Effect of Season on Occurrence of Caprine Mastitis in Beetal in Faisalabad Premises

Abstract

Mastitis in goats, analogous to dairy cattle, is one of the most significant diseases of economic importance, worldwide. For the proposed study 25 Beetal Faisalabadi goat farms comprising 10-20 goats in radius of 25 km was included. Sampling was done during two kidding season first in September-October and second in FebruaryMarch. The epidemiological data, including goat breed, age, parity, stage of lactation, amount of milk, length of lactation period, and farming system were recorded. These selected herds were screened out by SFMT and positive milk samples were aseptically collected. Samples from infected goats were subjected to microbiological assays. On the basis of results of sampling, screening and microbiological analysis of milk samples it was revealed that mastitis is more in summer season as compared to winter season. In winter the occurrence of mastitis in beetal Faisalabadi was 21.68% and in summer it was 25.70%. Bacteriological examination of mastitic milk samples revealed that Staphylococcus species was the major etiological agent of caprine mastitis in Beetal Faisalabadi goats during both season. Statistical results of the study has showed that age, teat length, teat end, teat symmetry, distance between teat length and floor, stage of lactation and udder shape has significant effect on caprine mastitis (p<0.05). Parameters like season, udder washing, condition of floor, farm hygiene, milk practices and housing has no significant effect on mastitis (p>0.05).

Epidemiological Study of Mastitis in Three Different Strains of Beetal Goat in Selected Districts of Punjab, Pakistan

“…Mastitis prevalence in small ruminants has been reported by Fox and Gay, 1993;Bergonier et al, 2003;Contreras et al 2003;Contreras et al 2007;Ali et al 2010;Megersa et al, 2010;Islam et al, 2011;Islam et al, 2102;Bourabah et al, 2013 andRashid et al, 2017. The current study's findings agree with outcomes of study reported by Megersa et al (2010).…”

“…The flock size has significant effect (P<0.05), as the flock size of 21-40 goats has 46.5% followed by 1-20 goat head 28.8% and more than 40 head 23.7%. This finding is very close to the results about flock size of Megersa et al 2010 andRashid et al, 2017. Body condition score has shown that there was highly significant (P<0.001) difference presenting poor and good having 42.4% and 15.2%, respectively while excellent to be 0.1%. The findings were again in agreement with Megersa et al 2010 andRashid et al, 2017.…”

“…This finding is very close to the results about flock size of Megersa et al 2010 andRashid et al, 2017. Body condition score has shown that there was highly significant (P<0.001) difference presenting poor and good having 42.4% and 15.2%, respectively while excellent to be 0.1%. The findings were again in agreement with Megersa et al 2010 andRashid et al, 2017. The calculated housing system has shown highly significant (P<0.05) effect on mastitis as open area showed 69.0% followed by backyard shed 29.4% and street presenting 0.5% mastitis prevalence.…”

“…Such variation speaks of cleaning as difficult or impossible for open area as there is no restriction for microbial contamination. The results were concordat with findings of Megersa et al 2010 andRashid et al, 2017. Farm hygiene has shown significant (P<0.05) effect on mastitis as normal 47.1% followed by very poor 33.6%, poor 16.1% and good 2.1% was observed. Table 3 depicts that as the level of farm hygiene is attaining better score, marked decline was seen in mastitis.…”

“…Sample size and sampling: Sample size was calculated from the expected prevalence of about 20% (known disease status) with confidence interval of 95% and absolute desire precision 5%. Expected prevalence of 20% was deduced from the average prevalence of goat mastitis in three previous studies (Rashid et al, 2017, Rizwana et al, 2016and Najeeb et al, 2013. The sample size was estimated using the following equation (Thrusfield, 2007).…”