Effects of Marginal Selenium Deficiency and Winter Protein Supplementation on Growth, Reproduction and Selenium Status of Beef Cattle

Spears, J. W.; Harvey, R. W.; Segerson, Edward C.

doi:10.2527/jas1986.632586x

Cited by 55 publications

(42 citation statements)

References 17 publications

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“…There were no differences (P>0.05) in ADG and feed conversion. Several studies have shown an increase in ADG with Na 2 SeO 3 injections (Spears et al 1986, Castellan et al 1999 or no response when supplemented with the Se boluses release (Gunter et al 2003) or directly in cattle feed (Lawler et al 2004) and lambs (Vignola et al 2009). Contrary to our results, Kumar et al (2009) found a positive effect on growth performance of the lambs.…”

Section: Growth Performancementioning

confidence: 99%

Influence of dietary magnesium and selenium levels in finishing diets on growth performance and carcass meat quality of feedlot Pelibuey lambs

et al. 2013

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The objective of this study was to evaluate the influence of supplemental dietary selenium (Se) and magnesium (Mg) on feedlot lambs. Sixty-four male lambs were randomly distributed to the following treatments: 1) low level of Mg and Se: diet with 0.18 % of Mg and 0.1 µg Se/g, 2) with supplementation of magnesium oxide (MgO): diet with 0.32 % of Mg and 0.1 µg Se/g, 3) with supplementation of Sodium selenite (Na 2 SeO 3 ): diet with 0.3 µg Se/g and 0.18 % of Mg, 4) With supplementation of MgO and Na 2 SeO 3 : diet with 0.32 % of Mg and 0.3 µg Se/g. There were no differences (P>0.05) in the average daily gain and feed conversion but Se supplement with Na 2 SeO 3 (0.3 µg Se/g) enhanced dry matter intake, dressing percentage (P<0.05) and leg muscle weight (P<0.02). The average values of the water retained potential, coordinate L, a, and sensory analysis were different with Se (P<0.05). Magnesium suplemented as inorganic source (0.32 % of Mg) enhanced (P<0.05) some characteristics in sensorial meat analysis.

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Section: Growth Performancementioning

confidence: 99%

Influence of dietary magnesium and selenium levels in finishing diets on growth performance and carcass meat quality of feedlot Pelibuey lambs

et al. 2013

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“…A study with beef cows and calves fed on feeds marginally deficient in Se indicated that bimonthly Se-vitamin E injections reduced calf death losses (4·2 % v. 15·3 %) from birth to weaning (Spears et al 1986). Most of the deaths in the study were attributed to diarrhoea and subsequent lack of thrift.…”

Section: Disease Resistancementioning

confidence: 99%

Micronutrients and immune function in cattle

2000

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Complex inter-relationships exist between certain micronutrients, immune function and disease resistance in cattle. Several micronutrients have been shown to influence immune responses. The relationship between deficiencies of some micronutrients and disease resistance is less clear. A number of studies have indicated that Cr supplementation may improve cell-mediated and humoral immune response as well as resistance to respiratory infections in stressed cattle. With respiratory-disease challenge models Cr generally does not affect disease resistance. Deficiencies of Cu, Se, vitamin E and Co in cattle reduce the ability of isolated neutrophils to kill yeast and/or bacteria. Cu deficiency reduces antibody production, but cell-mediated immunity is generally not altered. However, Cu deficiency appears to reduce production of interferon and tumour necrosis factor by mononuclear cells. Numerous studies have linked low vitamin E and/or Se status to increased susceptibility of dairy cows to intramammary infections. In contrast to findings in laboratory animals, marginal Zn deficiency does not appear to impair antibody production or lymphocyte responsiveness to mitogen stimulation in ruminants. Co deficiency has been associated with reduced resistance to parasitic infections. It is well documented that vitamin A-deficient animals are more susceptible to various types of infections. β-Carotene, possibly via its antioxidant properties, may affect immune function and disease resistance independent of its role as a precursor of vitamin A.

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“…( Spears et al, 1986), 셀레늄 결핍시 체중저하 및 폐사가 우려되고 과잉섭취 시 식욕저하를 유발할 수 있다 (Rosenfeld and Beath, 1964). II.…”

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Effects of zinc, vitamin and selenium additives for improving meat quality on the growth performance, carcass characteristics and economic efficiency of holstein steers

Cho¹,

Lee²

2015

Korean Journal of Agricultural Science

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: This study was conducted to investigate the effect of different additives on the growth performance, feed efficiency and carcass characteristics in Holstein steers during 18month fattening periods. Twenty four Holstein steers, 5months of age and 176.6kg, were randomly allocated to 3 experimental groups 8 animals each for 18-months feeding trial. The groups were control (not additive), T1 (fed zinc, Vitamin C) and T2 (fed zinc, Vitamin C, Vitamin B6 and Selenium). According to feeding additives, final weight was not significantly different among the treatment groups, tended to be high at T2 group (827kg) compared to the other groups. Average daily gain was not different among the treatment groups during the experimental periods, but T2 group was significantly greater than T1 group in growing stage (p<0.05). The feed additives had no effects on DMI during experimental periods. Feed conversion ratio of T1 group in growing stage was significantly higher than those of other groups (p<0.05), average feed conversion ratio was tend to be decreased at T2 group rather compared with other groups. In the results of yield traits, carcass weight were relatively higher in T2 group than other groups (p<0.05). Rib-eye area, back fat thickness and yield index were similar between groups. In quality traits, marbling, meat color, fat color, texture and maturity were not significantly different among the groups. In economic efficiency, income was highest at T2 group as 91~393 thousand won among 3 groups.

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Effects of Marginal Selenium Deficiency and Winter Protein Supplementation on Growth, Reproduction and Selenium Status of Beef Cattle

Cited by 55 publications

References 17 publications

Influence of dietary magnesium and selenium levels in finishing diets on growth performance and carcass meat quality of feedlot Pelibuey lambs

Influence of dietary magnesium and selenium levels in finishing diets on growth performance and carcass meat quality of feedlot Pelibuey lambs

Micronutrients and immune function in cattle

Effects of zinc, vitamin and selenium additives for improving meat quality on the growth performance, carcass characteristics and economic efficiency of holstein steers

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