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Rodrigues RCM, Furtado DA, Ribeiro NL, de Sousa Silva R, da Costa Silva JAP, da Silva MR, Mascarenhas NMH, Cavalcanti CR, Ayres GDJ, Dornelas KC, Lima PR, de Figueiredo CFV. Blood biochemical, hormonal, and hematological responses of native sheep submitted to different environmental conditions. Res Vet Sci 2023; 165:105067. [PMID: 37925818 DOI: 10.1016/j.rvsc.2023.105067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/07/2023] [Accepted: 10/22/2023] [Indexed: 11/07/2023]
Abstract
The aim of this study was to evaluate the biochemical, hormonal, and hematological blood responses of native sheep subjected to five temperatures (20°, 24°, 28°, 32°, and 36 °C), using 24 sheep of the following breeds: Santa Inês (SI), Morada Nova (MN), Soinga (SO) and no defined racial pattern (NDRP), kept in collective pens inside the climatic chamber. The experimental design was completely randomized, in a 5 × 4 factorial scheme (5 temperatures and 4 breeds) with 6 animals of each breed at each temperature. There was interaction for urea (P < .0001), glucose (P < .0001), cholesterol (P < .0001), and magnesium (P < .0001) as a function of breed and air temperature. Urea (P = .001), glucose (P < .0001), triglycerides (P = .033), cholesterol (P = .004), and magnesium (P < .0001) showed differences according to breed. It was observed that T4 (P < .0001) and cortisol (P < .0001) showed an interaction between breed and temperature, while T4 (P = .001) and cortisol (P = .001) an effect of breed. The highest magnesium concentration was observed in MN, and the lowest was in NDRP, SO, and SI, which are statistically similar, and SI and NDRP are statistically similar. The hormones showed a significant effect (P < .0001) for temperature, where cortisol increased, and thyroid hormones decreased with increasing temperature. Temperatures of 32° and 36 °C contribute to changes in blood, hormone, and hematological biochemical responses of native sheep.
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da Silva TGP, Munhame JA, Lopes LA, de Assis Leite Souza F, Guim A, de Carvalho FFR, Soares PC, de Barros MEG, Arandas JKG, Batista ÂMV. Liver status of goats fed with cactus cladodes genotypes resistant to Dactylopius opuntiae. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2021.106359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Fátima CJTD, Mendonça CLD, Andrade Neto AQD, Nascimento Júnior AFD, Silva SPRD, Afonso JAB. EFFECTS OF DIETARY SODIUM MONENSIN ON THE METABOLIC AND HORMONAL PROFILES OF DAIRY GOATS DURING THE PERIPARTUM PERIOD. CIÊNCIA ANIMAL BRASILEIRA 2018. [DOI: 10.1590/1809-6891v19e-51453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract This study aimed to investigate the energetic and hormonal profiles of dairy goats fed diets supplemented with monensin during the peripartum period. Eleven pregnant Saanen goats were subdivided into two random groups, a control group (GC) and the monensin group (MG). The MG group received 40 mg sodium monensin per animal per day for 15 days before partum and throughout the subsequent experimental period. Clinical observations and sample collection were performed at 30, 15, and 7 days before birth; on the day of partum; and at 5, 15, and 30 days after birth. The following biochemical and hormonal profile variables analyzed were: cholesterol, triglycerides, glucose, fructosamine, non-esterified fatty acids (NEFAs) and β-hydroxybutyrate (BHB), cortisol, and insulin. The ruminal fluid pH, chloride content, and volatile fatty acids were also measured. Statistical analysis of the data was performed using repeated measures ANOVA (p < 0.05) and Pearson's correlation. At partum, the MG group had lower values of NEFAs and lower acetate/propionate ratio. MG had higher triglycerides during the entire experiment period. The administration of monensin generated benefits in terms of energy parameters, improving the metabolic status of the dairy goats during peripartum.
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Longo ML, Vargas Junior FM, Cansian K, Souza MR, Burim PC, Silva ALA, Costa CM, Seno LO. Environmental factors that influence milk production of Pantaneiro ewes and the weight gain of their lambs during the pre-weaning period. Trop Anim Health Prod 2018; 50:1493-1497. [PMID: 29656341 DOI: 10.1007/s11250-018-1586-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 04/02/2018] [Indexed: 10/17/2022]
Abstract
The main objective of this research was to conduct an exploratory study of the lactation curve in order to characterize the productive potential of Pantaneiro ewes and lambs. Fifty ewes were bred using four rams in two different mating seasons. The ewes were kept with their lambs on pasture of Brachiaria brizantha. Ewe body score, ewe weight, and lamb weight were evaluated. Milk sampling was performed every week. In the morning for milk collections, the ewes were treated with 1 UI of oxytocin (intramuscular) for complete milking. Lambs were separated from the ewes for 4 h and milk collections were performed. The total milk production over 24 h was estimated by multiplying the production of this period (4 h) by 6. The data were analyzed using the MIXED procedure (P < 0.05) in SAS. Milk production data were fitted to the curve using the incomplete gamma function of Wood, and lamb growth data were fitted using the Gompertiz equation. The average milk production of the ewes was 1.03 kg/day-1. Younger ewes had the lowest milk production (18 = 798 ± 330, 24 = 1001 ± 440, 36 = 1100 ± 490, and 48 = 1106 ± 490 g/day-1). Ewe body score at lambing affected initial milk production (1.0 = 816 ± 660, 1.5 = 1089 ± 105, and 2.0 = 1424 ± 1600 g/day-1). Lambs were weaned with an average weight of 20.3 kg. Daily weight gain from birth to weaning was 181 g. Locally adapted Pantaneiro ewes showed a linear decreasing lactation curve, with reduced production from the second week of lactation. Overall, evaluation of the dairy production and lamb performance revealed great variation, denoting potential for selection.
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Affiliation(s)
- M L Longo
- Faculty of Agricultural Sciences, Federal University of Grande Dourados, Rodovia Dourados-Itahum, km 12, Caixa Postal, 322, Dourados, MS, 79825-070, Brazil
| | - F M Vargas Junior
- Faculty of Agricultural Sciences, Federal University of Grande Dourados, Rodovia Dourados-Itahum, km 12, Caixa Postal, 322, Dourados, MS, 79825-070, Brazil.
| | - K Cansian
- Faculty of Agricultural Sciences, Federal University of Grande Dourados, Rodovia Dourados-Itahum, km 12, Caixa Postal, 322, Dourados, MS, 79825-070, Brazil
| | - M R Souza
- Faculty of Agricultural Sciences, Federal University of Grande Dourados, Rodovia Dourados-Itahum, km 12, Caixa Postal, 322, Dourados, MS, 79825-070, Brazil
| | - P C Burim
- Faculty of Agricultural Sciences, Federal University of Grande Dourados, Rodovia Dourados-Itahum, km 12, Caixa Postal, 322, Dourados, MS, 79825-070, Brazil
| | - A L A Silva
- Faculty of Agricultural Sciences, Federal University of Grande Dourados, Rodovia Dourados-Itahum, km 12, Caixa Postal, 322, Dourados, MS, 79825-070, Brazil
| | - C M Costa
- Faculty of Agricultural Sciences, Federal University of Grande Dourados, Rodovia Dourados-Itahum, km 12, Caixa Postal, 322, Dourados, MS, 79825-070, Brazil
| | - L O Seno
- Faculty of Agricultural Sciences, Federal University of Grande Dourados, Rodovia Dourados-Itahum, km 12, Caixa Postal, 322, Dourados, MS, 79825-070, Brazil
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