Impact of polymorphisms at the PRNP locus on the performance of dairy goats reared under low-input pastoral farming systems

Vouraki, Sotiria; Gelasakis, Athanasios Ι.; Ekateriniadou, Loukia; Banos, Georgios; Arsenos, G.

doi:10.1016/j.smallrumres.2019.03.014

Cited by 2 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Each goat was then hand-milked into a bucket, the milk was weighed, and a milk sample was collected from the milking bucket to assess SCC and milk composition (fat, protein lactose, and solids-non-fat (SNF) content). Sampling and analyses of milk samples have been described in detail in previous studies [7,29,30].…”

Section: Phenotypic Data and Recording Protocolsmentioning

confidence: 99%

Repeatability of Health and Welfare Traits and Correlation with Performance Traits in Dairy Goats Reared under Low-Input Farming Systems

Vouraki

Gelasakis

Fotiadou

et al. 2022

Veterinary Sciences

Self Cite

View full text Add to dashboard Cite

The objectives of the study were to estimate the repeatability of health and welfare traits and investigate their association with performance in three breeds of dairy goats reared under low-input farming systems in Greece. A total of 1210 goats of Eghoria (n = 418), Skopelos (n = 429), and Damascus (n = 363) breeds were assessed. Udder health, parasitic resistance, welfare, milk yield and quality, and body condition score were recorded monthly for two milking periods. Udder health records included somatic cell count (SCC) and total viable count (TVC). Based on combinations of SCC and TVC and thresholds set at >106 cells/mL and >2 × 104 cfu/mL, respectively, additional udder health phenotypes were defined. Parasitism included myiasis, tick infestation, gastrointestinal nematode (GIN) and cestode faecal egg count (FEC), and lungworm faecal larval count (FLC). Infection with each of the endoparasites was defined based on FEC/FLC. Welfare assessment parameters included the presence of ear and horn injuries, ocular and nasal discharge, body and udder abscesses, injury and lesions on the skin of different regions, diarrhoea, hernias, overgrown hooves, arthritis, lameness, and udder asymmetry. Trait repeatability and animal correlations were estimated. Significant (p < 0.05) repeatability was reported for all udder health and most welfare traits in all breeds, GIN and cestode FEC, and GIN and lungworm infection in Eghoria, and myiasis in Skopelos. Correlations of health and most of welfare traits with performance were non-significant or favourable. Overall, results demonstrate potential to improve health and welfare of the studied breeds without compromising performance.

show abstract

Section: Phenotypic Data and Recording Protocolsmentioning

confidence: 99%

Repeatability of Health and Welfare Traits and Correlation with Performance Traits in Dairy Goats Reared under Low-Input Farming Systems

Vouraki

Gelasakis

Fotiadou

et al. 2022

Veterinary Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…Vouraki et al (2018) reported frequencies of approximately 6% for the resistant allele 222K estimated over a larger population sample (n = 551 goats) of two indigenous Greek breeds (Eghoria and Skopelos). A follow-up study on the same dataset found no associations of allele 222K with dairy traits (Vouraki et al, 2019). Thus, selection for the resistant allele 222K is not expected to have adverse effects on dairy goat traits and could be the basis for the development of a breeding program to enhance scrapie resistance in the two breeds.…”

mentioning

confidence: 95%

Genetic improvement of indigenous Greek sheep and goat breeds

Argyriadou¹,

Gelasakis²,

Banos³

et al. 2020

J Hellenic Vet Med Soc

View full text Add to dashboard Cite

The objective of the study was twofold: (i) to review the genetics of production and resilience traits of indigenous Greek small ruminant breeds as well as the evolution of national breeding programs, and (ii) explore innovative and feasible approaches to overcome the challenges and constraints towards improving these breeds and enhancing the sustainability of the small ruminant sector. Previous studies on the genetic basis of production and resilience traits of indigenous breeds revealed high improvement potential. However, the lack of follow-up action has failed to produce applicable results. Thus, implementation of scientific findings in existing breeding programs for these breeds is extremely limited. The latter has contributed to the overall poor success of such programs. Furthermore, due to the fact that most farmers do not comprehend the strategic importance of genetic improvement and lack motivation for self-funding, breeding programs have mostly relied on European or government funding; the latter has resulted in intermittent implementation. Therefore, most programs failed to improve performance of indigenous Greek breeds, many of which were consequently replaced by foreign breeds of higher productivity and documented merit. In order to facilitate the design of breeding schemes and overcome the challenges towards improvement of indigenous breeds, an integrative approach is necessary. The latter should be based on identification of specific breeding objectives, reflecting the priorities and needs of the sector, as well as the capacity of the indigenous populations. Scientific advances exemplified by genomic selection and novel reproductive technologies will enable faster and more effective genetic improvement. The overall approach is expected to enhance the competitiveness of indigenous Greek small ruminant breeds and the sustainability of the sector.

show abstract

Impact of polymorphisms at the PRNP locus on the performance of dairy goats reared under low-input pastoral farming systems

Cited by 2 publications

References 26 publications

Repeatability of Health and Welfare Traits and Correlation with Performance Traits in Dairy Goats Reared under Low-Input Farming Systems

Repeatability of Health and Welfare Traits and Correlation with Performance Traits in Dairy Goats Reared under Low-Input Farming Systems

Genetic improvement of indigenous Greek sheep and goat breeds

Contact Info

Product

Resources

About