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Effect of passive transfer status on preweaning growth performance in dairy goat kids
No full textObjective-To evaluate the effect of passive transfer status (determined from measurements of serum IgG concentration at 24 hours after parturition [slgG-24]) on preweaning growth performance in dairy goat kids. Design-Prospective observational study. Animals-20 healthy nursing dairy doe kids in a natural nonintensive breeding environment. Procedures-For each kid, slgG-24 was measured. Body weight was measured at birth and at the time of weaning 30 days (ie, 29 to 31 days) after birth; average daily gain from birth to day 30 and weight at day 30 were used as measures of preweaning growth performance. Regression analysis was used to evaluate associations between slgG-24 and measures of preweaning growth performance. Results-Mean ±SD slgG-24 was 31.7 ±10.3 mg/mL Mean body weights at birth and weaning were 4.105 ±0.981 kg (9.031 ±2.158 Ib) and 9.310 ±2.554 kg (20.482 ±5.619 Ib), respectively; average daily gain was 0.174 ±0.072 kg/d (0.383 ±0.158 Ib/d). No significant association was detected between slgG-24 and birth weight. However, slgG-24 was significantly associated with average daily gain (R2 = 0.48) and weight at day 30 (R2 = 0.56). Each increase in slgG-24 of 1 mg/mL was associated with an increase in average daily gain of 0.005 kg/d (0.011 Ib/d) and an increase in weight at day 30 of 0.185 kg (0.407 Ib). Conclusions and Clinical Relevance-Results indicated that passive transfer status (determined as slgG-24) was a significant source of variation in preweaning growth performance in dairy doe kids reared in this nonintensive breeding environment
EFFECT OF PASSIVE TRANSFER STATUS ON PREWEANING GROWTH PERFORMANCE IN DAIRY GOAT KIDS
No full textOBJECTIVE: To evaluate the effect of passive transfer status (determined from measurements of serum IgG concentration at 24 hours after parturition [sIgG-24]) on preweaning growth performance in dairy goat kids.
DESIGN: Prospective observational study.
ANIMALS: 20 healthy nursing dairy doe kids in a natural nonintensive breeding environment.
PROCEDURES: For each kid, sIgG-24 was measured. Body weight was measured at birth and at the time of weaning 30 days (ie, 29 to 31 days) after birth; average daily gain from birth to day 30 and weight at day 30 were used as measures of preweaning growth performance. Regression analysis was used to evaluate associations between sIgG-24 and measures of preweaning growth performance.
RESULTS: Mean +/- SD sIgG-24 was 31.7 +/- 10.3 mg/mL. Mean body weights at birth and weaning were 4.105 +/- 0.981 kg (9.031 +/- 2.158 lb) and 9.310 +/- 2.554 kg (20.482 +/- 5.619 lb), respectively; average daily gain was 0.174 +/- 0.072 kg/d (0.383 +/- 0.158 lb/d). No significant association was detected between sIgG-24 and birth weight. However, sIgG-24 was significantly associated with average daily gain (R(2) = 0.48) and weight at day 30 (R(2) = 0.56). Each increase in sIgG-24 of 1 mg/mL was associated with an increase in average daily gain of 0.005 kg/d (0.011 lb/d) and an increase in weight at day 30 of 0.185 kg (0.407 lb).
CONCLUSIONS AND CLINICAL RELEVANCE: Results indicated that passive transfer status (determined as sIgG-24) was a significant source of variation in preweaning growth performance in dairy doe kids reared in this nonintensive breeding environmen
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“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
Full text linkWe 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
Serotonin trasporter genedeficiency is associated with sudden death of newborn mice throughactivation of TGF-beta1 signalling.
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