O leite caprino e a mastite subclínica: implicações sanitárias e impacto sobre os sistemas de produção

Abstract

The objective of the present study was to characterize and typify an occurrence of subclinical mastitis in caprine herds identifying their main, regional occurrence, prevalence and economic impacts. We studied 44 SPL (Milk Production Systems) in the region of Valente - BA in 2017. The UFRB under the number of online users (CONEP) - UFRB under the number (64519817.7.0000.0056) following the described methodologies by Foody, (2003) and Ramos (2008), related to seven main groups; cj1- Characteristics of the owner and rural property, cj3-Characterization of milk production and risk of mastitis, cj4-Management of food cj5-Management of milking cj6-ATER information and commercialization, cj7-Form of field. Age, body condition score, sieve test, CMT reaction (coagulation score 1-3) and non - dairy samples of 3 samples / SPL were analyzed for the analyzes (protein, lactose, st, esd, ccs and cbt). A comparison was made between the components, using means found by Malheiros Filho et al. (2014) and AFM (Multiple Factorial Analysis). Software R 2.15.0 and Factor Miner package were used in all analyzes. The dimension 01 was characterized by the variables related to the diversity of microorganisms in milk. The size 02 was characterized by the variables related to the reaction score of the animal to the CMT test and the size 03 related to the management in the milking mainly influenced by the note attributed by the milker regarding the importance of the cleaning of the ceilings of the animals. From the typology three types were obtained and the bacterium Streptococcus agalactiae isolated in all types. Type 01 showed high contamination by microorganisms, did not treat animals with antibiotics, high reaction to CMT (19.99%) and lower (R $ 938,90) revenue. Type 02 presented low bacterial contamination, treated animals with antibiotics, reaction to CMT in (20%), higher income (R $ 2823,49). Type 03 presented medium contamination by microorganisms, treated the herd with antibiotics, reaction to CMT of (20%) and income (R $ 1192,31). There was (p<0.001) for fat and total solids among the Types. There was a reaction to the CMT test for 67.81% of the animals and the diversity of microorganisms in the milk, CMT Reaction Score and grading attributed by the milker related to the ceiling hygiene of the animal were the main discriminatory variables for SPL.