Integrating Lifetime Nutrition: From Cow/Calf to Stocker to Feedlot

Duff, G. C.

doi:10.1016/j.cvfa.2006.11.001

Cited by 3 publications

(3 citation statements)

References 46 publications

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“…Requirements of CP for finishing cattle are between 12.5% and 13% of dry matter [ 71 ]. However, recent studies have suggested greater levels of protein (13.5%) in the diet for finishing cattle, with the use of nitrogen sources such as cottonseed meal, soybean meal, grain coproducts, and urea [ 72 ].…”

Section: Effects Of Catecholamines and Beta-adrenergic Agonists On Th...mentioning

confidence: 99%

Beta-Adrenergic Agonists, Dietary Protein, and Rumen Bacterial Community Interactions in Beef Cattle: A Review

Pfau,

Shepherd,

Martin

et al. 2023

Veterinary Sciences

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Improving beef production efficiency, sustainability, and food security is crucial for meeting the growing global demand for beef while minimizing environmental impact, conserving resources, ensuring economic viability, and promoting animal welfare. Beta-adrenergic agonists and dietary protein have been critical factors in beef cattle production. Beta-agonists enhance growth, improve feed efficiency, and influence carcass composition, while dietary protein provides the necessary nutrients for muscle development and overall health. A balanced approach to their use and incorporation into cattle diets can lead to more efficient and sustainable beef production. However, microbiome technologies play an increasingly important role in beef cattle production, particularly by optimizing rumen fermentation, enhancing nutrient utilization, supporting gut health, and enhancing feed efficiency. Therefore, optimizing rumen fermentation, diet, and growth-promoting technologies has the potential to increase energy capture and improve performance. This review addresses the interactions among beta-adrenergic agonists, protein level and source, and the ruminal microbiome. By adopting innovative technologies, sustainable practices, and responsible management strategies, the beef industry can contribute to a more secure and sustainable food future. Continued research and development in this field can lead to innovative solutions that benefit both producers and the environment.

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Section: Effects Of Catecholamines and Beta-adrenergic Agonists On Th...mentioning

confidence: 99%

Beta-Adrenergic Agonists, Dietary Protein, and Rumen Bacterial Community Interactions in Beef Cattle: A Review

Pfau,

Shepherd,

Martin

et al. 2023

Veterinary Sciences

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“…Suggested protein requirements for finishing cattle range from 12.5% to 13% of diet dry matter [97]. In a recent survey, most consulting feedlot nutritionists recommended a protein level of 13.5% of diet dry matter in finishing rations [98].…”

Section: Proteinmentioning

confidence: 99%

Effects of Catecholamines on Gut Microflora and Potential for Beta- Adrenergic Agonists to Impact Ruminal Fermentation

Walker¹,

Drouillard

2012

TOASJ

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Catecholamines are produced by chromaffin cells of the adrenal medulla and adrenergic and dopaminergic neurons from tyrosine. Catecholamines regulate many vital physiological and metabolic responses because of the location of receptors. The impact of catecholamines is not limited to mammals; direct effects of natural catecholamines on bacteria have been researched extensively to understand the potential impact of these compounds on bacterial infections in humans. Catecholamines have increased the growth of bacteria, virulence-associated factors, and adhesins and increased biofilm formation. Beta-adrenergic agonists are similar in structure and pharmacological properties to natural catecholamines. Beta-adrenergic agonists enhance performance of finishing cattle during the final days prior to harvest. Responses to beta-adrenergic agonists include increased average daily gain, improved feed efficiency, and increased carcass lean. These responses have been observed as a direct effect to the animal; however, a review of the literature suggests that the response to beta-adrenergic agonists also could be mediated by a direct or indirect effect on ruminal microorganisms. Ractopamine hydrochloride increased fermentation in vitro, particularly with increased amounts of degradable intake protein. Inclusion of ractopamine hydrochloride in vivo decreased ruminal concentrations of ammonia and amino acid. The rumen is host to a large population of diverse microorganisms, and a direct impact of a synthetic catecholamine on the microbial population could potentially alter fermentation and the ruminant performance. Reviewing literature on catecholamines and their direct impact on microorganisms could lead to improved decisions regarding dietary supplementation of beta-adrenergic agonists, threreby increasing the growth performance response in ruminants.

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“…Reduction of negative environmental effects such as carbon emissions and contribute to sustainable land use is also important. Genetic selection, animal management, dietary modification, and application of new feeding techniques and use of feed additives [1][2][3][4] can enhance feed conversion and growth rate.…”

Section: Introductionmentioning

confidence: 99%

Impact of feed supplementation with balsam poplar buds on performance of young bulls

Balji

Knický

2022

Teor. prakt. pererab. mâsa (Print)

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There is an urgent need to develop new strategies to minimize the environmental impact of animal production and support sustainability of food production and consumption. Feed additives have been for a long time used in animal nutrition to improve animal growth and performance as well as animal health. Balsam poplar plants (Populus balsamifera) is well known as a rich source of bioactive compounds with positive health effects, and might be used in agriculture as a feed additive for ruminants. The aim of the present study was to evaluate the effect of balsam poplar-based additives on growth and performance of fattening young bulls of Simmental breed. In the present study, we used 4 combinations of extract from balsam poplar buds or its components as a feed additives. The animals were given the supplements at the age of 15 months, 3 months before slaughter. The growth and slaughter characteristics of young bulls were studied. After the first and second month of feeding with dietary supplements, animals from the groups fed 10% balsam poplar buds extract and dry shredded balsam poplar buds had significantly higher live weight compared to the control animals fed a diet without any supplements (P < 0.05). At slaughter, group fed 10% balsam poplar buds extract had significantly higher live weight compared to control. Average daily gain was also greatest in that group. Major sensory as well as physical and chemical parameters were not affected by balsam poplar-based supplements (p > 0.05 for all) and were in line with regulatory meat hygiene requirements.

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Integrating Lifetime Nutrition: From Cow/Calf to Stocker to Feedlot

Cited by 3 publications

References 46 publications

Beta-Adrenergic Agonists, Dietary Protein, and Rumen Bacterial Community Interactions in Beef Cattle: A Review

Beta-Adrenergic Agonists, Dietary Protein, and Rumen Bacterial Community Interactions in Beef Cattle: A Review

Effects of Catecholamines on Gut Microflora and Potential for Beta- Adrenergic Agonists to Impact Ruminal Fermentation

Impact of feed supplementation with balsam poplar buds on performance of young bulls

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