Effect of Genetic Crossing and Nutritional Management on the Mineral Composition of Carcass, Blood, Leather, and Viscera of Sheep

Author(s)

Higuera, Julymar M. ^{[1, 2]} ; Silva, Ana Beatriz S. ^{[1, 2]} ; Henrique, Wignez ^[3] ; Esteves, Sergio N. ^[2] ; Barioni, Jr., Waldomiro ^[2] ; Donati, George L. ^[4] ; Nogueira, Ana Rita A. ^[2]

Affiliation

^[1] Univ Fed Sao Carlos, Dept Chem, Grp Appl Instrumental Anal, POB 676, BR-13565905 Sao Carlos, SP - Brazil

^[2] Embrapa Pecuaria Sudeste, POB 339, BR-13560970 Sao Carlos, SP - Brazil

^[3] UPD Sao Jose Do Rio Preto, Agencia Paulista Tecnol Agronegocios, Sao Jose Do Rio Preto, SP - Brazil

^[4] Wake Forest Univ, Dept Chem, Box 7486, Salem Hall, Winston Salem, NC 27109 - USA

• Document type: Journal article
• Source: BIOLOGICAL TRACE ELEMENT RESEARCH; v. 199, n. 11, p. 4133-4144, NOV 2021.
• Web of Science Citations: 0

Abstract

The effect of genetic crossing and nutritional management on weight gain and the concentration of minerals and trace elements in the carcass, blood, leather, and viscera of sheep were evaluated. Several statistical strategies were used to evaluate the different elemental composition characteristics of pure breed animals, i.e., White Dorper (ODO), Ile de France (OIF), Texel (OTX), and Santa Ines (OSI), as well as their crossbreeds 1/2 White Dorper and 1/2 Santa Ines (ODS), 1/2 Ile de France, and 1/2 Santa Ines (OIS), 1/2 Texel x 1/2 Santa Ines (OTS). Three different diets were evaluated AL (ad libitum), R75, and R63 (75 and 63 g of dry matter/kg of the animal metabolic weight, respectively). Levels of Ca, Cu, Fe, K, Mg, Mn, P, S, and Zn were determined by inductively coupled plasma optical emission spectrometry (ICP OES). The concentration of inorganic elements in the different body components was not affected by the diet (P > 0.05), and OTX and OTS were the breeds with the highest weight gain. Random forest importance models demonstrated that Zn in the carcass, K, Ca, and Zn in blood, and K in leather are most associated with separating the different evaluated sheep's breeds. Crossbreeding the native Santa Ines breed with sheep of exotic breeds produces animals well adapted to confinement. (AU)

• FAPESP's process: 11/51564-6 - Crossbreeding and management strategies to optimize maternal and reproductive performance of female sheep, for the production of high quality sheep meat and leather, in the Southeast region of Brazil
• Grantee: Maurício Mello de Alencar
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 18/26145-9 - Bioavailability, bioaccessibility, and speciation of nutrients and inorganic contaminants in meat and fish
• Grantee: Ana Rita de Araujo Nogueira
• Support Opportunities: Regular Research Grants