Influence of Controlled Temperatures on Growth Rate and Plasma Ascorbic Acid Values in Swine

Riker, J. T.; Perry, T. W.; Pickett, R. A.; Heidenreich, C. J.

doi:10.1093/jn/92.1.99

Cited by 16 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, it decreased on the short exposure to a hot environment. Some researchers also reported that heat stress decreased plasma vitamin C levels in pigs (Riker et al, 1967) and poultry (Coates, 1984;Sahin et al, 2003), which accords with the present findings.…”

Section: Discussionsupporting

confidence: 92%

See 1 more Smart Citation

Heat stress decreases plasma vitamin C concentration in lactating cows

et al. 2006

View full text Add to dashboard Cite

Section: Discussionsupporting

confidence: 92%

“…It has been reported that the concentration of AsA in plasma is decreased by heat stress in pigs (Riker et al, 1967). Some research using poultry also showed that heat stress decreased the plasma AsA concentration (Nockels et al, 1973;Coates, 1984).…”

Section: Introductionmentioning

confidence: 96%

Heat stress decreases plasma vitamin C concentration in lactating cows

et al. 2006

View full text Add to dashboard Cite

“…Moreover, endogenous VC production may be insufficient for cattle under some conditions (Padilla et al, 2006). VC supplementation during the summer season may be needed to increase plasma VC, as heat stress decreases plasma vitamin C levels in pigs (Ricker, 1967). Moreover, Harmon et al (1997) mentioned that heat stress decreases antioxidant activity in the plasma of lactating cows.…”

Section: Resultsmentioning

confidence: 99%

Hemato-biochemical and Cortisol Profile of Holstein Growing-calves Supplemented with Vitamin C during Summer Season

Kim

Mamuad

Yang

et al. 2012

Asian Australas. J. Anim. Sci

View full text Add to dashboard Cite

:Effect of vitamin C (VC) on biochemical, hematological and cortisol profile of growing Holstein calves during summer was investigated. Eighteen calves between 14 and 16 weeks of age were divided equally into two groups. One group received a diet supplemented with VC (20 g/d) for 60 days, while other non-supplemented diet fed group served as a control (CON). The temperature humidity index (THI) was recorded and computed during the experiment. From days 0 to 60, the THI exceeded 70. Blood samples were collected from the jugular vein of each calf at days 0, 15, 30, 45 and 60. Serum albumin and total protein decreased (p<0.05) in CON and VC calves with age. Serum glutamic-oxaloacetic transaminase concentrations were not affected by treatments. Serum creatinine, albumin and glutamic-pyruvic transaminase concentrations were higher in calves in the VC group than the CON group. While red blood cells, hemoglobin and hematocrit were lower (p<0.05) in VC calves, mean corpuscular volume, mean corpuscular hemoglobin, red blood cell distribution width and mean platelet volume were higher (p<0.05) in these VC supplemented calves. Leukocyte parameters including white blood cells and full term for lymphocytes were not affected by the treatments. Also, serum cortisol was not affected by treatments. At day 15, 30 and 45, the total VC in plasma was higher (p<0.05) in calves fed with VC. In conclusion, serum cortisols were not affected by plasma VC concentration, while some blood parameters were positively influenced in calves fed with VC.

show abstract

“…This could be attributed to an altered balance between synthesis and utilization of vitamin C (Wegger and Palludan, 1984). In any stress situation or period of excitement, such as lactation, training, high environmental temperature, subclinical disease or lameness, a high vitamin C requirement and a consequent diminished plasma concentration of vitamin C can be expected (Riker et al., 1967; Teare et al., 1979; Lund et al., 1980; Wegger and Palludan, 1984; Sigurdsson, 1997). The pigs in this study were exposed to a high environmental temperature due to problems with the ventilation during early spring, which may have contributed to the variations in the vitamin C plasma levels.…”

Section: Discussionmentioning

confidence: 99%

“…The commercial pig synthesizes vitamin C throughout its life (Braude et al., 1950; Lund et al., 1980; Pointillart et al., 1997). However, this does not imply that sufficient amounts are synthesized under different conditions, such as early weaning or at a high environmental temperature (Riker et al., 1967; Mahan et al., 1994; de Rodas et al., 1998).…”

Section: Introductionmentioning

confidence: 99%

Vitamin C Plasma Concentrations and Leg Weakness in the Forelegs of Growing Pigs

Armocida¹,

Beskow²,

Amcoff³

et al. 2001

Journal of Veterinary Medicine Series A

View full text Add to dashboard Cite

Four litters (41 pigs) of cross-bred pigs were studied from 6 to 26 weeks of age. Blood samples were collected at 6, 13, 21 and 26 weeks of age and analysed for contents of vitamin C, calcium (Ca), inorganic phosphorus (P) and alkaline phosphatase (ALP). The pigs were examined clinically for foreleg weakness at the ages of 21 and 26 weeks. At the age of 26 weeks the pigs were slaughtered and the right forelegs were examined macroscopically and selected samples were collected for radiological, histological and ultrastructural examination. The prevalence of foreleg lesions was high, with lesions of dyschondroplasia of the distal growth plate of the ulna in 30 pigs, synovitis of the elbow joint in 24 pigs and osteochondritis dissecans of the elbow joint in 25 pigs. At the ages of 21 and 26 weeks, five pigs had evidently crooked forelegs and 14 pigs (age 21 weeks) and 25 pigs (age 26 weeks) had mildly deformed forelegs. The serum levels of Ca, P and ALP were within normal values for growing-finishing pigs. The range of vitamin C concentrations in plasma showed a wide difference (7.1-49.8 mumol/l) but was not associated with deformed forelegs. The serum concentrations of Ca, P and ALP and the plasma concentration of vitamin C differed significantly (P = 0.05) between age groups and there was a significant (P = 0.001) positive correlation between the levels of vitamin C in plasma and the serum levels of ALP at 6 weeks of age. The aim of the present study was to determine if there was any association between the plasma levels of vitamin C and the extent of crooked or deviated forelegs in growing-finishing pigs. We could not find a vitamin C deficiency during the study and no association between low levels of vitamin C in plasma and the presence of deformed forelegs of these 40 pigs.

show abstract

Influence of Controlled Temperatures on Growth Rate and Plasma Ascorbic Acid Values in Swine

Cited by 16 publications

References 0 publications

Heat stress decreases plasma vitamin C concentration in lactating cows

Heat stress decreases plasma vitamin C concentration in lactating cows

Hemato-biochemical and Cortisol Profile of Holstein Growing-calves Supplemented with Vitamin C during Summer Season

Vitamin C Plasma Concentrations and Leg Weakness in the Forelegs of Growing Pigs

Contact Info

Product

Resources

About