Functional effect of haemoglobin polymorphism on the haematological pattern of Gentile di Puglia sheep

New Value to Wool: Innovative Garments for Preservation of Sheep Landraces in Italy

Simple Summary

Animal landraces are historic local breeds often characterized by low production levels, so that their economic sustainability is often threatened and the risk of extinction is high. In Basilicata, southern Italy, a sheep landrace jeopardized of extinction is Gentile di Puglia. Thus, the study aimed at investigating the feasibility of a possible conservation strategy for such landrace based on the innovative use of its wool for the production of quality garments, so as to give new value to wool and allow further income to farmers. The results highlighted a possible good demand for such products, so as to reduce the difference in gross margin between Gentile di Puglia and the standardized intensively-farmed Comisana, from 57% to 3%. Such economic performance could be further improved by widening the set of fashion wool garments produced, so as to make the Gentile di Puglia even more preferable than other high-production breeds.

Abstract

In Basilicata, southern Italy, a sheep landrace jeopardized of extinction is Gentile di Puglia due to low production levels, low market values of milk and meat, and replacement of wool with synthetic fibers. Due to these dynamics farmers progressively resort to intensive breeding systems, hence causing the gradual disappearance of the ovine sector, the withering of traditional breeding culture and the abandonment of internal and marginal territories. However, in changing climate, traditional agriculture is getting increased attention worldwide by the consumers who are embracing emerging sustainable food production. Thus, in the light of a possible conservation strategy, the study investigates the prospective market for a garment (pullover) produced with wool from Gentile di Puglia, and woven through traditional techniques. An integrated methodological approach based on choice experiments and Bass diffusion model was carried out in order to analyze the consumers’ preferences, the penetration market of this innovative product and the new wool value for farmers. The results pointed out a potential demand focused on women aged 50 years and more and a recognized wool value to farmers of 55 € animal⁻¹ (22 € kg⁻¹). This new revenue could allow the reduction of the difference in gross margin between the Gentile di Puglia and the non-autochthonous intensively-farmed Comisana from 57% to 3%. The production of further wool garments for a wider demand could increase the economic sustainability of Gentile di Puglia, making it even more preferable than other highly productive breeds.

Looking for prognosticators in ovine anaplasmosis: discriminant analysis of clinical and haematological parameters in lambs belonging to differently susceptible breeds experimentally infected with Anaplasma ovis

BACKGROUND

A study was carried out to evaluate the response of different native sheep breeds to experimental infection with Anaplasma ovis, the most prevalent sheep tick-borne pathogen in Apulia (Southern Italy). Thirty-four lambs belonging to a Northern European breed (Suffolk) and two Southern Italian breeds (Comisana and Altamurana) were infected. Eleven clinical as well as haematological parameters were monitored at different temporal resolutions on the same subjects before and after the infection, resulting in a data set of 435 observations. The present work, aiming to further the research, presents the results of a multivariate analysis carried out to identify which parameters out of the eleven considered are the most reliable parameters to be considered as markers of the disease phenotype as well as prognosticators of practical clinical importance.

RESULTS

Data were analysed by discriminant analysis. Out of the eleven considered variables (red blood cells, packed cell volume, mean corpuscular volume, mean corpuscular haemoglobin, mean corpuscular haemoglobin content, haemoglobin concentration, white blood cells, neutrophils, leukocytes, platelets, rectal temperature), only seven were included in the step-wise model since significantly increasing the Mahlanobis distance between the two closest groups. Both discriminant functions resulted to be highly significant (P < 0.0001) and the percentage of variation accounted for by the first discriminant function was 63.6% of the variance in the grouping variable.

CONCLUSIONS

Taken together, the observed results stress the marked differentiation among the three breeds in terms of physio-pathological phenotypes indicating packed cell volume and red blood cell count as the most informative parameters in the routine clinical practice for A. ovis infection in sheep.

Relationships among functional markers, management, and husbandry in sheep: a Mediterranean case study

Most sheep farmers are aware of the importance of monitoring animal health and well-being for profitable sheep production. Unfortunately, there are only a few benchmarked functional measures of sheep well-being but much can be gained from our understanding of other species. Moreover, comprehensive monitoring programs may be complex and relatively expensive to implement. Hence, this work reports the results of a research study on the usefulness of functional markers in measuring dairy sheep well-being, taking into account farm management and environmental conditions. The study was conducted on 11 farms breeding Italian islander sheep breeds. The husbandry and management parameters of each farm were assessed and, based on the findings, the farms were scored in ascending quality order. Flock information concerned housing, milking system, pen size, grazing hours, health management, and stockmanship. Medical history, clinical data, the most relevant haematological, chemical and biochemical parameters, as well as the haemoglobin genotype were recorded for 415 individuals. The whole data-set was analyzed by Spearman correlation and multivariate statistical procedures, showing that albumin, serum alkaline phosphatase, haematocrit, and haemoglobin were the most significant functional markers of a flock's general conditions. Haematocrit and haemoglobin reflect animal health status, while albumin and serum alkaline phosphatase are a measure of nutritional status and physical activity, respectively. These are objective parameters, which can be easily measured from blood samples and have proved to be effective for grouping to interpret animal well-being.