Energy supplementation as strategy of pasture management
نویسندگان
چکیده
This study evaluated the effect of increased energy via supplementation on performance, ingestive behavior, nutrient digestibility, and nitrogen metabolism grazing heifers fed tropical forage in rainy-dry transition season. Treatments consisted mineral ad libitum (control) multiple supplements formulated to provide different levels same amount protein (300 g CP animal d-1) were denominated as low (LE; 340 TDN d-1), medium (ME; 780 high (HE; 1220 energy. Animals supplemented with ME, HE had a greater average daily gain relation control treatment, an increase 41 46%, respectively. Greater values for total apparent digestibility neutral detergent fiber observed treatment HE. Lesser urinary urea N treatments. Our results define use supplement tool pasture management. If purpose production system is enhance intake, option supply less levels. In contrast, if stocking rate, should be used.
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ژورنال
عنوان ژورنال: Acta Scientiarum. Animal Sciences
سال: 2022
ISSN: ['1806-2636', '1807-8672']
DOI: https://doi.org/10.4025/actascianimsci.v44i1.55761