Repositori Obert UdL
The institutional repository collects, manages, disseminates and preserves publications in open access derived from the academic and research activity of the University of Lleida.
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Open Access
A negative energy balance during the peri-implantational period reduces dam IGF-1 but does not alter progesterone or pregnancy-specific protein B (PSPB) or fertility in suckled cows
(Elsevier, 2020-07) Noya Clavé, Agustí; Casasús Pueyo, Isabel; Rodríguez-Sánchez, Alfonso; Ferrer Achiaga, Javier; Sanz Pascua, Albina
The aim of this study was to evaluate the effect of a negative energy balance during the first third of gestation on metabolic, endocrine, and pregnancy recognition parameters in 2 beef cattle breeds adapted to semiextensive conditions. Seventy-five lactating Parda de Montaña and 40 Pirenaica multiparous cows rearing calves were synchronized and timed artificial inseminated (TAI) on day 76 postpartum. Cows were assigned to one of 2 diets (CONTROL or SUBNUT; 100% or 65% of their requirements supplied) until day 82 of gestation. Pregnancy was diagnosed 37 d post-TAI using ultrasound. Blood samples were obtained to determine metabolic (glucose, NEFA, b-hydroxybutyrate, cholesterol, and urea) and endocrine (IGF-1) status throughout the first third of gestation and to determine the concentrations of progesterone and pregnancy-specific protein B (PSPB) in the periimplantational period. Undernutrition affected both cow and calf performance. The CONTROL cows maintained BCS and BW, whereas SUBNUT cows had negative daily gains. The CONTROL lactating calves had higher BW gains than SUBNUT. These negative effects were more evident in the Pirenaica breed, which was more sensitive to under nutrition. The negative energy balance was reflected in the cows’ metabolic profiles, with higher NEFA values and lower IGF-1 concentrations in SUBNUT cows. However, undernutrition did not affect dam pregnancy/TAI or pregnancy recognition and maintenance, confirming that during periods of undernourishment pregnant dams prioritize the allocation of dietary energy toward reproductive functions. Progesterone concentration on day 21 post-TAI (with a 4.8 ng/mL cut-off value) and PSPB on day 26 post-TAI (with a 0.57 ng/mL cut-off value) were determined as the earliest indicators to accurately establish dam pregnancy status, regardless of breed or nutrition treatment. In summary, early undernutrition affected cow performance and metabolic profiles and impaired lactating calf growth, but did not affect progesterone or PSPB concentrations or the pregnancy/TAI rate in suckled cows.
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Open Access
Dones africanes pel benestar: més enllà de la lluita contra la pobresa
(Edicions de la Universitat de Lleida, 2021) Roca Álvarez, Albert; Cisse, Rokhaya; Padrão Temudo, Marina; Talhinhas, Pedro; O’Laughlin, Bridget; Rajaonah, Faranirina V.
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Open Access
De la “llegenda” de la reina Esther a la Primera història espriuana
(Edition Reichenberger, 2019) Veny-Mesquida, Joan R.
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Open Access
The Third Half: a positive psychoeducational program to promote well-being and mental health among early career researchers
(Universidad de Córdoba, 2024) Jiménez-Villamizar, María Paola; Tejada Gallardo, Claudia; Becerra-Rojas, Angelica; Devoto-Araya, Maximiliano; Fernández-García, María; López-García, Rodrigo; Bonilla, Iván; Tadić Vujčić, Maja; Mol, Stefan T.; Sanz-Ruiz, Antoni; Muro-Rodriguez, Anna
The decreasing well-being among doctoral candidates, coupled with a high prevalence of distress problems, is a topic of increasing concern in the field of higher education and research policy. The present study aimed to replicate, implement, and evaluate the effectiveness of The Third Half, a multi-component psychoeducational program in doctoral students. To address the limitations of the pilot study, we conducted a non-randomized controlled study using a repeated measures pre-post design with a total of 97 participants (Mage = 32.5; SD = 8.23), of whom 26 participated in the experimental group. Results showed that Third Half program participants reported significant decreases in indicators of negative affect (F = 4.01; p = .04) and anxiety (F = 4.95; p = .02) compared to the general control group; in the matched sample analysis (n = 20) significant decreases were found in indicators of negative affect (F = 4.72; p = .03), anxiety (F = 4.09; p < .001), and depression (F = 4.95; p = .03). It is concluded that the Third Half program is an effective and implementable psychoeducational program to improve the skills of early-career researchers in wellness management.
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Open Access
The development of social sustainability through traditional sporting games. A temporal approach with the Elbow Tag
(Public Library of Science, 2024) Lavega i Burgués, Pere; Luchoro Parrilla, Rafael; Pla Pla, Paula; Pic, Miguel
This manuscript is based on two studies that investigate the process of social construction of time in the two versions of traditional sports game (TSG) known as Elbow Tag. The internal logic of this TSG has an original role-change system. Changing a rule in version 1 (V1) implies a major modification of the role system in V2. It is a mixed methods design employing an associative and interpretive strategy. It involved 140 participants in two eight-minute games V1 and V2. Different statistical techniques (cross-tabulations, classification trees, T-Patterns) were used to analyse data on motor behaviours (external observation), and content analysis of the strategic and emotional meaning of motor conducts (internal gaze). Multidimensional internal temporal units were used: changes of subroles, (cognitive) number of interactions (relational) and time required for different physical efforts (organic). The temporal plot is constructed by deciphering the exchanges between the Cat, Mouse and Pitcher roles. In V1 and V2 of the Elbow Tag game, each Role caused a singular and multidimensional subjective time. This fact can be observed through the strategic chains, their decisional and emotional interpretation. The findings favour an innovative physical education, in order to educate the students’ temporal motor conducts.