Effects of two beta-adrenergic agonists on adipose tissue, plasma hormones and metabolites of Moghani ewes

Mohammadi, M; Abazari, Mohammad Foad; Nourozi, Mohammad

doi:10.1016/j.smallrumres.2005.02.005

Cited by 6 publications

(6 citation statements)

References 19 publications

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“…Para contrarrestar este fenómeno y mejorar el rendimiento magro, se han evaluado distintos compuestos que modifican el metabolismo animal (Beerman et al, 1995;Dikeman, 2003;Sillence, 2004 Mondragón et al, 2010). Esta inconsistencia en los resultados podría deberse a una posible interacción entre el agonista ß-adrenérgico (ß-AA) y el tipo genético del animal (Mohammadi et al, 2006). Se ha visto que existen diferencias en la regulación del metabolismo de los lípidos entre una raza y otra, y el papel de los ß-AA en la reducción de los depósitos de grasa podría variar de acuerdo con la selectividad del receptor (Nourozi et al, 2008).…”

Section: Introductionunclassified

Effect of zilpaterol hydrochloride on the carcass characteristics of Katahdin lamb terminal crosses

et al. 2015

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Zilpaterol hydrochloride (ZH) supplementation (0 vs. 0.15 mg/kg live weight) was evaluated based on the carcass characteristics of Katahdin x Charollais (32 KCh) and Katahdin x Dorper (28 KD) crosses. Lambs were fed a mixed ration with 14% crude protein (CP) and 2.9 Mcal EM/kg DM. Data were analyzed using a completely randomized 2 x 2 factorial design: 2 genotypes (KCh and KD) and 2 ZH levels (0 and 0.15 mg/kg live weight). No interaction was found between ZH and the genotypes. Zilpaterol hydrochloride increased dressing percentage from 52.1 ± 0.3 to 53.7 ± 0.4% (P < 0.001). Animals that received ZH supplementation increased (P < 0.001) the area of their Longissimus dorsi (Ld) by 18.5% and had 7.5% more muscle, 6.0% less bone and 22.4% less fat compared with control lambs (P < 0.05). The breed of the sire had no effect on any of the variables studied. Final pH, fat thickness, conformation and linear carcass measurements did not change with ZH supplementation.

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Section: Introductionunclassified

Effect of zilpaterol hydrochloride on the carcass characteristics of Katahdin lamb terminal crosses

et al. 2015

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“…When we compared the results of recent studies that evaluated different β-AA (zilpaterol hydrochloride, ractopamina hydrochloride, terbutaline, metaprotenerol, isoprotenerol, BRL35135A, BRL26830, etc.) we found that zilpaterol hydrochloride was the best option for small ruminant (Mohammandi et al, 2006;Dickeman, 2007;Nourozi et al, 2008;López et al, 2010;López et al, 2011). In addition, Zilpaterol hydrochloride (Zilmax®, Intervet México, México City), is a β-AA that produces extremely weak pharmacological actions in man, and are so rapidly metabolized and cleared from the animal's body, that it is virtually impossible to regard them as potential causes of drug poisoning in human beings, even after consuming meat products derived from animals medicated with these drugs (Sumano et al, 2002).…”

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confidence: 81%

Meat Quality in Katahdin Lamb Terminal Crosses Treated with Zilpaterol Hydrochloride

Casaya¹,

Rúbio²,

Méndez³

2015

JFR

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The effect of Zilpaterol hydrochloride (ZH) supplementation (0 vs. 0.15 mg/kg live weight) on the meat quality was evaluated in Katahdin x Charollais (32 KCh) and Katahdin x Dorper (28 KD) crosses. Lambs were fed a totally mixed ration with 14% crude protein (CP) and 2.9 Mcal EM/kg DM. Data were analyzed using a completely randomized 2 x 2 factorial design: 2 genotypes (KCh and KD) and 2 ZH levels (0 and 0.15 mg/kg live weight). No interaction was found between ZH and the genotypes. The breed of the sire (BS) did not affect most of the meat traits, only KCh crosses had higher color values (L* = 34.0±0.6 vs. 35.6±0.6; a* = 13.4±0.3 vs. 14.9±0.4; b* = 5.6±0.3 vs. 6.6±0.4; h* = 20.8±0.9 vs. 23.0±0.09; C* = 14.7±0.4 vs. 16.4±0.5), more fat (11.2±0.5 vs. 11.9±0.5) and less protein (21.3±0.1 vs. 21.8±0.0) than KD. ZH meat had lower values (P < 0.001) than meat from the control animals: L* (31.9±0.6 vs. 37.7±0.6), a* (12.9±0.4 vs. 15.5±0.4), h* (15.1±0.9 vs. 28.6±0.9) and C* (13.5±0.5 vs. 17.7±0.8). ZH increased shear force on meat (5.4±0.2 vs. 3.7±0.2 kgf), and produced less fat (9.7±0.5 vs. 12.5±0.5%) and bone (23.2±0.3 vs. 24.6±0.2%), but more muscle (65.8±0.5 vs. 61.2±0.4%). Zilpaterol hydrochloride use in lamb production caused leaner yield and more protein retention, at the expense of reducing meat sensory qualities.

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“…Similar work was done by Plascencia et al (2008) and Avendano-Reyes et al (2006) in feedlot cattle and found enhanced daily gain, carcass yield and dressing percentage by feeding zilpaterol at a rate of 60 mg/day. Zilpaterol has also a positive effect in increasing hot carcass weight and longissimus muscle area when supplemented to cattle (Avendano-Reyes et al, 2006 andMohammadi et al, 2006). Mohammadi et al (2006) indicated that zilpaterol supplementation has a positive effect on growth performance, dressing percentage and carcass fat in lambs in a manner comparable to that of cattle.…”

Section: β-Agonistsmentioning

confidence: 98%

“…Zilpaterol has also a positive effect in increasing hot carcass weight and longissimus muscle area when supplemented to cattle (Avendano-Reyes et al, 2006 andMohammadi et al, 2006). Mohammadi et al (2006) indicated that zilpaterol supplementation has a positive effect on growth performance, dressing percentage and carcass fat in lambs in a manner comparable to that of cattle. Zilpaterol (Zilmax ® ) supplementation for a duration of 20 to 40 days decreased meat tenderness (Claus et al, 2010;Holmer et al, 2009;Strydom et al, 2007;Avendano-Reyes et al, 2006).…”

Section: β-Agonistsmentioning

confidence: 98%

“…β-agonists are analogues of a natural group of compounds called catecholamines and are the recent approaches to improve the meat quality and yield in livestock industry (Strydom et al, 2009;Mohammadi et al, 2006). They tend to decrease the synthesis and storage of fat (lipogenesis) while increasing the mobilization and hydrolysis of fat (lipolysis) (Dunshea et al, 2005).…”

Section: β-Agonistsmentioning

confidence: 99%

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Effect of metabolic modifiers on meat quantity and quality

Gebre¹

2012

Afr. J. Food Sci.

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The inadequacy of food supply due to the population growth together with urbanization, drive a significant demand for animal sources. Consequently, a number of technologies have been developed and are being used commercially to enhance profitability of animal production and to improve their quality. The objective of this paper is to review recent studies on the effects of metabolic modifiers on quantity and quality of meat and their contribution in sustaining food security and improving quality of life. Metabolic modifiers such as β-agonists, anabolic implants, somatotropin, immunocastration, vitamin E, conjugated linoleic acid (CLA) and trace elements have been utilized by different agribusiness to improve meat production and enhance meat quality. These compounds supplement to the animals with feed, as an injection or implant to enhance the rate of gain, the feed utilization efficiency, carcass percentage, shelf-life of meat, improve meat's nutrient content and/or meat palatability. On the other hand, some metabolic modifiers are either not approved or banned from use due to negative health effects to the consumer. There is a consistent research report for the approved technologies enhancing protein synthesis and muscle deposition, while decreasing fat synthesis and deposition, when they are applied in the recommended dosage. Therefore, we believe that utilizing available technologies and methodologies in reference to the mentioned materials will help in improving meat quality and thereby increase productivity of the livestock resource and hence, improve food security.

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Effects of two beta-adrenergic agonists on adipose tissue, plasma hormones and metabolites of Moghani ewes

Cited by 6 publications

References 19 publications

Effect of zilpaterol hydrochloride on the carcass characteristics of Katahdin lamb terminal crosses

Effect of zilpaterol hydrochloride on the carcass characteristics of Katahdin lamb terminal crosses

Meat Quality in Katahdin Lamb Terminal Crosses Treated with Zilpaterol Hydrochloride

Effect of metabolic modifiers on meat quantity and quality

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