scholarly journals Comparative evaluation of supplemental zilpaterol hydrochloride sources on growth performance, dietary energetics and carcass characteristics of finishing lambs

2019 ◽  
Vol 32 (2) ◽  
pp. 209-216 ◽  
Author(s):  
A. Rivera-Villegas ◽  
A. Estrada-Angulo ◽  
B. I. Castro-Pérez ◽  
J. D. Urías-Estrada ◽  
F. G. Ríos-Rincón ◽  
...  
Keyword(s):  
Growth Performance ◽  
Comparative Evaluation ◽  
Carcass Characteristics ◽  
Zilpaterol Hydrochloride

scholarly journals Effects of Dietary Zilpaterol Hydrochloride on Growth Performance, Carcass Characteristics, and Serum Compositions of Hanwoo Bulls

2016 ◽  
Vol 61 (1) ◽  
pp. 109-114
Author(s):  
Jong Kyoo Kim ◽  
Ki Yong Chung ◽  
Hyeong Cheol Kim ◽  
Eun Mi Lee ◽  
Sun Sik Chang ◽  
...  
Keyword(s):  
Growth Performance ◽  
Carcass Characteristics ◽  
Zilpaterol Hydrochloride

Effects of zilpaterol hydrochloride on growth performance, carcass characteristics, and wholesale cut yield of hair-breed ewe lambs consuming feedlot diets under moderate environmental conditions

2011 ◽  
Vol 89 (12) ◽  
pp. 4188-4194 ◽  
Author(s):  
L. Avendaño-Reyes ◽  
U. Macías-Cruz ◽  
F. D. Álvarez-Valenzuela ◽  
E. Águila-Tepato ◽  
N. G. Torrentera-Olivera ◽  
...  
Keyword(s):  
Growth Performance ◽  
Environmental Conditions ◽  
Carcass Characteristics ◽  
Ewe Lambs ◽  
Zilpaterol Hydrochloride

Effect of zilpaterol hydrochloride on growth performance and carcass characteristics of wether goats

2014 ◽  
Vol 117 (2-3) ◽  
pp. 142-150 ◽  
Author(s):  
M.A. López-Carlos ◽  
J.I. Aguilera-Soto ◽  
R.G. Ramírez ◽  
H. Rodríguez ◽  
O. Carrillo-Muro ◽  
...  
Keyword(s):  
Growth Performance ◽  
Carcass Characteristics ◽  
Zilpaterol Hydrochloride

667 Zilpaterol hydrochloride improved growth performance and some carcass characteristics in finishing ram lambs in feedlot

2017 ◽  
Vol 95 (suppl_4) ◽  
pp. 326-327
Author(s):  
J. Cayetano de Jesús ◽  
R. Rojo Rubio ◽  
H. Lee-Rangel ◽  
L. Avendaño-Reyes ◽  
U. Macias-Cruz ◽  
...  
Keyword(s):  
Growth Performance ◽  
Carcass Characteristics ◽  
Zilpaterol Hydrochloride ◽  
Ram Lambs

scholarly journals Effects of zilpaterol hydrochloride and zinc methionine on growth performance and carcass characteristics of beef bulls

2015 ◽  
Vol 95 (4) ◽  
pp. 609-615 ◽  
Author(s):  
Miguel A. Rodríguez-Gaxiola ◽  
Ignacio A. Domínguez-Vara ◽  
Rubén Barajas-Cruz ◽  
María A. Mariezcurrema-Berasain ◽  
José L. Bórquez-Gastelum ◽  
...  
Keyword(s):  
Growth Performance ◽  
Crude Protein ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Backfat Thickness ◽  
Longissimus Dorsi ◽  
Carcass Yield ◽  
Zilpaterol Hydrochloride ◽  
Zinc Methionine ◽  
Beef Bulls

Rodríguez-Gaxiola, M. A., Domínguez-Vara, I. A., Barajas-Cruz, R., Mariezcurrema-Berasain, M. A., Bórquez-Gastelum, J. L. and Cervantes-Pacheco, B. J. 2015. Effects of zilpaterol hydrochloride and zinc methionine on growth performance and carcass characteristics of beef bulls. Can. J. Anim. Sci. 95: 609–615. Sixty beef bulls with a body weight (BW) of 314.7±16.2 kg were used to evaluate the effects of zilpaterol hydrochloride (ZH) and zinc methionine (ZM) on growth performance and carcass characteristics. The experimental design was a randomized complete block, with a factorial 2×2 arrangement of treatments (ZH: 0 and 0.15 mg kg−1 BW; ZM: 0 and 80 mg kg−1 dry matter). The ZH increased (P<0.05) the final BW, average daily gain, feed conversion, carcass yield and longissimus dorsi area. Bulls fed ZH plus ZM had less (P<0.01) backfat thickness and intramuscular fat (IMF) compared with those fed ZH or ZM alone. The ZH increased (P<0.02) the meat crude protein content and cooking loss. It is therefore concluded that ZH increases growth performance, carcass yield, longissimus dorsi area, and meat crude protein. The interaction of ZM and ZH did not present additional advantages. The reason for the reduction in backfat thickness and IMF by ZH plus ZM is unclear, and implies that our knowledge of β-agonistic adrenergic substances and their interactions with minerals is incomplete.

scholarly journals Effects of non-steroidal growth implant and dietary zilpaterol hydrochloride on growth and carcass characteristics of feedlot lambs

2018 ◽  
Vol 48 (4) ◽  
pp. 601-608
Author(s):  
E.C. Webb ◽  
J Allen ◽  
S.D. Morris
Keyword(s):  
Growth Performance ◽  
South African ◽  
Meat Quality ◽  
Carcass Characteristics ◽  
Feed Additives ◽  
Control Group ◽  
Feed Supplementation ◽  
Treatment Groups ◽  
Zilpaterol Hydrochloride ◽  
Growth Implant

The effects of steroidal growth implants alone or in combination with β-adrenergic agonist feed additives have not been studied thoroughly in mutton sheep in South African feedlot conditions. This study investigated the effects of a non-steroidal growth implant zeranol (Ralgro®), alone or in combination with zilpaterol hydrochloride (Zilmax®), on growth performance, carcass characteristics, and selected meat quality traits in 160 SA Mutton Merino ram lambs fed in a commercial feedlot. The experimental design consisted of two Ralgro treatment groups x two Zilmax treatments x two Zilmax feeding periods x 20 animals per treatment group. Lambs were randomly allocated to eight treatment groups, of which one half were implanted with Ralgro after arrival, followed by feed supplementation with Zilmax at two Zilmax feeding periods during the finisher phase, compared with negative control treatments (e.g. no Ralgro or Zilmax; Ralgro + no Zilmax; or no Ralgro + Zilmax). All lambs were fed the grower ration traditionally used by the commercial feedlot, which contained 16.89% crude protein (CP) and 2.94 Mcal/kg dry matter (DM). Zilmax was supplemented in the feed at 40 mg per animal per day and fed for 18 days or 25 days, plus three days withdrawal. Lambs that did not receive the Zilmax treatment were fed the basal diet without Zilmax feed supplementation. Ralgro significantly increased average daily gains (ADG) and cold carcass mass (CCM) of lambs. Lambs supplemented with Zilmax during the finisher phase had higher ADG, greater CCM and increased dressing percentage by ca.1.1% compared with those in the control group. Lambs fed Zilmax for 25 days had higher CCM than those fed for 18 days. The duration of the Zilmax treatment also decreased hide weight, fat thickness and shear force values (tenderness). Zilmax increased ADG and CCM in lambs, particularly if combined with Ralgro implants during the growing phase. The results from this study indicate that the combination of Ralgro implants with Zilmax feed supplementation during the finisher phase had additive effects and increased ADG and CCM of feedlot lambs.Keywords: Growth performance, meat quality, South African Mutton Merino, sheep, Ralgro®, Zilmax®

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