Growth performance and N excretion of double muscled Piemontese bulls fed low protein rations with or without the addition of rumen protected conjugated linoleic acid
Growth performance and N excretion of double muscled Piemontese (DMP) bulls were investigated. Forty-eight DMP bulls (LW 279 kg), divided in 4 groups, housed in 12 pens, were fed 2 rations (TMR) differing for crude protein density (diets HP: CP=14.7% DM; diets LP: CP=11.0% DM) and top dressed with 8...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2010-01-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://www.aspajournal.it/index.php/ijas/article/view/821 |
| _version_ | 1818309745769971712 |
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| author | Giovanni Bittante Alberto Simonetto Franco Tagliapietra Stefano Schiavon Matteo Dal Maso |
| author_facet | Giovanni Bittante Alberto Simonetto Franco Tagliapietra Stefano Schiavon Matteo Dal Maso |
| author_sort | Giovanni Bittante |
| collection | DOAJ |
| description | Growth performance and N excretion of double muscled Piemontese (DMP) bulls were investigated. Forty-eight DMP bulls (LW 279 kg), divided in 4 groups, housed in 12 pens, were fed 2 rations (TMR) differing for crude protein density (diets HP: CP=14.7% DM; diets LP: CP=11.0% DM) and top dressed with 80 g/d of rumen protected CLA (CLA) or with 65 g/d of hydrogenated soybean oil (HSO). DM intake was measured, weekly and on pen basis, from the weights of feed distributed and orts. Bulls were weighted monthly. Trial lasted 334 d. Data were analysed by ANOVA. Over the whole trial, no effects due to CP, to additive (A) or to CPxA were found on final LW (670 kg), average daily gain (1.187 kg/d), DM intake (8.50 kg/d), and on SEUROP (5.2 points) and cold dressing (67.3%). Interaction CPxA affected (P<0.05) feed conversion ratio and N efficiency. With respect to HP, LP reduced (P<0.01) N excretion from 57 to 40 kg /head. On DMP bulls a reduction of 29% of N excretion can be achieved by using low protein TMR without negative consequence on growth performance and carcass traits. |
| first_indexed | 2024-12-13T07:35:03Z |
| format | Article |
| id | doaj.art-4c249a8f4c5d497bbb5276b0d23ada57 |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-12-13T07:35:03Z |
| publishDate | 2010-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-4c249a8f4c5d497bbb5276b0d23ada572022-12-21T23:55:07ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2010-01-0183s17517710.4081/ijas.2009.s3.175Growth performance and N excretion of double muscled Piemontese bulls fed low protein rations with or without the addition of rumen protected conjugated linoleic acidGiovanni BittanteAlberto SimonettoFranco TagliapietraStefano SchiavonMatteo Dal MasoGrowth performance and N excretion of double muscled Piemontese (DMP) bulls were investigated. Forty-eight DMP bulls (LW 279 kg), divided in 4 groups, housed in 12 pens, were fed 2 rations (TMR) differing for crude protein density (diets HP: CP=14.7% DM; diets LP: CP=11.0% DM) and top dressed with 80 g/d of rumen protected CLA (CLA) or with 65 g/d of hydrogenated soybean oil (HSO). DM intake was measured, weekly and on pen basis, from the weights of feed distributed and orts. Bulls were weighted monthly. Trial lasted 334 d. Data were analysed by ANOVA. Over the whole trial, no effects due to CP, to additive (A) or to CPxA were found on final LW (670 kg), average daily gain (1.187 kg/d), DM intake (8.50 kg/d), and on SEUROP (5.2 points) and cold dressing (67.3%). Interaction CPxA affected (P<0.05) feed conversion ratio and N efficiency. With respect to HP, LP reduced (P<0.01) N excretion from 57 to 40 kg /head. On DMP bulls a reduction of 29% of N excretion can be achieved by using low protein TMR without negative consequence on growth performance and carcass traits.http://www.aspajournal.it/index.php/ijas/article/view/821Piemontese, Bulls, Growth performance, Nitrogen excretion. |
| spellingShingle | Giovanni Bittante Alberto Simonetto Franco Tagliapietra Stefano Schiavon Matteo Dal Maso Growth performance and N excretion of double muscled Piemontese bulls fed low protein rations with or without the addition of rumen protected conjugated linoleic acid Italian Journal of Animal Science Piemontese, Bulls, Growth performance, Nitrogen excretion. |
| title | Growth performance and N excretion of double muscled Piemontese bulls fed low protein rations with or without the addition of rumen protected conjugated linoleic acid |
| title_full | Growth performance and N excretion of double muscled Piemontese bulls fed low protein rations with or without the addition of rumen protected conjugated linoleic acid |
| title_fullStr | Growth performance and N excretion of double muscled Piemontese bulls fed low protein rations with or without the addition of rumen protected conjugated linoleic acid |
| title_full_unstemmed | Growth performance and N excretion of double muscled Piemontese bulls fed low protein rations with or without the addition of rumen protected conjugated linoleic acid |
| title_short | Growth performance and N excretion of double muscled Piemontese bulls fed low protein rations with or without the addition of rumen protected conjugated linoleic acid |
| title_sort | growth performance and n excretion of double muscled piemontese bulls fed low protein rations with or without the addition of rumen protected conjugated linoleic acid |
| topic | Piemontese, Bulls, Growth performance, Nitrogen excretion. |
| url | http://www.aspajournal.it/index.php/ijas/article/view/821 |
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