Effects of pre-slaughter administration of oral calcium gel to beef cattle on tenderness

Duckett, S. K.; Andrae, John; Pritchard, G T; Skow, T. A.; Cuvala, S. L.; Thorngate, J.H.; Sánchez, William

doi:10.4141/a00-022

Cited by 7 publications

(7 citation statements)

References 16 publications

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“…Increasing LM Ca through dietary means has (Goff and Horst 1993). In fact, orally administering Ca propionate 3 to 6 h before slaughter has been demonstrated to increase LM Ca and calpain activity, and improve tenderness in beef aged 4 and 7 d, when compared with LM from cattle not drenched with Ca propionate (Duckett et al, 2001). The fact that LM pH and Ca were not altered by DCAD in the present study suggests that the body is very good at maintaining homeostasis in regard to tissue pH and ion concentrations.…”

Section: Resultsmentioning

confidence: 99%

Effect of decreasing dietary cation anion difference on feedlot performance, carcass characteristics, and beef tenderness1,2

Schoonmaker

Korn

Condron

et al. 2013

Journal of Animal Science

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The manipulation of acid-base balance has been extensively investigated as a means of manipulating Ca homeostasis and managing milk fever in dairy cows. A low dietary cation anion difference (DCAD) increases urinary Ca, blood-ionized Ca, and responsiveness to Ca-homeostatic hormones. Very little attention has been focused on the possibility of using a low dietary DCAD to increase muscle Ca availability, calpain activity, and meat tenderness of beef cattle. Thus, 90 Angus × Simmental crossbred steers were allotted by weight (590.1 ± 2.4 kg) and breed composition (% Simmental) to 3 treatments (6 pens/treatment, 5 steers/pen) to evaluate the effects of DCAD on beef tenderness. Treatments were initiated 2 wk before slaughter and consisted of 3 DCAD (mEq/100 g) treatments: -16, 0, and +16. Basal diets (DM basis) were 62 to 64% corn, 6 to 9% soybean meal, and 20% corn silage, and were formulated to contain similar concentrations of protein, energy (NEm; NEg), and minerals, with the exception of sodium and chlorine. A commercial chloride ion supplement (PASTURChlor, West Central, Ralston, IA) was added to diets to decrease DCAD and sodium bicarbonate was added to diets to increase DCAD. Performance before initiation of the study did not differ among treatments (P > 0.22). Urine pH did not differ at the initiation of the study (P > 0.57), but did increase at a decreasing rate on d 7 (6.37, 7.69, 8.13) and d 14 (5.68, 7.66, 8.03) of the study as DCAD increased from -16 to 0 to +16, respectively (quadratic, P < 0.02). Gain and gain:feed responded quadratically to DCAD (P < 0.01), increasing from -16 to 0 DCAD and decreasing from 0 to +16 DCAD. Hot carcass weight, dressing percent, fat thickness, LM area, yield grade, marbling score, quality grade distribution, 48 h muscle pH, and Ca content of muscle did not differ among treatments (P > 0.16). In addition, DCAD did not affect Warner-Bratzler shear force among treatments after 7 and 21 d of aging (P > 0.23). Although urine pH was decreased by feeding a -16 DCAD diet, Ca influx into the LM and beef tenderness were not affected by altering the DCAD in finishing beef cattle diets.

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Section: Resultsmentioning

confidence: 99%

Effect of decreasing dietary cation anion difference on feedlot performance, carcass characteristics, and beef tenderness1,2

Schoonmaker

Korn

Condron

et al. 2013

Journal of Animal Science

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“…Varner and Woods (1972) observed no differences in carcass characteristics when steers were fed diets containing 0.20, 0.31, 0.42, or 0.53% (diet DM) Ca. In addition, Duckett et al (2001) and Spears et al (2003) observed no differences in carcass traits when steers were administered Ca gel 3 to 6 h before slaughter or Ca propionate 7 d before slaughter, respectively. The lack of differences in carcass measurements may be attributed to adequate storage of Ca in bone of research 1 ZH (Merck Animal Health, Millsboro, DE) was supplemented at a rate of 8.33 mg/kg diet DM for 25 d followed by a 3-d withdrawal before harvest.…”

Section: Resultsmentioning

confidence: 93%

“…In addition, percentage moisture lost as purge and during cooking was not affected by Ca depletion (P > 0.05). Duckett et al (2001) administered Ca gel to steers 3 to 6 h before slaughter and analyzed WBSF values at 2, 4, 7, 14, and 28 d postmortem. The authors observed lower WBSF values on d 4 and 7 of postmortem aging (P < 0.05), but in agreement with our results, no difference in WBSF values were detected at 14 d postmortem (P > 0.05) between steaks from treated and untreated cattle.…”

Section: Resultsmentioning

confidence: 99%

Manipulation of dietary calcium concentration to potentiate changes in tenderness of beef from heifers supplemented with zilpaterol hydrochloride1

Bibber-Krueger

Miller

Drouillard

2015

Journal of Animal Science

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Dietary Ca concentrations were manipulated during supplementation of zilpaterol hydrochloride (ZH) to evaluate impact on feedlot performance, carcass characteristics, and beef tenderness using 96 heifers (BW 392 kg ± 3.2). We hypothesized that temporary depletion followed by repletion of dietary Ca before harvest would increase intracellular Ca concentrations, thus stimulating postmortem activity of Ca-dependent proteases to effect changes in tenderness. Heifers were stratified by initial BW and randomly assigned, within strata (block), to treatments consisting of a finishing diet in which Ca was added in the form of limestone (+Ca) or removed (-Ca) during ZH supplementation. Cattle were fed a common diet, including limestone, before ZH supplementation, and 28 d before slaughter, ZH was added to the diet with and without supplemental Ca. Calcium content of the diets during ZH supplementation was 0.74% or 0.19% (diet DM) for +Ca and -Ca, respectively. Zilpaterol hydrochloride was fed for 25 d then removed from the diet 3 d before harvest. The final 3 d before harvest, all cattle were fed Ca at 0.74% of diet DM. Heifers were housed in concrete-surfaced pens with 8 animals/pen (6 pens/treatment). At the end of the finishing phase, animals were weighed and transported to an abattoir in Holcomb, KS. Severity of liver abscesses and HCW were collected the day of harvest, and after 48 h of refrigeration, USDA yield and quality grades, KPH, LM area, and 12th-rib subcutaneous fat thickness were determined. Boneless loin sections were also collected for Warner-Bratzler shear force determination. Removal of Ca did not affect Warner-Bratzler shear force values (P = 0.64). In addition, ADG, DMI, final BW, and feed efficiency were unaffected by treatment (P > 0.05). Carcass measurements also were unaffected by the temporary decrease in dietary Ca (P > 0.05). In conclusion, temporary depletion of dietary Ca during ZH supplementation did not alter beef tenderness, live animal performance, or carcass measurements.

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“…Significant hypocalcemia was also reported by Shorthose and Shaw (1977) in slaughtered sheep. This might be due utilization of Ca ions by calpain proteolytic system (Duckett et al, 2001). Calcium is also utilized to maintain heart-beat and blood clotting mechanism (Kaneko et al, 2008).…”

Section: Resultsmentioning

confidence: 99%

Study on the alteration of bubaline blood biochemical composition owing to slaughter

Guha¹

2012

Afr. J. Biotechnol.

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Bubaline blood biochemistry as affected by slaughter was the agenda for this work. Blood samples were collected from 30 buffaloes from abattoirs before and at slaughter. After biochemical and statistical analysis (mean was compared with t-test), it was observed that the albumin, lactate dehydrogenase and creatine kinase increased (p < 0.05), while globulin, urea nitrogen and creatinine decreased (p < 0.05) significantly. Significant (p < 0.01) increase in glucose and cholesterol, and marginal variation in concentration of total protein and biliurubin were observed. The macro-minerals of the blood were observed to have decreased significantly (p < 0.01) at slaughter. Sodium and chloride decreased, potassium was observed to have increased highly significantly (p < 0.01) due to slaughter. Slaughter induced changes in blood biochemical profile in buffaloes as reported here are of significance in commercial biomedical use of this connective tissue.

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Effects of pre-slaughter administration of oral calcium gel to beef cattle on tenderness

Cited by 7 publications

References 16 publications

Effect of decreasing dietary cation anion difference on feedlot performance, carcass characteristics, and beef tenderness1,2

Effect of decreasing dietary cation anion difference on feedlot performance, carcass characteristics, and beef tenderness1,2

Manipulation of dietary calcium concentration to potentiate changes in tenderness of beef from heifers supplemented with zilpaterol hydrochloride1

Study on the alteration of bubaline blood biochemical composition owing to slaughter

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