A CAEV epidemiological model for goat breeding

Pittavino, Marta; Ferreri, Luca; Giacobini, Mario; Bertolotti, Luigi; Rosati, Sergio; Venturino, Ezio

doi:10.1016/j.amc.2013.11.030

Cited by 9 publications

(13 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Table 2. The equations for calculating the reproductive parameters, adapted from Pittavino et al (2014) [11].…”

Section: Calculation Of Reproductive Parametersmentioning

confidence: 99%

“…Seven reproductive parameters were calculated, following Pittavino et al [11] ( Tables 2 and 4). Seasonality of reproduction has been reported previously in northern Morocco [9,22] and in the current study kidding was concentrated between November and February (66% of kidding occurred during this period).…”

Section: Reproductionmentioning

confidence: 99%

“…Seven reproductive parameters were calculated, following Pittavino et al [11] (Table 2), as reproductive performance and a high rate of parturition are key drivers for continued lactation for dairy production and the production of offspring for meat production [12]. These reproductive parameters included herd fertility rate (the proportion of does becoming pregnant within a year), herd prolificacy (the ratio of kids born to the number of females becoming pregnant within a year; a prolificacy greater than one indicates the occurrence of multiple births by does), herd fecundity (the product of fertility and prolificacy, indicating the ratio between the number of kids born and the total number of does in the herd), new birth rate (the proportion of kids born that survive to weaning), herd reproduction rate (the product of new birth rate and fecundity, indicating the ratio of kids surviving to weaning to the total number of does in the herd), herd replacement rate (the rate that kids need to be introduced into the herd to replace all goats removed from the herd due to mortality, slaughter or sale; this is inversely proportional to the total number of kids surviving to weaning per doe lifetime), reproductive life of the doe (the number of years the doe is reproductively active for) and the lifetime productivity of the doe (the total number of surviving kids produced in a doe's lifetime).…”

Section: Calculation Of Reproductive Parametersmentioning

confidence: 99%

See 2 more Smart Citations

Intensification of Mediterranean Goat Production Systems: A Case Study in Northern Morocco

et al. 2016

View full text Add to dashboard Cite

Goats are important contributors to both food and financial security of the resource poor, particularly in marginal environments such as those in the Mediterranean region. To fully understand the feasibility and potential consequences of any intensification or husbandry changes that could contribute to higher outputs, it is important to have a thorough prior understanding of the functional dynamics of these systems. Here the current performance of ten goat holdings in the northern region of Morocco, classified as either commercial milk producers, commercial cheese producers or non-commercial dairy producers, was recorded, based on the Food and Agricultural Organisation and International Centre for Advanced Mediterranean Agronomic Studies (FAO-CIHEAM) technical and economic indicators, to assess whether intensification of dairy production was financially viable. Fecundity and prolificacy rates were comparatively lower than those achieved by many European Mediterranean herds. Both kid and doe mortality were higher on commercial dairy holdings, where dairy sales provided an additional, rather than alternative, source of income to goat sales. Despite this, due to significantly higher expenditure on supplementary feed, gross margin per doe did not differ significantly between holding types. With the exception of indigenous Greek herds, all European Mediterranean herds outperform those of northern Morocco. The study suggests that a low level of supplementary feeding is constraining goat dairy production in northern Morocco, and that the current high cost and limited availability of additional supplementary feed restricts the financial viability of intensification. Alternative feeding strategies within a participatory approach that might ameliorate these problems, and value chain constraints, are discussed.

show abstract

“…Table 2. The equations for calculating the reproductive parameters, adapted from Pittavino et al (2014) [11].…”

Section: Calculation Of Reproductive Parametersmentioning

confidence: 99%

Section: Reproductionmentioning

confidence: 99%

Section: Calculation Of Reproductive Parametersmentioning

confidence: 99%

See 1 more Smart Citation

Intensification of Mediterranean Goat Production Systems: A Case Study in Northern Morocco

et al. 2016

View full text Add to dashboard Cite

show abstract

“…najczęstszych dróg infekcji można zaliczyć transfer pionowy z matki na koźlę poprzez spożycie zainfekowanej siary i mleka lub drogę kropelkową (4,12). Występowanie wirusa CAE stanowi duży problem dla hodowców i producentów, ponieważ charakteryzuje się długim okresem inkubacji, co powoduje że objawy kliniczne nie są widoczne, pomimo że kozy są już zarażone wirusem (19).…”

unclassified

“…Występowanie wirusa zapalenia stawów i mózgu kóz jest problemem ogólnoświatowym i powoduje znaczne straty wśród małych przeżuwaczy, ponieważ zakażone kozy produkują mniej mleka, są słabsze i bardziej podatne na inne choroby (16,19). Do chwili obecnej nie zostały opracowane żadne szczepionki ani terapie, które pozwalałyby zwalczać tę chorobę.…”

unclassified

Prevalence of CAEV infections in goat herds

Gruszecki

Olech

Kuźmak

et al. 2018

Medycyna Weterynaryjna

View full text Add to dashboard Cite

The aim of the study was to analyze the occurrence of caprine arthritis encephalitis virus (CAEV) in white improved goats, colored improved goats, Saanen goats, Alpine goats and Boer goats, raised in three regions of Poland. The analysis of CAEV infection levels was carried out in goat herds from the provinces in mid-Eastern Poland. The analysis included four goat herds. In total, they encompassed 251 herds of the following breeds: white improved goat, colored improved goat, Saanen goat, Alpine goat and Boer goat. The identification of the infected animals and the assessment of the epidemiological condition of the herds was carried out using serological analysis of blood serum samples. The assay of CAEV-specific antibodies in blood serum was performed using ELISA test. As a result of the observations it was established that with regards to the provinces, the prevalence level ranged from 35.40% in Mazowieckie province to 81.10% in Lubelskie province, and the average infection rate of animals in the studied region was 51.60%. As far as the breeds are concerned, it was found that the observed infection rate of the Saanen goat population was significantly higher (p ≤ 0.05) than the rates for improved white goat (48.90%) and Alpine goat (50.00%). In relation to the colored improved goat, the calculated statistical difference was greater (p ≤ 0.01), and the percentage of infected animals was 32.10%. The analysis of the infection rate in the Boer goat herd revealed that 66.70% of animals are seropositive, and the statistical analysis did not show any significant differences in prevalence compared to other studied breeds. To sum up, it should be noted that the improvement of the situation may be attributed to consistent examination of goats and development of CAEV-elimination programs for herds. When creating programs aimed at the elimination of the virus it is also important to remember to raise the awareness of the farmers with regards to the detrimental effect of CAEV infections..

show abstract