Matches in SemOpenAlex for { <https://semopenalex.org/work/W567320265> ?p ?o ?g. }
- W567320265 abstract "The aim of the present work was to investigate the effects of replacing grain concentrates with roots and potatoes in dairy cow diets based upon large amounts of grass/alfalfa silage. The emphasis was on the possible improvement of microbial protein synthesis and nitrogen balance. Alfalfa dominated silage has a large excess of ruminally degradable protein that must be balanced with feed carbohydrates to avoid urinary nitrogen losses. The effects on ruminal fermentation pattern, intake and production were also studied. The thesis is based on two batch culture in vitro experiments and three animal experiments. The in vitro experiments compared fodder beets, barley/oats and raw, boiled or frozen potatoes as supplements to a silage diet incubated with rumen fluid from cows fed different diets. With respect to amounts fermented during 5 h incubation, supplements were ranked (P barley/oats > raw potatoes = frozen potatoes = unsupplemented silage. Substrates were numerically ranked in the same order with respect to microbial protein production, but due to larger variation they could only be divided into two groups, where fodder beets, boiled potatoes and barley/oats gave microbial yields not different from each other, but higher than for raw potatoes, frozen potatoes or unsupplemented silage. Butyrate proportion was little affected by incubation substrate but fodder beets fed to rumen fluid donor cows increased butyrate molar proportion in vitro from 10.7 to 13.0%. A change-over design experiment compared barley supplementation with fodder beet and potato supplementation of a silage diet for lactating cows. The fodder beet/potato diet lowered ad libitum silage intake by 0.9 kg DM/d and milk yield decreased correspondingly by 1.7 to 2.3 kg/d. Microbial protein production and nitrogen balance were not increased by the fodder beet supplementation, but a part of N excretion was redirected from urine to feces. Fodder beets tended to decrease the ratio lipogenic/glucogenic VFA, by increasing propionate and butyrate at the expense of acetate. In an intake experiment, most of the cows consumed the maximum allowance of fodder beets (4.6 kg DM/d) while there was a huge variation in the potato intake. A more synchronous feeding of degradable protein and readily available carbohydrates lowered the urinary nitrogen loss and increased allantoin excretion numerically but not significantly. A close correlation (R2 = 0.94) was found between total urinary N excretion and the ratio urea/creatinine in urine, which implies that spot sampling of urine may be a way to facilitate N balance measurements in lactating cows. In conclusion, a full replacement of grain by roots and potatoes can be done and the effects will be lowered urinary N losses but also a reduction in silage consumption and hence also milk production." @default.
- W567320265 created "2016-06-24" @default.
- W567320265 creator A5091630541 @default.
- W567320265 date "2003-09-01" @default.
- W567320265 modified "2023-09-27" @default.
- W567320265 title "Milk production from leguminous forage, roots and potatoes" @default.
- W567320265 cites W121971216 @default.
- W567320265 cites W1480903575 @default.
- W567320265 cites W1492669159 @default.
- W567320265 cites W1512719169 @default.
- W567320265 cites W1544024509 @default.
- W567320265 cites W1552469646 @default.
- W567320265 cites W1595105750 @default.
- W567320265 cites W172589307 @default.
- W567320265 cites W1822425348 @default.
- W567320265 cites W1830407128 @default.
- W567320265 cites W1844540936 @default.
- W567320265 cites W1964287759 @default.
- W567320265 cites W1965839401 @default.
- W567320265 cites W1969726108 @default.
- W567320265 cites W1969797855 @default.
- W567320265 cites W1974470250 @default.
- W567320265 cites W1977143384 @default.
- W567320265 cites W1978513573 @default.
- W567320265 cites W1986803863 @default.
- W567320265 cites W1989278687 @default.
- W567320265 cites W1989351152 @default.
- W567320265 cites W1991995635 @default.
- W567320265 cites W1992486440 @default.
- W567320265 cites W1997087247 @default.
- W567320265 cites W1999762248 @default.
- W567320265 cites W1999943923 @default.
- W567320265 cites W2002462576 @default.
- W567320265 cites W2012212639 @default.
- W567320265 cites W2013519476 @default.
- W567320265 cites W2013665902 @default.
- W567320265 cites W2015439983 @default.
- W567320265 cites W2017662902 @default.
- W567320265 cites W2017899805 @default.
- W567320265 cites W2018040072 @default.
- W567320265 cites W2019196217 @default.
- W567320265 cites W2024039434 @default.
- W567320265 cites W2026693859 @default.
- W567320265 cites W2030047000 @default.
- W567320265 cites W2030663992 @default.
- W567320265 cites W203187160 @default.
- W567320265 cites W2032668746 @default.
- W567320265 cites W2035107210 @default.
- W567320265 cites W2035580432 @default.
- W567320265 cites W2036393844 @default.
- W567320265 cites W2051592640 @default.
- W567320265 cites W2052078471 @default.
- W567320265 cites W2055806944 @default.
- W567320265 cites W2057187077 @default.
- W567320265 cites W2058391241 @default.
- W567320265 cites W2059432756 @default.
- W567320265 cites W2061266658 @default.
- W567320265 cites W2062639535 @default.
- W567320265 cites W2062672940 @default.
- W567320265 cites W2070876500 @default.
- W567320265 cites W2070952258 @default.
- W567320265 cites W2075937500 @default.
- W567320265 cites W2081107896 @default.
- W567320265 cites W2084606293 @default.
- W567320265 cites W2088245428 @default.
- W567320265 cites W2091729387 @default.
- W567320265 cites W2096632532 @default.
- W567320265 cites W2096898504 @default.
- W567320265 cites W2100842293 @default.
- W567320265 cites W2115381714 @default.
- W567320265 cites W2135807498 @default.
- W567320265 cites W2139328400 @default.
- W567320265 cites W2140400928 @default.
- W567320265 cites W2144141714 @default.
- W567320265 cites W2149625027 @default.
- W567320265 cites W2152629182 @default.
- W567320265 cites W2156460854 @default.
- W567320265 cites W2159929507 @default.
- W567320265 cites W2233374741 @default.
- W567320265 cites W2258635300 @default.
- W567320265 cites W2261945294 @default.
- W567320265 cites W2269975817 @default.
- W567320265 cites W2273990572 @default.
- W567320265 cites W2292871041 @default.
- W567320265 cites W2316151688 @default.
- W567320265 cites W2413827119 @default.
- W567320265 cites W2510898848 @default.
- W567320265 cites W2530261028 @default.
- W567320265 cites W2778987158 @default.
- W567320265 cites W2781530284 @default.
- W567320265 cites W2899370798 @default.
- W567320265 cites W3047041998 @default.
- W567320265 cites W71750314 @default.
- W567320265 cites W2526173670 @default.
- W567320265 hasPublicationYear "2003" @default.
- W567320265 type Work @default.
- W567320265 sameAs 567320265 @default.
- W567320265 citedByCount "1" @default.
- W567320265 countsByYear W5673202652014 @default.
- W567320265 crossrefType "dissertation" @default.