Lima Joseney Maia, Vale Rodolfo Gurgel, Sousa Rejane Dos Santos, Nunes Talyta Lins, Gameleira Jucélio da Silva, Cavalcante Jerson Marques, Minervino Antonio Humberto Hamad, Ortolani Enrico Lippi, Barrêto Júnior Raimundo Alves
Department of Animal Science, Federal Rural University of the Semiarid Region, UFERSA. Av. Francisco Mota, s/n-Bairro Presidente Costa e Silva, Mossoró CEP 59625-900, RN, Brazil.
Department of Clinical Science, College of Veterinary Medicine and Animal Science, FMVZ, University of Sao Paulo, USP. Av. Orlando Marques de Paiva, 87, Cidade Universitária, São Paulo CEP 05508-270, SP, Brazil.
Vet Sci. 2021 Jan 6;8(1):8. doi: 10.3390/vetsci8010008.
Seasonality effects on the mineral profile of goats were evaluated. Fifty males were divided into two groups, one with mineral supplementation and one control. Seasonal evaluation was conducted during four periods: beginning, middle, and end of the dry period and middle of the rainy period. Rib and liver biopsies were performed, and blood was collected at each period to evaluate mineral accumulation. Ca, P, Cu, Fe, Mo, Zn, and Co concentrations were determined using inductively coupled plasma optical emission spectrometry after acid digestion. Normal Ca, P, and Mo; low Cu, Zn, and Co; and high Fe levels were observed in the diet. The young animals analyzed showed normal serum and bone Ca and P concentrations, suggesting no need for supplementation throughout the entire year under the conditions of this study. Iron showed high values throughout the year, being potentially dangerous especially owing to its antagonistic relationship with other elements. Cu and Zn deficiency in the diet was observed under the conditions of this study, requiring supplementation with values higher than those contained in the mineral supplement used in the middle and end of the dry period. The supply of specific mineral supplement formulated for animals farmed in the semiarid region is suggested and would reduce costs.
评估了季节性对山羊矿物质分布的影响。五十只雄性山羊被分为两组，一组补充矿物质，一组作为对照。在四个时期进行季节性评估：旱季开始、中期和末期以及雨季中期。进行了肋骨和肝脏活检，并在每个时期采集血液以评估矿物质积累情况。酸消解后，使用电感耦合等离子体发射光谱法测定钙、磷、铜、铁、钼、锌和钴的浓度。在日粮中观察到正常的钙、磷和钼；低水平的铜、锌和钴；以及高水平的铁。所分析的幼龄动物血清和骨骼中的钙和磷浓度正常，表明在本研究条件下全年无需补充。铁全年含量都很高，尤其是由于其与其他元素的拮抗关系，可能具有危险性。在本研究条件下，日粮中观察到铜和锌缺乏，在旱季中期和末期需要补充高于所用矿物质补充剂中所含含量的铜和锌。建议为半干旱地区养殖的动物提供特定配方的矿物质补充剂，这将降低成本。
