Influence of Wheat Straw Pelletizing and Inclusion Rate in Dry Rolled or Steam-flaked Corn-based Finishing Diets on Characteristics of Digestion for Feedlot Cattle
Eight Holstein steers ($216{\pm}48kg$ body weight) fitted with ruminal and duodenal cannulas were used to evaluate effects of wheat straw processing (ground vs pelleted) at two straw inclusion rates (7% and 14%; dry matter basis) in dry rolled or steam-flaked corn-based finishing diets on characteri...
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| Veröffentlicht in: | Asian-australasian journal of animal sciences 2016, Vol.29 (6), p.823-829 |
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| creator | Manriquez, O.M Montano, M.F Calderon, J.F Valdez, J.A Chirino, J.O Gonzalez, V.M Salinas-Chavira, J Mendoza, G.D Soto, S Zinn, R.A |
| description | Eight Holstein steers ($216{\pm}48kg$ body weight) fitted with ruminal and duodenal cannulas were used to evaluate effects of wheat straw processing (ground vs pelleted) at two straw inclusion rates (7% and 14%; dry matter basis) in dry rolled or steam-flaked corn-based finishing diets on characteristics of digestion. The experimental design was a split plot consisting of two simultaneous $4{\times}4$ Latin squares. Increasing straw level reduced ruminal (p0.10). Pelleting straw did not affect ($p{\geq}0.48$) ruminal digestion of OM, NDF, and starch, or microbial efficiency. Ruminal feed N digestion was greater (7.4%; p = 0.02) for ground than for pelleted wheat straw diets. Although ruminal starch digestion was not affected by straw processing, post-ruminal (p |
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The experimental design was a split plot consisting of two simultaneous $4{\times}4$ Latin squares. Increasing straw level reduced ruminal (p<0.01) and total tract (p = 0.03) organic matter (OM) digestion. As expected, increasing wheat straw level from 7% to 14% decreased (p<0.05) ruminal and total tract digestion of OM. Digestion of neutral detergent fiber (NDF) and starch, per se, were not affected (p>0.10) by wheat straw level. Likewise, straw level did not influence ruminal acetate and propionate molar proportions or estimated methane production (p>0.10). Pelleting straw did not affect ($p{\geq}0.48$) ruminal digestion of OM, NDF, and starch, or microbial efficiency. Ruminal feed N digestion was greater (7.4%; p = 0.02) for ground than for pelleted wheat straw diets. Although ruminal starch digestion was not affected by straw processing, post-ruminal (p<0.01), and total-tract starch (p = 0.05) digestion were greater for ground than for pelleted wheat straw diets, resulting in a tendency for increased post-ruminal (p = 0.06) and total tract (p = 0.07) OM digestion. Pelleting wheat straw decreased (p<0.01) ruminal pH, although ruminal volatile fatty acids (VFA) concentration and estimated methane were not affected ($p{\geq}0.27$). Ruminal digestion of OM and starch, and post-ruminal and total tract digestion of OM, starch and N were greater (p<0.01) for steam-flaked than for dry rolled corn-based diets. Ruminal NDF digestion was greater (p = 0.02) for dry rolled than for steam-flaked corn, although total tract NDF digestion was unaffected (p = 0.94). Ruminal microbial efficiency and ruminal degradation of feed N were not affected (p>0.14) by corn processing. However, microbial N flow to the small intestine and ruminal N efficiency (non-ammonia N flow to the small intestine/N intake) were greater (p<0.01) for steam-flaked than for dry rolled corn-based diets. Ruminal pH and total VFA concentration were not affected ($p{\geq}0.16$) by corn processing method. Compared with dry rolled corn, steam-flaked corn-based diets resulted in decreased acetate:propionate molar ratio (p = 0.02). It is concluded that at 7% or 14% straw inclusion rate, changes in physical characteristics of wheat straw brought about by pelleting negatively impact OM digestion of both steam-flaked and dry-rolled corn-based finishing diets. This effect is due to decreased post-ruminal starch digestion. Replacement of ground straw with pelleted straw also may decrease ruminal pH.]]></description><identifier>ISSN: 1011-2367</identifier><identifier>EISSN: 1976-5517</identifier><language>kor</language><ispartof>Asian-australasian journal of animal sciences, 2016, Vol.29 (6), p.823-829</ispartof><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,4021</link.rule.ids></links><search><creatorcontrib>Manriquez, O.M</creatorcontrib><creatorcontrib>Montano, M.F</creatorcontrib><creatorcontrib>Calderon, J.F</creatorcontrib><creatorcontrib>Valdez, J.A</creatorcontrib><creatorcontrib>Chirino, J.O</creatorcontrib><creatorcontrib>Gonzalez, V.M</creatorcontrib><creatorcontrib>Salinas-Chavira, J</creatorcontrib><creatorcontrib>Mendoza, G.D</creatorcontrib><creatorcontrib>Soto, S</creatorcontrib><creatorcontrib>Zinn, R.A</creatorcontrib><title>Influence of Wheat Straw Pelletizing and Inclusion Rate in Dry Rolled or Steam-flaked Corn-based Finishing Diets on Characteristics of Digestion for Feedlot Cattle</title><title>Asian-australasian journal of animal sciences</title><addtitle>Asian-Australasian journal of animal sciences</addtitle><description><![CDATA[Eight Holstein steers ($216{\pm}48kg$ body weight) fitted with ruminal and duodenal cannulas were used to evaluate effects of wheat straw processing (ground vs pelleted) at two straw inclusion rates (7% and 14%; dry matter basis) in dry rolled or steam-flaked corn-based finishing diets on characteristics of digestion. The experimental design was a split plot consisting of two simultaneous $4{\times}4$ Latin squares. Increasing straw level reduced ruminal (p<0.01) and total tract (p = 0.03) organic matter (OM) digestion. As expected, increasing wheat straw level from 7% to 14% decreased (p<0.05) ruminal and total tract digestion of OM. Digestion of neutral detergent fiber (NDF) and starch, per se, were not affected (p>0.10) by wheat straw level. Likewise, straw level did not influence ruminal acetate and propionate molar proportions or estimated methane production (p>0.10). Pelleting straw did not affect ($p{\geq}0.48$) ruminal digestion of OM, NDF, and starch, or microbial efficiency. Ruminal feed N digestion was greater (7.4%; p = 0.02) for ground than for pelleted wheat straw diets. Although ruminal starch digestion was not affected by straw processing, post-ruminal (p<0.01), and total-tract starch (p = 0.05) digestion were greater for ground than for pelleted wheat straw diets, resulting in a tendency for increased post-ruminal (p = 0.06) and total tract (p = 0.07) OM digestion. Pelleting wheat straw decreased (p<0.01) ruminal pH, although ruminal volatile fatty acids (VFA) concentration and estimated methane were not affected ($p{\geq}0.27$). Ruminal digestion of OM and starch, and post-ruminal and total tract digestion of OM, starch and N were greater (p<0.01) for steam-flaked than for dry rolled corn-based diets. Ruminal NDF digestion was greater (p = 0.02) for dry rolled than for steam-flaked corn, although total tract NDF digestion was unaffected (p = 0.94). Ruminal microbial efficiency and ruminal degradation of feed N were not affected (p>0.14) by corn processing. However, microbial N flow to the small intestine and ruminal N efficiency (non-ammonia N flow to the small intestine/N intake) were greater (p<0.01) for steam-flaked than for dry rolled corn-based diets. Ruminal pH and total VFA concentration were not affected ($p{\geq}0.16$) by corn processing method. Compared with dry rolled corn, steam-flaked corn-based diets resulted in decreased acetate:propionate molar ratio (p = 0.02). It is concluded that at 7% or 14% straw inclusion rate, changes in physical characteristics of wheat straw brought about by pelleting negatively impact OM digestion of both steam-flaked and dry-rolled corn-based finishing diets. This effect is due to decreased post-ruminal starch digestion. Replacement of ground straw with pelleted straw also may decrease ruminal pH.]]></description><issn>1011-2367</issn><issn>1976-5517</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>JDI</sourceid><recordid>eNqNjcFOwzAQRCMEEhX0H_bC0VKcEJseUUJE4VBUkDhW22TdrGpsyXaF4Hf4URyJD-C0M9qZN2fFQq60Ek0j9XnWpZSiqpW-LJYx8r5sSl2tpFKL4mftjD2RGwi8gfeJMMFrCvgJL2QtJf5mdwB0I6zdYE-RvYMtJgJ20IUv2PqcGsGH3CL8EMbiMfvWByf2GLPs2XGcZkrHlCJkQDthwCFR4Jh4iPNyxwfKJj9NZvVEo_UJWkzJ0nVxYdBGWv7dq-Kmf3hrH8Vx7u_cGO3u6f55U5VSyVtZa12pOyXr_-Z-AbHeXNw</recordid><startdate>2016</startdate><enddate>2016</enddate><creator>Manriquez, O.M</creator><creator>Montano, M.F</creator><creator>Calderon, J.F</creator><creator>Valdez, J.A</creator><creator>Chirino, J.O</creator><creator>Gonzalez, V.M</creator><creator>Salinas-Chavira, J</creator><creator>Mendoza, G.D</creator><creator>Soto, S</creator><creator>Zinn, R.A</creator><scope>JDI</scope></search><sort><creationdate>2016</creationdate><title>Influence of Wheat Straw Pelletizing and Inclusion Rate in Dry Rolled or Steam-flaked Corn-based Finishing Diets on Characteristics of Digestion for Feedlot Cattle</title><author>Manriquez, O.M ; Montano, M.F ; Calderon, J.F ; Valdez, J.A ; Chirino, J.O ; Gonzalez, V.M ; Salinas-Chavira, J ; Mendoza, G.D ; Soto, S ; Zinn, R.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-kisti_ndsl_JAKO2016141377268613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>kor</language><creationdate>2016</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Manriquez, O.M</creatorcontrib><creatorcontrib>Montano, M.F</creatorcontrib><creatorcontrib>Calderon, J.F</creatorcontrib><creatorcontrib>Valdez, J.A</creatorcontrib><creatorcontrib>Chirino, J.O</creatorcontrib><creatorcontrib>Gonzalez, V.M</creatorcontrib><creatorcontrib>Salinas-Chavira, J</creatorcontrib><creatorcontrib>Mendoza, G.D</creatorcontrib><creatorcontrib>Soto, S</creatorcontrib><creatorcontrib>Zinn, R.A</creatorcontrib><collection>KoreaScience</collection><jtitle>Asian-australasian journal of animal sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Manriquez, O.M</au><au>Montano, M.F</au><au>Calderon, J.F</au><au>Valdez, J.A</au><au>Chirino, J.O</au><au>Gonzalez, V.M</au><au>Salinas-Chavira, J</au><au>Mendoza, G.D</au><au>Soto, S</au><au>Zinn, R.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of Wheat Straw Pelletizing and Inclusion Rate in Dry Rolled or Steam-flaked Corn-based Finishing Diets on Characteristics of Digestion for Feedlot Cattle</atitle><jtitle>Asian-australasian journal of animal sciences</jtitle><addtitle>Asian-Australasian journal of animal sciences</addtitle><date>2016</date><risdate>2016</risdate><volume>29</volume><issue>6</issue><spage>823</spage><epage>829</epage><pages>823-829</pages><issn>1011-2367</issn><eissn>1976-5517</eissn><abstract><![CDATA[Eight Holstein steers ($216{\pm}48kg$ body weight) fitted with ruminal and duodenal cannulas were used to evaluate effects of wheat straw processing (ground vs pelleted) at two straw inclusion rates (7% and 14%; dry matter basis) in dry rolled or steam-flaked corn-based finishing diets on characteristics of digestion. The experimental design was a split plot consisting of two simultaneous $4{\times}4$ Latin squares. Increasing straw level reduced ruminal (p<0.01) and total tract (p = 0.03) organic matter (OM) digestion. As expected, increasing wheat straw level from 7% to 14% decreased (p<0.05) ruminal and total tract digestion of OM. Digestion of neutral detergent fiber (NDF) and starch, per se, were not affected (p>0.10) by wheat straw level. Likewise, straw level did not influence ruminal acetate and propionate molar proportions or estimated methane production (p>0.10). Pelleting straw did not affect ($p{\geq}0.48$) ruminal digestion of OM, NDF, and starch, or microbial efficiency. Ruminal feed N digestion was greater (7.4%; p = 0.02) for ground than for pelleted wheat straw diets. Although ruminal starch digestion was not affected by straw processing, post-ruminal (p<0.01), and total-tract starch (p = 0.05) digestion were greater for ground than for pelleted wheat straw diets, resulting in a tendency for increased post-ruminal (p = 0.06) and total tract (p = 0.07) OM digestion. Pelleting wheat straw decreased (p<0.01) ruminal pH, although ruminal volatile fatty acids (VFA) concentration and estimated methane were not affected ($p{\geq}0.27$). Ruminal digestion of OM and starch, and post-ruminal and total tract digestion of OM, starch and N were greater (p<0.01) for steam-flaked than for dry rolled corn-based diets. Ruminal NDF digestion was greater (p = 0.02) for dry rolled than for steam-flaked corn, although total tract NDF digestion was unaffected (p = 0.94). Ruminal microbial efficiency and ruminal degradation of feed N were not affected (p>0.14) by corn processing. However, microbial N flow to the small intestine and ruminal N efficiency (non-ammonia N flow to the small intestine/N intake) were greater (p<0.01) for steam-flaked than for dry rolled corn-based diets. Ruminal pH and total VFA concentration were not affected ($p{\geq}0.16$) by corn processing method. Compared with dry rolled corn, steam-flaked corn-based diets resulted in decreased acetate:propionate molar ratio (p = 0.02). It is concluded that at 7% or 14% straw inclusion rate, changes in physical characteristics of wheat straw brought about by pelleting negatively impact OM digestion of both steam-flaked and dry-rolled corn-based finishing diets. This effect is due to decreased post-ruminal starch digestion. Replacement of ground straw with pelleted straw also may decrease ruminal pH.]]></abstract><oa>free_for_read</oa></addata></record> |
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| title | Influence of Wheat Straw Pelletizing and Inclusion Rate in Dry Rolled or Steam-flaked Corn-based Finishing Diets on Characteristics of Digestion for Feedlot Cattle |
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