Nutritive evaluation of two native north Texas legumes (Strophostyles) for goats

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Title: Nutritive evaluation of two native north Texas legumes (Strophostyles) for goats
Author: Foster, Jamie Lee
Abstract: The objective of this study was to determine effects of supplementing coastal bermudagrass (Cynodon dactylon ; CBG ) hay with Strophostyles helvula (98 g kg -1 crude protein (CP ) , 476 g kg -1 neutral detergent fiber (NDF ) ) , S . leiosperma (117 g kg -1 CP , 497 g kg -1 NDF ) , or cottonseed meal (506 g kg -1 CP , 352 g kg -1 NDF ; CSM ) upon intake of CBG hay (127 g kg -1 CP , 691 g kg -1 NDF ) and apparent digestibility of dietary organic matter (OM ) , NDF , and true digestibility of CP . Six Boer -Spanish goats (46 .22 + - 3 .99 Kg ) were fed CBG plus S . helvula , S . leiosperma , or CSM at 0 .34 and 0 .68 % of BW in a 6*6 Latin square with 3*2 factorial arrangement of treatments . The CBG was fed ad libitum , and the legumes /CSM were fed in two equal daily feedings during a 7 -d adjustment period and 7 -d collection period in metabolism crates . Feces were collected every 24 -h , and CBG , legumes /CSM , and fecal samples were analyzed for OM , NDF , and CP . There were no supplement type*amount interactions (P > 0 .05 ) . Supplement type did not affect OM digestibility (P = 0 .21 ) , but OM digestibility increased 6 .4 % (P = 0 .05 ) at the 0 .68 % versus 0 .34 % level of supplementation with the legumes or CSM . Supplementation with CSM and S . leiosperma improved NDF digestibility 7 % versus supplementation with S . helvula (P = 0 .02 ) ; and as supplement amount increased NDF digestibility by 5 .5 % (P = 0 .02 ) . The diet supplemented with CSM had the greatest CP digestibility , and S . helvula CP was 6 % less digestible than S . leiosperma (P = 0 .02 ) . As supplement amount increased , CP digestibility increased 7 % (P = 0 .01 ) . Intake of DM , OM , and NDF of CBG was unaffected (P = 0 .56 ) by supplementation with CSM , S . helvula , and S . leiosperma , but total diet NDF intake of diets supplemented with CSM and S . helvula was 10 .5 % less than diet supplemented with S . leiosperma (P = 0 .01 ) . Considering digestibility and intake , CSM and S . leiosperma were the best supplements fed in this experiment . Strophostyles leiosperma is recommended as use for diet supplementation for goats when CBG hay basal diet is fed .
URI: http : / /hdl .handle .net /1969 .1 /1256
Date: 2004-11-15

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Nutritive evaluation of two native north Texas legumes (Strophostyles) for goats. Available electronically from http : / /hdl .handle .net /1969 .1 /1256 .

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