Productive characteristics of meat quails reared in different environments

Authors

  • Dihego Silva Bonfim Universidade Federal do Maranhão
  • Jefferson Costa de Siqueira Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão
  • Marcos Antonio Delmondes Bomfim Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão
  • Felipe Barbosa Ribeiro Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão
  • Francisco Loiola de Oliveira Universidade Federal do Maranhão
  • Daphinne Cardoso Nagib Nascimento Universidade Federal do Piauí
  • Solange de Araujo Melo Universidade Estadual do Maranhão

DOI:

https://doi.org/10.5433/1679-0359.2016v37n6p4313

Keywords:

Coturnix coturnix coturnix, Performance, Relative weights, Temperatures, Yields.

Abstract

The objective of this study was to evaluate the effects of ambient temperature and consumption on the performance, carcass yields and cuts, organs, and body temperatures of meat quails. The experiment was conducted at the Federal University of Maranhão, campus of Chapadinha-MA, during September to October 2013. From the 14th day of age, 450 meat quails, not sexed, with an average initial weight of 90.4 ± 12.9 g, were distributed in batteries and accommodated in either acclimatized or non-acclimatized rooms, until 42 days of age. The experimental design was completely randomized, with three treatments, and six replicates of 25 birds each. The treatments were CE (acclimatized environment at 26 °C); NE (natural environment), and CECC (acclimatized environment at 26 °C with controlled feed, to keep the same consumption level as that of the birds in NE). The evaluated variables at 28 and 42 days of age were as follows: (1) the intake of feed, weight gain, feed conversion, body weight, and energy efficiency to weight gain, (2) the carcass weight, carcass yields (%) for breast, thigh, drumstick, and wing, and (3) the relative weights (%) of the digestive tract, heart, liver, gizzard, and intestine. In addition, we evaluated the cloacal and surface temperatures (°C), and subsequently, calculated the average and surface body temperatures. The treatment means were compared using the Student-Newman-Keuls test, with 5% level of significance. Compared with the acclimatized ambient environment, the natural environment more favored the performance of quails up to 28 days, but then affected it negatively from that age onward. Carcass yield, organs, and internal temperature of the quails maintained in the acclimatized and natural environments were not influenced.

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Author Biographies

Dihego Silva Bonfim, Universidade Federal do Maranhão

Mestre em Ciência Animal, Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, CCAA/UFMA, Chapadinha, MA, Brasil.

Jefferson Costa de Siqueira, Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão

Prof., Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, CCAA/UFMA, Chapadinha, MA, Brasil.

Marcos Antonio Delmondes Bomfim, Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão

Prof., Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, CCAA/UFMA, Chapadinha, MA, Brasil.

Felipe Barbosa Ribeiro, Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão

Prof., Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, CCAA/UFMA, Chapadinha, MA, Brasil.

Francisco Loiola de Oliveira, Universidade Federal do Maranhão

Graduado em Zootecnia, UFMA, Chapadinha, MA, Brasil.

Daphinne Cardoso Nagib Nascimento, Universidade Federal do Piauí

Doutorado em Ciência Animal, Universidade Federal do Piauí, UFPI, Bom Jesus, PI, Brasil.

Solange de Araujo Melo, Universidade Estadual do Maranhão

Profª., UEMA, Balsas, MA, Brasil.

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Published

2016-12-14

How to Cite

Bonfim, D. S., Siqueira, J. C. de, Bomfim, M. A. D., Ribeiro, F. B., Oliveira, F. L. de, Nascimento, D. C. N., & Melo, S. de A. (2016). Productive characteristics of meat quails reared in different environments. Semina: Ciências Agrárias, 37(6), 4313–4326. https://doi.org/10.5433/1679-0359.2016v37n6p4313

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