Ciencias Agropecuarias

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Has files: YesSubject: search.filters.subject.CONDICIÓN CORPORAL

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    Efecto del acetato de medroxiprogesterona y benzoato de estradiol, sobre la emergencia folicular en cabras con baja condición corporal
    (2019-03) Tirado Vaca, Mercy Mariela; Aragadvay, Gonzalo
    The present study was conducted in goats of body condition 2 (CC 2) in the faculty of Agricultural Sciences of the Technical University of Ambato, a total of 12 goats were previously evaluated by trans-rectal ultrasonography and were randomly distributed in 4 groups (T1, T2, T3, T4); in which the effect of medroxyprogesterone acetate (AMP) sponge intra-vaginal, at different time of withdrawal with and without application of estradiol benzoate (BE) on the follicular dynamics was evaluated, emergence of the follicular wave, expressiveness of the heat and percentage of gestation. The treatments were applied to day 0 all the females received an intra-vaginal sponge (60 mg of AMP) during 11 days for two groups (T1, T2), and 14 days for the remaining two groups (T3, T4). The T1 and T3 treatments received 1mg of BE (IM) on the same day of the intra-vaginal sponge application and one day after the extraction of the same, a second dose of BE (0.5mg) was applied to induce the ovulation. The ovarian response was monitored daily by trans-rectal ultrasound from day 0 to day 14 (T1 and T2) and 17 (T3 and T4) days given mount directly, subsequently, the plasma concentration of 17β- estradiol was measured on the final day of treatment and correlated with follicular size, vaginal cytology was performed to confirm the presence of estrus and 35 days after direct mounting, ultrasound was performed to check for pregnancy. A 2x2 factorial design (day of intra-vaginal sponge removal and BE application) was used and the variables were analyzed by means of an ANOVA. In conclusion, treatment with AMP combined with BE, does not improve follicular size, however there is a low conception for these treatments (T1, T3), while the use of AMP without combining with BE has a better conception, so in goats fertility is not affected in relation to low body condition.
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    Estimación de la grasa dorsal y la condición corporal en cerdas utilizando medidas e índices morfométricos
    (2018) Boada Alvarez, Mery Fernanda; Núñez, Patricio
    The objective of the study was to build a model to estimate body condition by dorsal fat thickness and zoomometric measurements; Thus, 133 Yorkshire sows aged 6-12, from 13-18 and older than 18 months were evaluated, evaluating different zoomometric measurements such as: raised to the cross (AC), raised to the rump (AEG), width of the posterior rump (AIIS), body length (LEI), sternal back elevation (ADE), thoracic perimeter (PRT), anterior reed perimeter (PCA) and bicostal perimeter (PBC); At the same time, the thickness of dorsal fat located at the level of the last rib was obtained through ultrasound (linear probe at 6.5 Mhz) at 4.6 and 8 cm from the midline both to the right side and to the left side. All these data were subjected to a normality test that allowed to know that it was a parametric analysis, followed by a Pearson correlation study and finally a multiple regression analysis that yielded several equation models to obtain the value of dorsal fat thickness and by means of this value estimate body condition; Selecting the model that best fits the parameters studied obtained within it the variables AC, PRT and number of births.