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Reproductive technologies and animal welfare.
No full textIn general, animal welfare and reproduction are strictly related. Numerous studies have reported that both chronic
and acute stress and the associated reduced level of animal welfare may impair the reproductive functions in both males
and females. For instance, stress can reduce the secretion of gonadotropin-releasing hormone (GnRH) by the hypothalamus
and consequently decrease the production of luteinizing hormone and follicle-stimulating hormone (FSH) by the
hypophysis and sex steroids from the gonads induce ovulation failure and the formation of cystic follicles . As a
consequence, a decreased libido is detected in males and reduced fertility and lack of embryo implantation are
observed in females. Conversely, how reproductive management practices may affect animal welfare has received
much less attention so far. In particular, when breeding technologies are applied, three distinct elements have to be considered
and the synergic effect they can produce on the animals: handling, restraint, and the application of the breeding
technology per se. Reproductive technologies have been developed in the last 60 years, and therefore, the animals are
unlikely to possess any innate adaptive mechanism to cope and generally perceive them as adverse. However, modern
reproductive technologies may also favor animal welfare by minimizing the effect of unfavorable events (e.g., dystocia,
mortality). Therefore the present chapter aims at identifying the most common practices and assessing the impact, either
positive or negative, of these reproductive technologies on animal welfare
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Relevance of animal-based indicators for the evaluation of sheep welfare as perceived by different stakeholders
No full textDespite its importance little is known about the attitudes of different stakeholder categories towards issues that impact the welfare of sheep. This study determined the relevance attributed by various stakeholders to different sheep welfare indicators and assessed which demographic characteristics can influence their scores. Data were collected through a questionnaire presented on paper face-to-face to 15 sheep farmers in Italy during farm visits in June and July 2020 and the same questionnaire was transferred online to a Google Form and an announcement was sent by email and on social platforms to consumers, with a total of 311 respondents completed the questionnaire. The survey was composed of two parts. In the first part respondents were asked to declare their demographic characteristics. In the second part they rated the relevance attributed to eleven indicators of sheep welfare (eight animal-based: leanness, fleece condition, fleece cleanliness, skin lesions, tail docking, lameness, hoof overgrowth, occurrence of mastitis; and three resource-based: insufficient clean drinking water availability, thermal discomfort, access to pasture) using a ten-point Likert scale. An ordinal logistic regression descending function with stepwise selection was used to analyze the effects within demographic data and the distribution of the Likert scale for each indicator. The number of respondents (n = 311) was quite small, nevertheless, the differences that are reported give some guidance on the relative importance accorded to each of these groups of stakeholders to each of the welfare indicators. Female respondents gave higher relevance to most of the indicators compared with male respondents (P < 0.05), whereas respondents with a lower education level gave more relevance to four out of the eleven welfare indicators compared with stakeholders with a higher education level (P < 0.05). As for respondent categories, non-farmer experts attributed more relevance to lameness, whereas farmers gave a lower relevance to tail docking, while expressing a higher level of concern for leanness compared with the other categories (P < 0.05). Finally, more frequent consumers of sheep products considered leanness to be most important (P < 0.05). No significant difference was found based on the nationality or the work declared. This study provides information about how different stakeholder categories perceive different aspects of sheep welfare and whether this perception is affected by demographic characteristics, thus promoting informed dialogue between society and the scientific community about the relevance to be attributed to different sheep welfare indicators
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Effect of pre-partum habituation to milking routine on behaviour and lactation performance of buffalo heifers
No full textThe aim of this study was to investigate the effect pre-partum habituation in the milkingparlour on behaviour and lactation performance of buffalo heifers. Sixteen buffalo heifersin late gestation were used for this study. The animals, with an age ranging from 30 to44 months at the start of the study, were equally allocated into two treatments and bal-anced for estimated calving date. Eight animals received pre-partum habituation for 10 daysbefore the estimated calving date (group H), while the eight others received no treatmentand served as the control (group C). During the pre-partum habituation sessions, group Hanimals were moved to the milking parlour and left for 10 min in the milking stall onceeach day, where the udder was thoroughly washed with warm water, wiped with a dis-posable towel and massaged. The behaviours, registered from entrance into the milkingstall to exit, were step and kick. After calving milk flow profiles, milk yield and milk qual-ity variables were determined along with behavioural recordings. The H animals duringthe habituation procedure showed a reduction in the number of steps (P < 0.001) and kicks(P < 0.01). After calving the H animals performed fewer steps than the control animals at 0(P < 0.001), 3 (P < 0.01), 6 (P < 0.01), 13 (P < 0.01) and 20 (P < 0.01) days after calving. Animalsfrom group H also performed fewer kicks than control animals at 0 (P < 0.001), 3 (P < 0.01),6 (P < 0.01) and 13 (P < 0.01) days after calving. In the C group a reduction in the numberof steps (P < 0.001) and kicks (P < 0.001) was observed as lactation proceeded, whereas forgroup H only a tendency for a reduction over lactation was detected. Pre-partum habitu-ation did not significantly affect milk quality or milk flow variables. Milk yield in the first3 min of milking (P < 0.001), and average milk flow (P < 0.001), increased throughout theexperimental period, whereas the duration of the pre-milking phase decreased as lactationproceeded (P < 0.001). This study shows that buffalo heifers exposed to a pre-partum habit-uation programme performed fewer steps and kicks than control animals during milking.Therefore, it is concluded that using this treatment can reduce the level of restlessness inbuffalo heifers during milking
Influences of various factors on cows’ entrance order into the milking parlour
No full textThis study investigates the stability of the milking order of cows entering into the milking parlour of a commercial dairy herd, and changes to this order consequent to a change in health status and a change in the membership of the group of cows being milked. In large herds it is difficult for stockmen to monitor all cows closely. If changes in the milking order are indicative of health or other problems, the monitoring of any changes in the order could alert stockmen to such problems. This could therefore be a tool to add to the parameters collected routinely in precision livestock farming (PLF). The milking process of 692 cows, in seven different feeding groups, over a period of six months, was monitored. The milking order was found to be stable within days, and across days, but was more variable within milking sessions. Cows with mastitis (P < 0.001) entered the parlour later than when they were healthy. Cows with metritis entered into the milking parlour earlier than usually(P < 0.05). When new cows entered a group they fitted into a stable position within the parlour entrance order within two days. There were no effects found of parity, age, days in milk, milk production or milking duration on the milking order. It is concluded that theregular monitoring of milking order, and flagging of changes in this order could be a useful tool in the early identification of the presence of disease in cow
Human–Animal Interactions in Dairy Goats
Get PDFIt is widely assumed that the quality of human–animal interactions may have a strong impact on animals’ living conditions and is fundamental to improving farm animal welfare. This work aims to evaluate the effectiveness of methods for assessing and monitoring the welfare of lactating goats. In particular, attention was paid to the methods regarding the assessment of the human–animal relationship. The experimental protocol included three tests and observations in the milking parlour, namely: avoidance distance in the pen, avoidance distance at the manger, approach test within 2 min and behavioural observations of stockmen and animals during milking. Fourteen dairy goat farms located in the province of Potenza (Southern Italy) with flocks ranging in size from 67 to 450 lactating goats were used. All farms raised the Rossa Mediterranean goat breed. The percentage of goats that permitted themselves to be touched at the manger (mean ± SD: 12.36 ± 9.50) was higher than that found in the pen (9.67 ± 11.86) and within 2 min inside the pen (8.19 ± 13.78). The avoidance distance at the manger (0.63 ± 0.28 m) was shorter than that recorded in the pen (1.19 ± 0.58 m). Avoidance distance at the manger was positively correlated with that in the pen (Spearman correlation test (rs) = 0.607; p 1 m (rs = 0.799; p < 0.001) and was negatively correlated with the animals touched at the manger (rs = −0.607; p < 0.05), in the pen (rs = −0.613; p < 0.05) and within 2 min (rs = −0.669; p < 0.01). As regards the degree of association between the behaviour of the milker and the animals during the milking routine, the percentage of neutral interactions tended to be positively correlated only with the number of kicks performed by the animals (rs = 0.476; p < 0.10). It is concluded that avoidance distance at the manger and in the pen, as for other farm animals, are valid tests to evaluate the human–animal relationship in goats. In addition, avoidance distance at the manger may reliably replace the test performed in the pen
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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