Open AccessIsotopic carbon turnover in pig hoof and rib
Author(s) -
Regina Maria Nascimento Augusto Blaitt,
Vivian Lo Tierzo,
Juliana Célia Denadai,
Cibele Regina de Souza Kruliski,
Carlos Ducatti,
Dirlei Antônio Berto,
Maria Márcia Pereira Sartori
Publication year - 2021
Publication title -
acta scientiarum. animal sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.334
H-Index - 17
eISSN - 1807-8672
pISSN - 1806-2636
DOI - 10.4025/actascianimsci.v43i1.48299
Subject(s) - hoof , rib cage , zoology , isotope dilution , isotope , carbon fibers , δ13c , isotopes of carbon , stable isotope ratio , biology , chemistry , anatomy , ecology , total organic carbon , materials science , chromatography , mass spectrometry , physics , quantum mechanics , composite number , composite material
The objective of this study was to evaluate the behavior of carbon incorporation and turnover in hoof and ribs of pigs at different periods of development in the search for tissues that reflect longer the former diet. We used 132 commercial hybrids (barrows and females), weaned at an average age of 21 days, distributed in a completely randomized design with four treatments on different days of substitution of corn (C4 cycle plant grain) diets with broken rice (C3 cycle plant grain) at 21, 42, 63 and 110 days of age to change the carbon-13 isotope signal. By means of isotopic dilution curves, we observed that animals whose C4 diet was replaced with C3 diet at 21, 42, 63 and 110 days of age, for hoof and rib, reached a new level of isotope equilibrium. Bone samples are better choices to reflect the former diet, due to conservation of the isotopic signal for longer.