The effect of castration age, method and implant regime on growth and carcass traits of male beef cattle

Cohen, R. D. H.; King, B. D.; Nicholson, Helen; Janzen, E. D.

doi:10.4141/cjas91-039

Cited by 5 publications

(5 citation statements)

References 18 publications

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“…These results agree with previous data in reports on heifers (Cohen et al 1987) and steers (Cohen et al 1991) and support their conclusion that zeranol contributes to increased protein deposition. The results reported in the present study are of added interest.…”

supporting

confidence: 93%

Effect of zeranol on fat deposition and carcass traits in beef heifers

King¹,

Bergen²,

McKinnon³

et al. 1992

Can. J. Anim. Sci.

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supporting

confidence: 93%

Effect of zeranol on fat deposition and carcass traits in beef heifers

King¹,

Bergen²,

McKinnon³

et al. 1992

Can. J. Anim. Sci.

Self Cite

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“…Investigations performed by Bagley et al [6], Cohen et al [ 10] and Gregory and Ford [IS] led to similar results.…”

Section: Endocrine Assaysmentioning

confidence: 53%

Effects of castration on growth and endocrine pattern in the grasscutter (Thryonomys swinderianus, Temminck 1827)

Alogninouwa¹,

Kpodékon²,

Yewadan³

1999

Ann. Zootech.

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“…Conversely, LM area was greater ( P < 0.01) in BUL (101.3 cm 2 ) and INJ (98.1 cm 2 ) than BAN (87.7 cm 2 ). Cohen et al (1991) reported adjusted LM area of bulls was greater compared to surgical castrates and also greater compared with chemically castrated (lactic acid) cattle in 1 yr of a 2-yr study. Longissimus muscle area is highly correlated to carcass weight ( Greiner et al, 2003 ), which is supported by the present study; however, BAN cattle were not implanted with analogues of testosterone as per standard industry practices, which presumably would have increased both HCW and LM area.…”

Section: Resultsmentioning

confidence: 86%

“…In the companion manuscript, Ball et al (2018) reported greater final BW in INJ and BUL compared with BAN. Previous research in chemically (lactic acid) castrated bulls reported that intact bulls had greater HCW compared with chemically castrated cattle ( Cohen et al, 1991 ). Similarities in HCW between INJ and BUL correlates with similarly increased serum testosterone concentrations in INJ and BUL compared with BAN ( Ball et al, 2018 ) and was phenotypically confirmed via noticeably increased male characteristics possessed by both INJ and BUL treatments.…”

Section: Resultsmentioning

confidence: 93%

Carcass traits and consumer acceptability of striploin steaks from band-castrated, intratesticular zinc-injected, or sexually intact beef cattle1

Ball

Kegley

Lawrence

et al. 2018

Translational Animal Science

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One hundred and eighty beef bulls (BW = 337 ± 10.9 kg) were blocked by BW (6 blocks) and assigned randomly to one of three treatments on day 0: 1) INJ; received 1 mL (100 mg Zn) of a Zn solution in each testis, 2) BAN; received blood-restrictive rubber band placed upon the dorsal aspect of the scrotum, and 3) BUL; bulls with testicles remaining intact. Cattle were grouped by weight block in a randomized complete block design (three treatment pens/block and 10 cattle/pen) and harvested by block on three separate dates when blocks reached similar BW and visual subcutaneous fat thickness depth. Striploins were removed from the left carcass sides, vacuum packaged and aged for 14 d, and then frozen at −20 °C. Frozen striploins were sliced into 2.54-cm-thick steaks and remained frozen until analyses. Steaks (n = 3/animal) were used to assess consumer acceptability via consumer taste panel (n = 152 panelists), Warner-Bratzler shear force, percentage cook loss, and cooked color values. Data were analyzed using mixed model procedures; pen was the experimental unit for all dependent variables. Hot carcass weights and LM area were greater (P < 0.01) for the INJ and BUL treatments compared with BAN. Mean yield grade did not differ between treatments (P = 0.12), although BAN carcasses had smaller LM area (P < 0.01) than BUL or INJ carcasses. Percentage of USDA Choice or better carcasses was greater (P < 0.01) for BAN than INJ and BUL treatments. Consumer panelists detected a difference in perceived tenderness; BAN steaks had greater (P = 0.02) tenderness scores than BUL steaks, whereas INJ steaks were intermediate. Panelists rated juiciness of BAN steaks greater (P < 0.01) than either BUL or INJ steaks. Panelists rated beef flavor greater (P = 0.01) for BAN and BUL steaks than INJ steaks. Overall acceptability was greater (P < 0.01) for BAN compared with INJ steaks, whereas BUL steaks were intermediate. Percentage cook loss of striploin steaks (P = 0.47) and Warner-Bratzler shear force values (P = 0.11) did not differ. Cooked color lightness (L*) and redness (a*) values were not affected (P ≥ 0.23) by treatment. Striploin steaks from BAN and BUL treatments had greater (P = 0.02) yellowness values (b*) than INJ steaks. The ratio of red-to-brown (630:580 nm) of cooked striploin steaks was greater (P = 0.05) for INJ than either BAN or BUL treatments. Carcass and palatability outcomes of INJ were more similar to BUL than BAN, suggesting limited efficacy of INJ in mature beef bulls at feedlot entry.

show abstract

The effect of castration age, method and implant regime on growth and carcass traits of male beef cattle

Abstract: 1984-1985 and 1985-1986

Cited by 5 publications

References 18 publications

Effect of zeranol on fat deposition and carcass traits in beef heifers

Effect of zeranol on fat deposition and carcass traits in beef heifers

Effects of castration on growth and endocrine pattern in the grasscutter (Thryonomys swinderianus, Temminck 1827)

Carcass traits and consumer acceptability of striploin steaks from band-castrated, intratesticular zinc-injected, or sexually intact beef cattle1

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