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RESEARCH ARTICLE

Estimation of desired feed intake for growth and reproductive organ development in pre-laying hens

Hilda Palma Bendezu A , Nilva Kazue Sakomura A B , Euclides Braga Malheiros A , Juliano Cesar De Paula Dorigam A , Edney Pereira Da Silva A and Matheus De Paula Reis A
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- Author Affiliations

A Universidade Estadual Paulista, Jaboticabal, São Paulo, 14884-900, Brazil.

B Corresponding author. Email: sakomura@fcav.unesp.br

Animal Production Science 59(7) 1228-1234 https://doi.org/10.1071/AN17768
Submitted: 8 November 2017  Accepted: 9 July 2018   Published: 18 September 2018

Abstract

The objective of the present study was to describe the growth of reproductive organs and, on the basis of this information, predict feed intake during the pre-laying phase of laying-type pullets and to evaluate the results of the models. Ninety-six ISA-Brown pullets from 15 to 28 weeks of age were used in the first experiment. The weights of the birds with and without feathers, ovaries and oviducts were measured, and samples were taken to analyse dry matter, gross energy and crude protein. Seventy-six ISA-Brown and 76 Hy-Line pullets from 15 to 24 weeks of age were used in the second experiment. Feed intake was measured daily for each hen until the first egg was laid. The energy for maintenance (EEM) was calculated on the basis of the actual protein content and protein weight at maturity. The effective energy (EE) requirement was calculated as EER = EEM + 50 deposition of protein (DP) + 56 deposition of lipids (DL). Feed intake was calculated by dividing the EE requirement by the EE content in the feed. The simulation of feed intake overestimated values of 0.41 g/day (P > 0.05) and 2.65 g/day (P < 0.001) for Hy-Line and ISA-Brown respectively. A significant linear bias was observed for Hy-Line (P < 0.001) but not for ISA-Brown (P > 0.05). The assessment of the results indicated that the models for predicting feed intake were more accurate and less precise for Hy-Line than for ISA-Brown. Thus, there was an agreement between the calculated and measured values for feed intake, which shows that the models provide a true estimation of feed intake during the pre-laying phase.

Additional keywords: genetic potential, nutrient requirement, nutrition model, poultry, pullets.


References

AOAC (2005) ‘Official methods of analysis.’ 18th edn. (Association of Official Analytical Chemists: Arlington, VA)

Bonato MA, Sakomura NK, Silva EP, Araujo JA, Sünder A, Lieber TF (2014) Amino acid requirements for pullets based on potential protein deposition and efficiency of amino acid utilization, In ‘Nutritional modelling for pig and poultry production’. (Eds NK Sakomura, RM Gous, I Kyriazakis, L Hauschild) pp. 269–282. (CAB International: Wallingford, UK)

Bowmaker JE, Gous RM (1991) The response of broiler breeder hens to dietary lysine and methionine. British Poultry Science 32, 1069–1088.
The response of broiler breeder hens to dietary lysine and methionine.Crossref | GoogleScholarGoogle Scholar |

Emmans GC (1981) A model of the growth and feed intake of ad-libitum fed animals, particularly poultry. In ‘Computers in animal production’. (Eds GM Hillyer, CT Whittemore, RG Gunn) pp. 103–110. Animal Production, Occasional Publication No. 5. (British Society of Animal Production: London)

Emmans GC (1987) Growth, body composition and feed intake. World’s Poultry Science Journal 43, 208–227.
Growth, body composition and feed intake.Crossref | GoogleScholarGoogle Scholar |

Emmans GC (1989) The growth of turkeys. In ‘Recent advances in turkey science.’ (Eds C Nixey, TC Grey) pp. 135–166. (Butterworths Publications: London)

Emmans GC (1994) Effective energy: a concept of energy utilization applied across species. British Journal of Nutrition 71, 801–821.
Effective energy: a concept of energy utilization applied across species.Crossref | GoogleScholarGoogle Scholar |

Emmans GC (1997) A method to predict the food intake of domestic animals from birth to maturity as a function of time. Journal of Theoretical Biology 186, 189–199.
A method to predict the food intake of domestic animals from birth to maturity as a function of time.Crossref | GoogleScholarGoogle Scholar |

Emmans GC, Fisher C (1986) Problems in nutritional theory. In ‘Nutrient requirements of poultry and nutritional research’. (Eds C Fisher, KN Boorman) pp. 9–39. (Butterworths Publications: London)

Emmans GC, Oldham JD (1988) Modelling of growth and nutrition in different species. In ‘Modelling of livestock production systems’. (Eds S Karver, JAM van Arendonk) pp. 13–21. (Kluwer Academic Publishers)

Ferguson NS (2006) Basic Concepts Describing Animal Growth and Feed Intake. In ‘Mechanistic modelling in pig and poultry production’. (Eds RM Gous, T Morris, C Fisher) pp. 22–53. (CAB International: Wallingford, UK)

Fisher H, Johnson D (1956) The amino acid requirement of the laying hen. I. The development of a free amino acid diet for maintenance of egg production. The Journal of Nutrition 60, 261–273.
The amino acid requirement of the laying hen. I. The development of a free amino acid diet for maintenance of egg production.Crossref | GoogleScholarGoogle Scholar |

Fisher C, Morris TR, Jennings RC (1973) A model for the description and prediction of the response of laying hens to amino acid intake. British Poultry Science 14, 469–484.
A model for the description and prediction of the response of laying hens to amino acid intake.Crossref | GoogleScholarGoogle Scholar |

Gompertz B (1825) On nature of the function expressive of the law of human mortality, and on a new mode of determining the value of life contingencies. Philosophical Transactions of the Royal Society 115, 513–583.
On nature of the function expressive of the law of human mortality, and on a new mode of determining the value of life contingencies.Crossref | GoogleScholarGoogle Scholar |

Hauschild L, Sakomura NK, Silva EP (2014) Model for predicting poultry growth, energy and amino acid requirements. In ‘Nutritional modelling for pig and poultry production’. (Eds NK Sakomura, RM Gous, I Kyriazakis, L Hauschild) pp. 269–282. (CAB International: Wallingford, UK)

Hy-Line (2013) ‘Hy-Line W36 commercial management guide.’ Available at http://www.hylinedobrasil.com.br/hyline/download/guia_w36_E3.pdf [Verified 2 February 2014]

ISA-Brown (2011) ‘Nutrition management guide.’ Available at http://www.isapoultry.com/~/media/Files/ISA/ISA%20product%20information/ISA/North%20American%20version/ISA%20Brown%20Commercial%20Stock%20 North%20American%20version.pdf [Verified 4 August 2013]

Rostagno HS, Albino LFT, Donzele JL, Gomes PC, Oliveira RF, Lopes DC, Ferreira AS, Barreto SLT, Euclides RF (2011) ‘Brazilian tables for poultry and swine: composition of feedstuffs and nutritional requirements.’ 3rd edn. (UFV Publishing: MG, Brazil)

Silva EP, Sakomura NK, Hauschild L, Gous RM (2014) Model to estimate the amino acid requirements for growth and sexual development in laying pullets. In ‘Nutritional modelling for pig and poultry production’. (Eds NK Sakomura, RM Gous, I Kyriazakis, L Hauschild) pp. 223–233. (CAB International: Wallingford, UK)

St-Pierre NR (2003) Reassessment of biases in predicted nitrogen flows to the duodenum by NRC 2001. Journal of Dairy Science 86, 344–350.
Reassessment of biases in predicted nitrogen flows to the duodenum by NRC 2001.Crossref | GoogleScholarGoogle Scholar |

Ventana Systems (2003) ‘Vensim simulation software.’ Available at http://www.vensim.com [Verified 4 August 2012]