Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094
March 2018 Vol. 7(3): pp. 098-103
Copyright © 2018 Global Advanced Research Journals
Full Length Research Paper
Effect of an Enzymatic Complex of Protease Plus Xylanase and Nutrient Concentration in Diets on the Productive Performance of Broiler Chickens in the Dry Tropics
Jaime Salinas-Chavira1*, Alonso G. Acevedo-Torres1, Claudio Arzola Álvarez2, Eduardo A. González Valenzuela1, Julio Hinojosa-Hinojosa1
1Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tamaulipas.km 5 carretera Victoria-Mante, Cd. Victoria, Tamaulipas, CP 87000 México.
2Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahua, Chihuahua 31110, México.
*Corresponding Author's Email: firstname.lastname@example.org
Accepted 06 March, 2018
The influence of an enzyme complex of protease+xylanase (ECPX) and nutrient concentration in diets on productive performance was assessed in 200, 1-day old mixed broiler chicks (53.3 ± 1.9 g) assigned at random in a 22 factorial design with 5 repetitions (10 chicks each). Factors were dietary level of nutrients (standard and low in nutrients) and ECPX (0 and 400 g/ton). The trial had two phases (starter and finisher) of 21 days each. Nutrient concentration was reduced in the low-nutrient diets considering the matrix of energy and protein released by ECPX (9.14% and 7.74% of CP; 47 and 53 Mcal/kg of ME, in starter and finisher, respectively). There was no interaction (P>0.10) between factors. The ECPX improved weight gain throughout the study (P <0.05) and feed intake in the finisher stage and total trial (P <0.01). Enzyme supplementation did not affect feed conversion (P> 0.10). Animals fed the standard diet had greater weight gain (P<0.05) and improved feed conversion throughout the study (P<0.05). It is concluded that in the dry tropics during the heat season the ECPX may enhance production performance of broilers fed both standard and low-nutrient diets. However, nutrient reduction alone may affect productive performance of broiler chickens.
Keywords: exogenous enzymes, nutrients, production, broilers, heat season.
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- Jaime Salinas-Chavira on Google Scholar
- Jaime Salinas-Chavira on Pubmed
- Alonso G. Acevedo-Torres on Google Scholar
- Alonso G. Acevedo-Torres on Pubmed
- Claudio Arzola Álvarez on Google Scholar
- Claudio Arzola Álvarez on Pubmed
- Eduardo A. González Valenzuela on Google Scholar
- Eduardo A. González Valenzuela on Pubmed
- Julio Hinojosa-Hinojosa on Google Scholar
- Julio Hinojosa-Hinojosa on Pubmed