Mineral nutrition of grazing sheep in northern china II. Selenium, copper, molybdenum, Iron and zinc in pasture, feed supplements and sheep

Masters, David G.; Purser, D. B.; Yu, Shiguang; Wang, Z. S.; Yang, R. Z.; Liu, N.; Lu, Dunguo; Wu, L. H.; Ren, Jianhong; Li, G. H.

doi:10.5713/ajas.1993.107

Cited by 4 publications

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“…Se deficiency in soils of northern China has resulted in low Se concentrations of the plants that have affected productivity of sheep (Masters et al, 1993). The addition of a dietary Se supplement may be required in areas of northern China.…”

Section: Introductionmentioning

confidence: 99%

Effect of Supplemental Selenomethionine on Growth Performance and Serum Antioxidant Status in Taihang Black Goats

Yue¹,

Zhang²,

Shi³

et al. 2009

Asian Australas. J. Anim. Sci

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An experiment was conducted to evaluate the effect of different levels of supplemental selenomethionine (Se-Met) on growth performance and serum antioxidant status in Taihang Black goats. Fifty 16-week-old goats with an average body weight of 12.5±0.5 kg were randomly assigned to five treatments fed a basal diet (0.049 mg Se/kg DM) supplemented with 0 (control), 0.10, 0.30, 0.50 and 1.00 mg of Se/kg DM (form Se-Met) for 80 days. Average daily gain and feed efficiency were higher (p<0.05) in the groups supplemented with 0.30 to 0.50 mg Se/kg DM compared with the control group. However, Se-Met supplementation had no influence on average daily feed intake (p>0.05). Se-Met supplementation significantly increased (p<0.01) the activity of glutathione peroxidase enzymes (GSH-Px) and superoxide dismutase (SOD) in serum. The group supplemented with 0.50 mg Se/kg DM had the highest activity of GSH-Px compared with other groups (p<0.05). Serum SOD activity was higher (p<0.05) in goats supplemented with both 0.30 and 0.50 mg Se/kg DM than in control goats and goats supplemented with 1.00 mg Se/kg DM. Serum glutathione-S-transferase (GST) activity and malondialdehyde (MDA) concentration were significantly decreased (p<0.05) in goats supplemented with 0.30, 0.50 and 1.00 mg Se/kg DM compared with control values. These results indicated that Se-Met supplementation markedly improved the antioxidant status in goats. Blood Se concentration increased linearly (p<0.001) and quadratically (p<0.001) as the level of supplemental Se-Met increased. The concentration of Se in the control diet (0.049 mg Se/kg DM) did not satisfy the Se requirement in goats as indicated by reduced growth rate, feed efficiency, activities of GSH-Px and SOD in serum, and blood Se concentrations. In conclusion, it is recommended that 0.30 to 0.50 mg of Se/kg DM from Se-Met (total diet Se of 0.349 to 0.549 mg/kg DM) be supplied in the diet of Taihang Black goats to enhance growth performance and improve antioxidant status.

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Section: Introductionmentioning

confidence: 99%

Effect of Supplemental Selenomethionine on Growth Performance and Serum Antioxidant Status in Taihang Black Goats

Yue¹,

Zhang²,

Shi³

et al. 2009

Asian Australas. J. Anim. Sci

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“…Khan et al [4] have reported lower levels of Se which do not fulfill the requirement of ruminants in Pakistan according to the standard requirements laid down by NRC [5]. The borderline Se concentration is responsible for many reproductive and growth related complications in ewes and lambs [3]. Low concentration of Se has been reported to cause a muscular disease in ruminants in addition to affecting various metabolic aspects of animals [6].…”

Section: Introductionmentioning

confidence: 99%

“…Deficiency of Se in the ruminants accelerates the degeneration of various body parts of the livestock [7]. It also results in various complications in ewes particularly related to reproduction and development [3,8]. The requirement of Se for most ruminants for various metabolic functions is 0.10 mg/kg [9] and upper limit which falls in tolerable range has been reported to be 5 mg/kg.…”

Section: Introductionmentioning

confidence: 99%

“…These imbalances of micro-minerals may be due to lower amounts of minerals in soil as well as in forages, the main diet of grazing animals. Imbalances of trace elements sometimes occur due to antagonistic behavior among various mineral elements in the gastrointestinal tract and other body parts of ruminant livestock [3]. In Pakistan, imbalanced supply of trace minerals has been reported to affect reproduction and to the greater degree health of livestock and thus it is considered a main constraint in maximizing the animal production potential [4].…”

Section: Introductionmentioning

confidence: 99%

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Seasonal assessment of selenium as a hazardous element in pasture and animal system: A case study of Kajli sheep in Sargodha, Pakistan

Khan¹,

Ashraf²,

Ahmad³

et al. 2010

Journal of Hazardous Materials

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Blood mineral status of grazing Tibetan sheep in the Northeast of the Qinghai–Tibetan Plateau

et al. 2011

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Mineral nutrition of grazing sheep in northern china II. Selenium, copper, molybdenum, Iron and zinc in pasture, feed supplements and sheep

Cited by 4 publications

References 0 publications

Effect of Supplemental Selenomethionine on Growth Performance and Serum Antioxidant Status in Taihang Black Goats

Effect of Supplemental Selenomethionine on Growth Performance and Serum Antioxidant Status in Taihang Black Goats

Seasonal assessment of selenium as a hazardous element in pasture and animal system: A case study of Kajli sheep in Sargodha, Pakistan

Blood mineral status of grazing Tibetan sheep in the Northeast of the Qinghai–Tibetan Plateau

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