24. Evaluation of international models for predicting total dry matter intake in growing cattle
نویسندگان
چکیده
منابع مشابه
Predicting dry matter intake by growing and finishing beef cattle: evaluation of current methods and equation development.
The NRC (1996) equation for predicting DMI by growing-finishing beef cattle, which is based on dietary NEm concentration and average BW(0.75), has been reported to over- and underpredict DMI depending on dietary and animal conditions. Our objectives were to 1) develop broadly applicable equations for predicting DMI from BW and dietary NEm concentration and 2) evaluate the predictive value of us...
متن کاملPrediction of Dry Matter Intake by Cattle in Feedlot
Dry matter intake (DMI) is the most important variable affecting animal performance (Waldo and Jorgensen, 1981). This is especially the case for beef cattle, considering their economic importance, their complex digestive systems and their particular metabolic functions (Forbes, 2007). Feed intake restrictions can prevent the fulfillment of nutritional requirements. As most of the nutrients in b...
متن کامل1 Dry Matter Intake
Dry matter intake (DMI) is fundamentally important in nutrition because it establishes the amount of nutrients available to an animal for health and production. Actual or accurately estimated DMI is important for the formulation of diets to prevent underfeeding or overfeeding of nutrients and to promote efficient nutrient use. Underfeeding of nutrients restricts production and can affect the he...
متن کاملComparison of techniques for estimation of forage dry matter intake by grazing beef cattle
Undi, M., Wilson, C., Ominski, K. H. and Wittenberg, K. M. 2008. Comparison of techniques for estimation of forage dry matter intake by grazing beef cattle. Can. J. Anim. Sci. 88: 693 701. Four techniques were compared for their ability to estimate forage dry matter intake (DMI) of grazing animals. In the Cage technique, 10 grazing cages were placed within each pasture, and forage inside and ou...
متن کاملAssociation of circulating active and total ghrelin concentrations with dry matter intake, growth, and carcass characteristics of finishing beef cattle.
Ghrelin is a gut peptide that when acylated is thought to stimulate appetite. Circulating ghrelin concentrations could potentially be used as a predictor of DMI in cattle. The objective of this experiment was to determine the association of circulating ghrelin concentrations with DMI and other production traits. Steers and heifers were fed a finishing diet, and individual intake was recorded fo...
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ژورنال
عنوان ژورنال: Animal - science proceedings
سال: 2021
ISSN: 2772-283X
DOI: 10.1016/j.anscip.2021.03.025