Effects of Vitamin A and Restricted Intake on Performance, Carcass Characteristics, and Serum Retinol Status in Angus × Simmental Feedlot Cattle

Pyatt, N. A.; Berger, L. L.; Nash, T.

doi:10.15232/s1080-7446(15)31223-7

Cited by 14 publications

(9 citation statements)

References 19 publications

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“…From d 0 to slaughter, daily DMI did not differ among treatments (P = 0.31). Results of other studies (Pyatt et al, 2005;Gorocica-Buenfil et al, 2007a,b,c, 2008 have not shown differences in DMI among cattle fed varying concentrations of supplemental vitamin A.…”

Section: Intake Feed Efficiency and Ne Recoverymentioning

confidence: 78%

“…In a receiving experiment, Zinn et al (1996) also observed greater ADG by crossbred calves consuming 2,200 IU of supplemental vitamin A/kg of DM than by those consuming 11,000 IU of supplemental vitamin A/kg of DM; however, this difference was noted only for the first 28 d of the 56-d experiment period. More recently, in 1 of 3 experiments, Pyatt et al (2005) reported that ADG was greater in cattle fed 2,300 IU/kg than in those fed 7,250 IU/kg; however, in the 2 other experiments, no differences in ADG were detected with different vitamin A concentrations. Gorocica-Buenfil et al (2007b, 2008 observed a slight increase in ADG in cattle supplemented with 2,700 IU/kg (P = 0.08) or 2,200 IU/kg (P = 0.14), respectively, compared with those that were fed no supplemental vitamin A. Conversely, Gorocica-Buenfil et al (2007a,c) noted no differences in ADG among Holstein or Angus-cross cattle in response to differences in cumulative vitamin A intakes.…”

Section: Adgmentioning

confidence: 91%

“…In 1 of 3 experiments, Pyatt et al (2005) reported that feed efficiency was improved in cattle fed 2,300 IU/kg compared with those that received 7,250 IU/kg; however, in the other 2 experiments, no differences were detected. Gorocica-Buenfil et al (2007b,c, 2008 noted slightly less feed efficiency (G:F) in cattle that received no supplemental vitamin A during the finishing period compared with those fed 2,700 or 2,200 IU of supplemental vitamin A/kg.…”

Section: Intake Feed Efficiency and Ne Recoverymentioning

confidence: 96%

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Effect of dietary supplemental vitamin A concentration on performance, carcass merit, serum metabolites, and lipogenic enzyme activity in yearling beef steers123

Bryant

Wagner

Tatum

et al. 2010

Journal of Animal Science

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A randomized complete block design experiment with 360 single-source black yearling steers (average BW = 316.1 +/- 9.1 kg) fed a 91% concentrate (steam-flaked corn base) diet was conducted to evaluate the effects of supplemental vitamin A (0, 1,103, 2,205, 4,410, or 8,820 IU/kg of dietary DM) on plasma and liver vitamin A and E concentrations, lipogenic enzyme activity, marbling score, and performance of yearling steers. Final BW (586, 580, 590, 585, and 584 kg for 0, 1,103, 2,205, 4,410, and 8,820 IU of supplemental vitamin A/kg of DM, respectively) did not differ (P = 0.39) among treatments. Feed efficiency, ADG, and daily DMI did not differ (P > 0.10) among treatments within each 28-d period or for the overall experiment. From d 57 to slaughter, average DMI (10.33, 10.28, 10.57, 9.75, and 10.22 kg/steer daily for 0, 1,103, 2,205, 4,410, and 8,820 IU of vitamin A/kg of DM, respectively) was less (P < 0.02) by steers receiving 4,410 IU of supplemental vitamin A/kg of dietary DM than for steers in the other treatments. Furthermore, DMI was greater (P = 0.06) for steers receiving 2,205 IU of supplemental vitamin A/kg of dietary DM than for steers receiving 8,820 IU of supplemental vitamin A/kg of DM. Marbling score, HCW, LM area, and 12th-rib fat thickness did not differ (P > 0.10) among treatments. Similarly, the percentage of carcasses grading >or=USDA Choice (62.6, 52.8, 64.0, 58.4, and 58.4% for 0, 1,103, 2,205, 4,410, and 8,820 IU of vitamin A/kg of DM, respectively), Select, or 0.10) among treatments. Except for d 56 (P = 0.050; r = 0.18 for liver retinol), no correlations (P > 0.10) between marbling score and any plasma or liver tissue retinol or alpha-tocopherol concentrations or vitamin A intake were found, and no differences (P > 0.10) in lipogenic enzyme activity were detected among treatments. Taken together with previous and concurrent research, results of this experiment suggest that vitamin A supplementation at a concentration up to twice the NRC recommendation has little effect on performance, marbling, or lipogenic enzyme activity in adipose tissue samples in yearling feedlot steers, and that 2,205 IU of supplemental vitamin A/kg of DM (20,000 IU/steer daily) or less is adequate to meet the vitamin A requirements of finishing beef cattle.

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Section: Intake Feed Efficiency and Ne Recoverymentioning

confidence: 78%

Section: Adgmentioning

confidence: 91%

Section: Intake Feed Efficiency and Ne Recoverymentioning

confidence: 96%

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Effect of dietary supplemental vitamin A concentration on performance, carcass merit, serum metabolites, and lipogenic enzyme activity in yearling beef steers123

Bryant

Wagner

Tatum

et al. 2010

Journal of Animal Science

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“…However, the effects of VA on fat deposition are variable, as many studies report no effect of VA removal on intramuscular fat deposition and no correlation with plasma retinol concentration and marbling scores (Pyatt et al . ; Gorocica‐Buenfil et al . ; Bryant et al .…”

Section: Introductionmentioning

confidence: 99%

“…Gorocica-Buenfil et al (2007a,b) demonstrated that removal of supplemental retinyl palmitate from the diet of beef cattle enhances the desirable partitioning of fat away from subcutaneous fat stores to intramuscular fat stores. However, the effects of VA on fat deposition are variable, as many studies report no effect of VA removal on intramuscular fat deposition and no correlation with plasma retinol concentration and marbling scores (Pyatt et al 2005;Gorocica-Buenfil et al 2008;Bryant et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Effect of supplemental β‐carotene compared to retinyl palmitate on fatty acid profile and expression of mRNA from genes involved in vitamin A metabolism in beef feedlot cattle

Condron

Waddell

Claeys

et al. 2017

Animal Science Journal

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To examine the effects of dietary β-carotene (βC) or retinyl palmitate (RP) on fatty acid (FA) profile and mRNA expression, samples were collected from 24 Angus-cross calves that were allotted to four treatments consisting of RP supplemented at 2200 IU/kg, and synthetic β-carotene (SβC) supplemented at one, five or 10 times RP. Longissimus muscle (LM) cis-9, trans-11 conjugated linoleic acid was greater in RP compared to SβC1X (P = 0.04). The polyunsaturated:saturated FA increased linearly (P = 0.04) in the LM as dietary SβC increased. Expression of βC oxygenase 2 (βCO2), an enzyme that cleaves β-carotene, was greater in the LM for SβC1X compared to RP and decreased linearly as SβC increased (P ≤ 0.02). Peroxisome proliferator activated receptor γ (PPARγ) expression in the LM increased in SβC1X compared to RP (P = 0.03); however, PPARγ and retinoic acid X receptor α (RXRα) expression decreased linearly (P = 0.02) in the LM with increasing SβC. Retinoic acid receptor α (RARα) expression tended (P = 0.10) to decrease linearly in the LM with increased SβC. In conclusion, SβC supplementation increased mRNA expression of some lipogenic genes in the LM, but increasing dietary SβC inhibited their expression and tended to increase polyunsaturated FA.

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Vitamins and Trace Minerals in Ruminants

Wagner,

Edwards-Callaway,

Engle

2023

Veterinary Clinics of North America: Food Animal Practice

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Effects of Vitamin A and Restricted Intake on Performance, Carcass Characteristics, and Serum Retinol Status in Angus × Simmental Feedlot Cattle

Cited by 14 publications

References 19 publications

Effect of dietary supplemental vitamin A concentration on performance, carcass merit, serum metabolites, and lipogenic enzyme activity in yearling beef steers123

Effect of dietary supplemental vitamin A concentration on performance, carcass merit, serum metabolites, and lipogenic enzyme activity in yearling beef steers123

Effect of supplemental β‐carotene compared to retinyl palmitate on fatty acid profile and expression of mRNA from genes involved in vitamin A metabolism in beef feedlot cattle

Vitamins and Trace Minerals in Ruminants

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