Cargando…

The impact of age and feeding length on phytase efficacy during the starter phase of broiler chickens

Phytase is of importance to the poultry industry because of its ability to hydrolyze phytate and release phosphorus (P) for use by poultry. However, the effect of age on phytase efficacy is not fully understood. A total of 864 day-old broiler chicks were used to investigate the effect of age and fee...

Descripción completa

Detalles Bibliográficos
Autores principales: Babatunde, O.O., Cowieson, A.J., Wilson, J.W., Adeola, O.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8913947/
https://www.ncbi.nlm.nih.gov/pubmed/31287893
http://dx.doi.org/10.3382/ps/pez390
_version_ 1784667575718772736
author Babatunde, O.O.
Cowieson, A.J.
Wilson, J.W.
Adeola, O.
author_facet Babatunde, O.O.
Cowieson, A.J.
Wilson, J.W.
Adeola, O.
author_sort Babatunde, O.O.
collection PubMed
description Phytase is of importance to the poultry industry because of its ability to hydrolyze phytate and release phosphorus (P) for use by poultry. However, the effect of age on phytase efficacy is not fully understood. A total of 864 day-old broiler chicks were used to investigate the effect of age and feeding length on phytase efficacy using growth performance, mineral utilization, and tibia ash as response criteria of evaluation. The experiment was arranged as a 3 × 2 × 2 factorial in a randomized complete block design with 3 diets including; a positive control (PC; 0.4% non-phytate P (nPP)), a negative control (NC; 0.2% nPP) and a NC diet supplemented with phytase at 2,000 FYT/kg; 2 ages (i.e., days 14 and 22); and 2 feeding lengths (i.e., 2 and 5 D) with 8 replicates each. Birds fed the NC had decreased (P < 0.01) body weight gain and feed efficiency compared with birds fed the PC regardless of age or feeding length. Similarly, birds fed the phytase-supplemented diet had improved (P < 0.01) performance as compared to birds fed the NC regardless of age. There were no significant differences in P utilization between birds fed for 2 to 14 D or 22 D and birds fed for 5 D to both ages. However, phytase was more efficacious at day 14 than day 22 when mineral utilization was considered because the super dose of phytase elicited greater response in birds fed the phytase supplemented diet for 2 D until day 14. In contrast, percentage tibia ash improved (P < 0.01) in birds fed phytase supplemented diet for 5 D at both ages as compared with birds fed for 2 D. In conclusion, testing phytase products, even at high doses, for 2 D during the second week in the life cycle of broiler chicks, can be recommended from the results of this study.
format Online
Article
Text
id pubmed-8913947
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-89139472022-03-12 The impact of age and feeding length on phytase efficacy during the starter phase of broiler chickens Babatunde, O.O. Cowieson, A.J. Wilson, J.W. Adeola, O. Poult Sci Metabolism and Nutrition Phytase is of importance to the poultry industry because of its ability to hydrolyze phytate and release phosphorus (P) for use by poultry. However, the effect of age on phytase efficacy is not fully understood. A total of 864 day-old broiler chicks were used to investigate the effect of age and feeding length on phytase efficacy using growth performance, mineral utilization, and tibia ash as response criteria of evaluation. The experiment was arranged as a 3 × 2 × 2 factorial in a randomized complete block design with 3 diets including; a positive control (PC; 0.4% non-phytate P (nPP)), a negative control (NC; 0.2% nPP) and a NC diet supplemented with phytase at 2,000 FYT/kg; 2 ages (i.e., days 14 and 22); and 2 feeding lengths (i.e., 2 and 5 D) with 8 replicates each. Birds fed the NC had decreased (P < 0.01) body weight gain and feed efficiency compared with birds fed the PC regardless of age or feeding length. Similarly, birds fed the phytase-supplemented diet had improved (P < 0.01) performance as compared to birds fed the NC regardless of age. There were no significant differences in P utilization between birds fed for 2 to 14 D or 22 D and birds fed for 5 D to both ages. However, phytase was more efficacious at day 14 than day 22 when mineral utilization was considered because the super dose of phytase elicited greater response in birds fed the phytase supplemented diet for 2 D until day 14. In contrast, percentage tibia ash improved (P < 0.01) in birds fed phytase supplemented diet for 5 D at both ages as compared with birds fed for 2 D. In conclusion, testing phytase products, even at high doses, for 2 D during the second week in the life cycle of broiler chicks, can be recommended from the results of this study. Elsevier 2019-12-17 /pmc/articles/PMC8913947/ /pubmed/31287893 http://dx.doi.org/10.3382/ps/pez390 Text en © 2019 Poultry Science Association Inc. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Metabolism and Nutrition
Babatunde, O.O.
Cowieson, A.J.
Wilson, J.W.
Adeola, O.
The impact of age and feeding length on phytase efficacy during the starter phase of broiler chickens
title The impact of age and feeding length on phytase efficacy during the starter phase of broiler chickens
title_full The impact of age and feeding length on phytase efficacy during the starter phase of broiler chickens
title_fullStr The impact of age and feeding length on phytase efficacy during the starter phase of broiler chickens
title_full_unstemmed The impact of age and feeding length on phytase efficacy during the starter phase of broiler chickens
title_short The impact of age and feeding length on phytase efficacy during the starter phase of broiler chickens
title_sort impact of age and feeding length on phytase efficacy during the starter phase of broiler chickens
topic Metabolism and Nutrition
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8913947/
https://www.ncbi.nlm.nih.gov/pubmed/31287893
http://dx.doi.org/10.3382/ps/pez390
work_keys_str_mv AT babatundeoo theimpactofageandfeedinglengthonphytaseefficacyduringthestarterphaseofbroilerchickens
AT cowiesonaj theimpactofageandfeedinglengthonphytaseefficacyduringthestarterphaseofbroilerchickens
AT wilsonjw theimpactofageandfeedinglengthonphytaseefficacyduringthestarterphaseofbroilerchickens
AT adeolao theimpactofageandfeedinglengthonphytaseefficacyduringthestarterphaseofbroilerchickens
AT babatundeoo impactofageandfeedinglengthonphytaseefficacyduringthestarterphaseofbroilerchickens
AT cowiesonaj impactofageandfeedinglengthonphytaseefficacyduringthestarterphaseofbroilerchickens
AT wilsonjw impactofageandfeedinglengthonphytaseefficacyduringthestarterphaseofbroilerchickens
AT adeolao impactofageandfeedinglengthonphytaseefficacyduringthestarterphaseofbroilerchickens