Influence of organic iron complex on sow reproductive performance and iron status of nursing pigs

Wang, Jun; Li, Desheng; Che, Lianqiang; Lin, Yan; Fang, Zhengfeng; Xu, Shengyu; Wu, De

doi:10.1016/j.livsci.2013.11.024

Cited by 23 publications

(17 citation statements)

References 33 publications

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“…Low HCT and HGB levels are associated with anemia ( Kals et al., 2016 ). In the present study, adding Fe-Gly to the diet of sows significantly increased RBC, HGB concentrations and HTC of newborn piglets, this finding is in agreement with the results of previous studies ( Peters and Mahan, 2008 , Wang et al., 2014 ). The only exception was the high-dose groups (110 and 140 mg/kg).…”

Section: Discussionsupporting

confidence: 94%

Effect of different sources and levels of iron in the diet of sows on iron status in neonatal pigs

Yang

Dong

et al. 2018

Animal Nutrition

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This study was conducted to determine the effects of maternal dietary supplementation of ferrous glycine chelate (Fe-Gly) and ferrous sulfate monohydrate (FeSO4·H2O) on the relative organ weight, tissue iron contents, red blood cells (RBC), hemoglobin concentration (HGB) and hematocrit (HCT) in blood, as well as ferritin (Fn), serum iron (SI), and total iron binding capacity (TIBC) in serum of newborn piglets. Forty-five sows (Landrace × Large white, mean parity 3 to 4, no significant differences in BW) were randomly allotted to 9 treatments (n = 5 sows/treatment): control (basal diet with no Fe supplementation), the basal diet supplemented with 50, 80, 110 or 140 mg Fe/kg as Fe-Gly, and the basal diet supplemented with 50, 80, 110 or 140 mg Fe/kg as FeSO4·H2O. The neonatal piglets (n = 45) were used to determine the relative organ weight, tissue iron contents and blood biochemical indices. Compared with the control, the relative weight of spleen and kidney were significantly increased (P < 0.05) in the Fe-Gly groups. The iron contents in liver, spleen, kidney and femur were also found increased (P < 0.05) in the Fe-Gly groups. The RBC (d 1 and 21), HGB (d 1 and 21) and HCT (d 1 and 21) in blood and Fn (d 1) and SI (d 1 and 21) significantly increased (P < 0.05), but the TIBC (d 1 and 21) in serum decreased (P < 0.05) in the Fe-Gly groups. Moreover, the kidney relative weight, iron content in liver, spleen, kidney and femur, RBC (d 1) and HGB (d 21) in blood, and SI (d 1) in the Fe-Gly groups increased (P < 0.05) compared with the FeSO4·H2O treatment. Linear and quadratic responses of the kidney relative weight, the iron content in liver, spleen, kidney and femur, RBC (d 1 and 21), HGB (d 1 and 21) and HCT (d 1 and 21) in whole blood, SI (d 1) and TIBC (d 1 and 21) in the Fe-Gly groups were observed (P < 0.05). Linear responses of Fn (d 1 and 21) and SI (d 21) in the Fe-Gly groups, and spleen relative weight, HCT (d 1), Fn (d 1) and TIBC (d 1 and 21) in the FeSO4·H2O groups were observed (P < 0.05). These finding suggest that Fe-Gly supplemented at the level of 110 mg/kg in the diet of sows in this experiment is superior to other forms of supplementation, based on HGB concentration, the relative organ weight, tissue iron contents and blood biochemical indices of piglets.

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Section: Discussionsupporting

confidence: 94%

Effect of different sources and levels of iron in the diet of sows on iron status in neonatal pigs

Yang

Dong

et al. 2018

Animal Nutrition

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“…The results also depended on the organic mineral characteristics, the mineral interaction with other food components, the iron content, and the proportion of other minerals in the diet. The results were also affected by the response criteria considered for estimating the bioavailability, age and physiological state of the animals, and previous degree of mineral restriction imposed on the animals (Wang et al, 2014). The results of this study diverged from others that noted the efficacy of dietary chelated iron in preventing piglet anemia and should be kept in mind, especially when the aspects described above are observed.…”

Section: Discussioncontrasting

confidence: 78%

The effect of supplementing sow and piglet diets with different forms of iron

et al. 2016

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-The objective of this study was to evaluate the effect of chelated iron supplementation on gestating and lactating sows and on their suckling and weaned piglets. Reproductive traits, piglet performance, hematological parameters, and the iron concentrations in colostrum, milk, and stillborn livers were measured. Ninety-six sows were subjected to one of three treatment groups. Group T1 comprised pregnant and lactating sows treated with diets supplemented with inorganic iron (551 mg Fe/kg) and suckling piglets administered 200 mg of injectable iron dextran. Group T2 was the same as T1, except that sows after 84 days of gestation, lactating sows, and suckling piglets were fed a diet supplemented with 150 mg Fe/kg of chelated iron, and suckling piglets were administered injectable iron dextran. Group T3 was the same as T2 but without injectable iron dextran for suckling piglets. During the nursery phase, all of the weaned piglets were penned with their original groups or treatments and received isonutritive and isocaloric feeds. Piglets from the T2 and T3 groups also received an additional 150 mg Fe/kg of chelated iron via their feed. There were no differences among the treatments for reproductive traits or the iron concentrations in the colostrum, milk, or liver. The piglets that did not receive the injectable iron dextran showed the poorest performance during the pre-and post-weaning phases and showed the poorest hematological parameters of the suckling piglets. The chelated iron supplementation is insufficient to meet piglet demand. The iron dextran supply is necessary for suckling and weaned piglets.

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“…Organic iron complex increased sow serum iron concentration at day 1 of lactation compared with ferrous sulfate (Wang et al . ), but in our study, there was no difference in blood profiles of sows between the two treatments. The low dosage bacterial‐iron in sow diet may have caused the results in our study.…”

Section: Discussioncontrasting

confidence: 75%

“…Piglets injected with iron had greater individual body weights compared to piglets without iron injection at day 21 of lactation (Wang et al . ). Chwen et al .…”

Section: Discussionmentioning

confidence: 97%

“…Wang et al . () reported that piglets from sows fed organic iron complex tended to have a greater TIBC at day 10 of lactation, and tended to have a higher concentration of Hb, TIBC and serum iron at day 21 of lactation compared with piglets from sows fed ferrous sulfate. Piglets injected with iron had a greater RBC count, Hb, serum iron and TIBC at days 10 and 21 of lactation compared to piglets that were not treated with iron.…”

Section: Discussionmentioning

confidence: 99%

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Comparison effects of dietary iron dextran and bacterial‐iron supplementation on growth performance, fecal microbial flora, and blood profiles in sows and their litters

Zhao

Upadhaya

et al. 2015

Animal Science Journal

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This study was conducted to compare effects of dietary administration of iron dextran and bacterial-iron on growth performance, fecal microbial flora, and blood profiles in sows and their litters. A total of 20 multiparous sows (Landrace × Yorkshire) were randomly allotted into two treatments: (i) ID (basal diet, piglets were injected with iron dextran); (ii) BR (basal diet + bacterial-iron; bacterial-iron was given to sows, piglets were not injected with iron dextran). There were five replicates per treatment with two sows per replicate. No differences were observed on sow and piglet growth performance, fecal microbial flora as well as sow blood profiles between ID and BR treatments. In piglets, blood iron, red blood cell and hemoglobin concentrations in ID treatment were higher (P < 0.05) on days 12 and 24. Furthermore, concentration of white blood cells in BR treatment was lower (P < 0.05) on day 12. However, the percentage of lymphocytes on day 12 was increased (P < 0.05) in BR treatment. In conclusion, effect of iron dextran and bacterial-iron has no difference on growth performance in lactating sows and piglets, but iron dextran injection has higher blood iron, white blood cell, red blood cell and hemoglobin concentrations in piglets.

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Influence of organic iron complex on sow reproductive performance and iron status of nursing pigs

Cited by 23 publications

References 33 publications

Effect of different sources and levels of iron in the diet of sows on iron status in neonatal pigs

Effect of different sources and levels of iron in the diet of sows on iron status in neonatal pigs

The effect of supplementing sow and piglet diets with different forms of iron

Comparison effects of dietary iron dextran and bacterial‐iron supplementation on growth performance, fecal microbial flora, and blood profiles in sows and their litters

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