 1 |
| 11 | Near-diffraction-limited tunable liquid crystal lens with simplified design显示文摘 | LI L W BRYANT D VAN HEUGTEN T etal | 2013 | Optical Engineering2013，52，35： | 1 |
| 12 | Methods may exist to reduce nutrient excretion显示文摘 | Heugten E V Kempen T V | 1999 | Feed Stuffs1999，26，4： | 1 |
| 13 | Effects of immune challenge, dietary energy density, and source of energy on performance and immunity in weaning pig显示文摘 | Heugten E V Coffey M T Spears J W | 1996 | J Anim Sci1996，74，： | 1 |
| 14 | Near-diffraction-limited and low-haze electro-optical tunable liquid crystal lens with floating electrodes显示文摘 | LI L W BRYANT D VAN HEUGTEN T etal | 2013 | Optics Express2013，21，7： | 1 |
| 15 | Grnwth performance nutrient digestibility and fecal mieroflora in weanling pigs fed live yeast显示文摘 | Heugten E V Funderburke D W Dorton K L | 2003 | J Anita Sei2003，81，： | 1 |
| 16 | Effects of biotin and high copper levels on performance and immune response on weanling pigs显示文摘 | KORENGARY E T GVAN P H HEUGTEN | 1989 | J Anim Sci1989，67，： | 1 |
| 17 | Growth performance,nutrient digestibility,and fecal microflora in weanling pigs fed live yeast显示文摘 | VAN HEUGTEN E FUNDERBURKE D W DORTON K L | 2003 | Journal of Animal Science2003，81，： | 1 |
| 18 | Sow and litter response to supplemental dietary fat in lactation diets during high ambient temperatures显示文摘 | Rosero D S Van Heugten E Ole J | 2012 | Journal of animal sclence2012，90，2： | 1 |
| 19 | Effects of organic forms of zinc on growth performance, tissue zinc distribution, and immune response of wearnling pigs 显示文摘 | Van Heugten E Spears J W Kegley E B Ward J D | 2003 | Journal of Animal Science2003，81，8： | 1 |
| 20 | Effects of vitamin C supplementation on plasma ascorbic acid and oxalate concentrations and meat quality in swine显示文摘 | S J Pion E van Heugten M T See | 2004 | J Anim Sci2004，82，： | 1 |
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