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Alternative calcium source effects on commercial egg production and quality
Pelícia, K; Garcia, EA; Scherer, MRS; Móri, C; Dalanezi, JA; Faitarone, ABG; Molino, AB; Berto, DA.
Affiliation
  • Pelícia, K; s.af
  • Garcia, EA; UNESP FMVZ Department of Animal Production.
  • Scherer, MRS; s.af
  • Móri, C; s.af
  • Dalanezi, JA; s.af
  • Faitarone, ABG; s.af
  • Molino, AB; s.af
  • Berto, DA; s.af
Article in En | LILACS-Express | VETINDEX | ID: biblio-1491154
Responsible library: BR68.1
ABSTRACT
This study aimed at verifying the possibility of replacing calcitic limestone by marine calcium in the diet of layers. A total number of 321 Hi-sex hens, with 40 weeks of age at the beginning of the experiment, was used. A completely randomized experimental design was applied, with 5 treatments (0, 15, 30, 45, and 60 % of calcitic limestone replacement by marine calcium source) and eight replicates of eight birds each. Treatments significantly affected specific gravity (p 0.05), with the inclusion of 60% marine calcium (T5) presenting the worst result as compared to T1, which included only calcitic limestone as calcium source. It was concluded that marine calcium can replace up to 45% of calcitic limestone with no effects on performance or egg quality.
Key words
Full text: 1 Database: VETINDEX Language: En Journal: Rev. bras. ciênc. avic Year: 2007 Document type: Article
Full text: 1 Database: VETINDEX Language: En Journal: Rev. bras. ciênc. avic Year: 2007 Document type: Article