Pelvimetry of multiparous Nellore cows in the cycling and early puerperal stages

Abstract

Pelvis is an osteoligamentous complex, which is classified as dolichopellic in ruminants. Impairments linked to incompatibility of pelvic canal and fetal size is directly related to pelvic anatomy and disposition. Heritability of pelvic area characteristics varies from moderate to high, demonstrating its importance for animal selection. Pelvimetry can be performed through direct and indirect methods that were accessed in this study aiming to establish a correlation between internal and external pelvic dimensions in multiparous Nellore cows (26 animals) at cycling and early puerperal (up to 30 days postpartum) reproductive stages. Pelvic dimensions measured by descriptive analysis were higher at early puerperal stage. Strong Pearson’s correlation was determined between internal and external pelvic dimensions, between reproductive stages, and between pelvic girdle area and internal pelvic area. Significant Tukey’s test differences between animals in internal and external dimensions were also found. According to the results, the pelvic anatomy of Nellore cows varies according to their reproductive stage. We detach that and provide data regarding the use of internal pelvic area for animal selection studies on this breed is determined and should be measured using the proposed formula, since it can confirm statistical differences in the areas of pelvic components between animals in the cycling and early puerperal stages.

Association of linear type pelvic traits with testicular characteristics and reproductive capability of breeding dairy bulls

“…were not recommended on the ground of parturition problems associated with narrow rump width (Cue et al, 1990;Patterson & Herring, 2017). Strong significant correlations were determined between internal and external pelvic dimensions of bulls and cows (Coopman et al, 2003;Silva et al, 2019), which indicated for utility of external pelvic morphometry as alternative measures to internal pelvic morphometry. The present study had reported age-wise changes in dimensions of PLT in breeding bulls.…”

“…Like the present investigation, pelvic traits were reported to be influenced by age, body weight, gender, breed etc. (Morrison et al, 1986;Coopman et al, 2003;Silva et al, 2019) that of Frieswal bulls. The magnitude of correlations among external pelvic measures ranged from 0.66 to 0.96 in Frieswal bulls and almost similar magnitude of associations (0.62 to 0.75) were reported in Belgian Blue bulls (Coopman et al, 2003).…”

“…Strong significant correlations have been determined between the internal and external pelvic dimensions of both bulls and cows (Coopman et al, 2003; Silva et al, 2019). This association provides an opportunity to use external pelvic dimensions as easily obtainable PLT in animals.…”

B- mode and Color Doppler sonographic appearance of pelvic tendon, ligament, and uterine blood flow in non-pregnant and heavy pregnant dairy cows

“…Ruminant pelvis is a multiple functional osteoligamentous complex structure (Oliveira et al 2003;Silva et al 2019). It encircles the birth canal as an osseous ring and limit its expansion (Tyczka 1998).…”

Relationships between the Parity and Pelvimetry of Egyptian Buffalo Cows: Prediction of Dystocia and Estimation of Age

“…Pelvimetry means the measurement of the dimensions and capacity of the pelvis, either externally, internally, or both [4]. The pelvic sizes of cows vary according to their reproductive stage [5,6]. Close correlations between calving ease and pelvic measurements and its shape *Address correspondence to this author at the College of Applied and Health Sciences, A'Sharqiyah University, P.O.…”