Feed forms, feeding systems and metabolizable energy levels in diets for brown-egg laying pullets
ABSTRACT: Evaluated different feed forms (FF), (mash or pellets), feeding systems (FS) (ad libitum or controlled) and metabolizable energy levels (ME) (2,900 kcal/kg or 2,750 kcal/kg) in rearing period 1 (7 to 12 weeks) and 2 (13 to 17 weeks). Utilized 400 brown-egg laying pullets a completely rando...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal de Santa Maria
2024-12-01
|
| Series: | Ciência Rural |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782025000300653&lng=en&tlng=en |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846142605444775936 |
|---|---|
| author | Flavio Manabu Yuri Amanda D’avila Verardi Aline Félix Schneider Bedin Jaqueline Kunhen Mayer Clóvis Eliseu Gewehr |
| author_facet | Flavio Manabu Yuri Amanda D’avila Verardi Aline Félix Schneider Bedin Jaqueline Kunhen Mayer Clóvis Eliseu Gewehr |
| author_sort | Flavio Manabu Yuri |
| collection | DOAJ |
| description | ABSTRACT: Evaluated different feed forms (FF), (mash or pellets), feeding systems (FS) (ad libitum or controlled) and metabolizable energy levels (ME) (2,900 kcal/kg or 2,750 kcal/kg) in rearing period 1 (7 to 12 weeks) and 2 (13 to 17 weeks). Utilized 400 brown-egg laying pullets a completely randomized design in 2x2x2 factorial arrangement (eight treatments, with five replications). In period 1, feed intake was similar (P > 0,05) between FF and between ME, however pullets fed ad libitum showed 27.5% higher intake than fed with controlled amounts (P < 0,05). Body weight (BW) differed (P < 0.05) in the FS. Feed conversion (FC) was not affected (P > 0.05) by any of the study factors. Flock uniformity was affected (P < 0.05) by FF and by FS, with an interaction between the factors (P < 0.05). The pullets fed the mash feed ad libitum had better uniformity (P < 0.05) than the pullets fed with the controlled mash feed. The pelleted feed caused the worst uniformity. In rearing period 2, feed intake was affected (P < 0.05). That pullets fed mash or pelletized feed ad libitum consumed 8g more (P < 0.05) on average, than those in the controlled FS. In the ad libitum supply, intake was higher (P < 0.05) for the mash feed than for the pelleted feed. BW and FC were not affected by any of the factors (P > 0.05). Uniformity (%) was influenced by the mash or controlled systems (P < 0.05). Between 7 and 17 weeks of age, brown-egg laying pullets need to be fed with a mashed diet in a controlled feeding system, with 2,750 kcal/kg of metabolizable energy. |
| format | Article |
| id | doaj-art-424c8e29092f42f1829923b8f67bd0a0 |
| institution | Kabale University |
| issn | 1678-4596 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj-art-424c8e29092f42f1829923b8f67bd0a02024-12-03T07:48:28ZengUniversidade Federal de Santa MariaCiência Rural1678-45962024-12-0155310.1590/0103-8478cr20240125Feed forms, feeding systems and metabolizable energy levels in diets for brown-egg laying pulletsFlavio Manabu Yurihttps://orcid.org/0000-0002-7810-8412Amanda D’avila Verardihttps://orcid.org/0000-0001-7031-9963Aline Félix Schneider Bedinhttps://orcid.org/0000-0002-1747-2819Jaqueline Kunhen Mayerhttps://orcid.org/0000-0001-8700-5426Clóvis Eliseu Gewehrhttps://orcid.org/0000-0002-6449-0489ABSTRACT: Evaluated different feed forms (FF), (mash or pellets), feeding systems (FS) (ad libitum or controlled) and metabolizable energy levels (ME) (2,900 kcal/kg or 2,750 kcal/kg) in rearing period 1 (7 to 12 weeks) and 2 (13 to 17 weeks). Utilized 400 brown-egg laying pullets a completely randomized design in 2x2x2 factorial arrangement (eight treatments, with five replications). In period 1, feed intake was similar (P > 0,05) between FF and between ME, however pullets fed ad libitum showed 27.5% higher intake than fed with controlled amounts (P < 0,05). Body weight (BW) differed (P < 0.05) in the FS. Feed conversion (FC) was not affected (P > 0.05) by any of the study factors. Flock uniformity was affected (P < 0.05) by FF and by FS, with an interaction between the factors (P < 0.05). The pullets fed the mash feed ad libitum had better uniformity (P < 0.05) than the pullets fed with the controlled mash feed. The pelleted feed caused the worst uniformity. In rearing period 2, feed intake was affected (P < 0.05). That pullets fed mash or pelletized feed ad libitum consumed 8g more (P < 0.05) on average, than those in the controlled FS. In the ad libitum supply, intake was higher (P < 0.05) for the mash feed than for the pelleted feed. BW and FC were not affected by any of the factors (P > 0.05). Uniformity (%) was influenced by the mash or controlled systems (P < 0.05). Between 7 and 17 weeks of age, brown-egg laying pullets need to be fed with a mashed diet in a controlled feeding system, with 2,750 kcal/kg of metabolizable energy.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782025000300653&lng=en&tlng=enfeed managementfeed restrictionmashpelletedpoultry |
| spellingShingle | Flavio Manabu Yuri Amanda D’avila Verardi Aline Félix Schneider Bedin Jaqueline Kunhen Mayer Clóvis Eliseu Gewehr Feed forms, feeding systems and metabolizable energy levels in diets for brown-egg laying pullets Ciência Rural feed management feed restriction mash pelleted poultry |
| title | Feed forms, feeding systems and metabolizable energy levels in diets for brown-egg laying pullets |
| title_full | Feed forms, feeding systems and metabolizable energy levels in diets for brown-egg laying pullets |
| title_fullStr | Feed forms, feeding systems and metabolizable energy levels in diets for brown-egg laying pullets |
| title_full_unstemmed | Feed forms, feeding systems and metabolizable energy levels in diets for brown-egg laying pullets |
| title_short | Feed forms, feeding systems and metabolizable energy levels in diets for brown-egg laying pullets |
| title_sort | feed forms feeding systems and metabolizable energy levels in diets for brown egg laying pullets |
| topic | feed management feed restriction mash pelleted poultry |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782025000300653&lng=en&tlng=en |
| work_keys_str_mv | AT flaviomanabuyuri feedformsfeedingsystemsandmetabolizableenergylevelsindietsforbrownegglayingpullets AT amandadavilaverardi feedformsfeedingsystemsandmetabolizableenergylevelsindietsforbrownegglayingpullets AT alinefelixschneiderbedin feedformsfeedingsystemsandmetabolizableenergylevelsindietsforbrownegglayingpullets AT jaquelinekunhenmayer feedformsfeedingsystemsandmetabolizableenergylevelsindietsforbrownegglayingpullets AT cloviseliseugewehr feedformsfeedingsystemsandmetabolizableenergylevelsindietsforbrownegglayingpullets |