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Exogenous enzymes improve performance and carcass traits of feedlot cattle fed high-grain diet

Mikael Neumann et al · Sociedade Brasileira de Zootecnia · 2018

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Author / responsible party
Mikael Neumann et al
Publisher
Sociedade Brasileira de Zootecnia
Year
2018
ISSN
1806-9290
ISSN
1806-9290
Language
English
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A survey of dairy calf management practices in some producing regions in Brazil

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ABSTRACT The objective of this study was to evaluate the effects of supplementation of two different enzymatic complexes, fibrolytic (NSPases) or amylolytic (EXP3066) enzymes, on growth performance, digestibility, behavior, and carcass characteristics of feedlot cattle. Thirty-six ½ Angus yearling bulls with an average initial weight of 391±5.0 kg were used in this experiment blocked by weight in a completely randomized design divided in three treatments: control, NSPases, and EXP3066. The basal diet was composed of 85% whole corn grain and 15% nucleus. NSPases increased average daily gain on days 63 and 84, and gain:feed ratio on days 42, 63, and 84. Total carcass weight and carcass daily gain were improved by 4.8% and up to 6.0% with EXP3066 and NSPases supplementations, respectively. The group that received NSPases supplementation showed even greater carcass feed efficiency when compared with animals in the control group. There was an increase in apparent dry matter digestibility and a decrease of fecal whole grain residual percentage with enzyme supplementation. Enzyme supplementation affected hot carcass weight and EXP3066 provided greater values for ribeye area and marbling compared with control. Exogenous enzymes improve performance and carcass traits in feedlot cattle fed high-grain diet.

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APA 7

al, M. N. E. (2018). Exogenous enzymes improve performance and carcass traits of feedlot cattle fed high-grain diet. https://doi.org/10.1590/rbz4720170308

MLA

al, Mikael Neumann et. "Exogenous enzymes improve performance and carcass traits of feedlot cattle fed high-grain diet." 2018. https://doi.org/10.1590/rbz4720170308.

Chicago

al, Mikael Neumann et. 2018. "Exogenous enzymes improve performance and carcass traits of feedlot cattle fed high-grain diet.". https://doi.org/10.1590/rbz4720170308.

Harvard

al, M. N. E. 2018, Exogenous enzymes improve performance and carcass traits of feedlot cattle fed high-grain diet, Sociedade Brasileira de Zootecnia, available at: https://doi.org/10.1590/rbz4720170308 [Accessed 8 Aug. 2026].

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Title
Exogenous enzymes improve performance and carcass traits of feedlot cattle fed high-grain diet
Author / contributors
Mikael Neumann et al
Publisher
Sociedade Brasileira de Zootecnia
Publication year
2018
ISSN
1806-9290
ISSN
1806-9290
Language
English

Subjects

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amylase; corn; high-energy diet; non-starch polysaccharides; xylanase
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