Estudo anatômico comparativo do útero e tubas uterinas de vacas e novilhas da raça Nelore (Bos primigenius indicus)

Monteiro, Cristina M.; Farias, Eduardo Cunha; Perri, Sílvia Helena Venturoli; Souza, Wilson Machado de

doi:10.1590/s1413-95962001000100002

Cited by 2 publications

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“…Such results disagree with those found by Honaramooz et al (2004), who observed that the size of heifer ovaries grew with age, but did not differ and there was no interaction between them. On the other hand, Monteiro et al (2008) observed that the right ovaries, both of cows and heifers, weighed more and were larger than the left ovaries, similar to the results of the present study. The right (P<0.0001; r² = 0.07318) and the left (P<0.0001; r² = 0.09453) ovaries were also positively related to weight gain.…”

Section: Discussionsupporting

confidence: 91%

Influence of age and weight of Girolando heifers on uterine and ovarian development

Fernandez

Freitas

Grillo

et al. 2020

Revista Brasileira De Zootecnia

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Reproduction Full-length research article Influence of age and weight of Girolando heifers on uterine and ovarian development ABSTRACT-The present study aimed to correlate the age and weight of Girolando heifers with uterine and ovarian development. Sixty heifers between 12 and 36 months old were weighed and subjected to ultrasound assessment to measure the diameters of each uterine horn and ovaries, monthly. These measures continued until their first ovulation. The animals were divided, for data analysis, according to their age into five groups: GI (12 to 14 months), GII (15 to 18 months), GIII (19 to 24 months), GIV (25 to 30 months), and GV (31 to 36 months). The dispersion diagram was used to assess the correlation between data collected monthly from uterus/ovaries and weight/age. An average daily growth of 0.0032 mm was recorded for the right ovary (RO) and 0.0051 mm for the left ovary (LO). The average size of the RO in GI was 17.58 mm and the LO was 15.28 mm; in GII, the RO was 16.72 mm and the LO was 15.89 mm; in GIII, the RO was 18.37 mm and the LO was 16.55 mm; in GIV, the RO was 19.09 mm and the LO was 17.49 mm; and in GV, the RO was 19.89 mm and the LO was 18.96 mm. The uterine horns showed an average daily growth of 0.0064 mm and 0.0071 mm for the right (RU) and left (LU) uterine horn, respectively. The average sizes of the uterine horns per group were:

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Section: Discussionsupporting

confidence: 91%

Influence of age and weight of Girolando heifers on uterine and ovarian development

Fernandez

Freitas

Grillo

et al. 2020

Revista Brasileira De Zootecnia

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“…With respect to the ovaries, it were found palpable structures in 51 (17 CL and 34 FL) and no palpable structure in 47 of ovarian rights and 37 palpable structures (06 CL and 31 FL) with no palpable structures 61 in the left ovary (Table 1), statistically significant difference (P <0.05) by chi-square between the number of CL found in the right and left ovaries, which is consistent with the data of Monteiro et al (2008) and Chacur, Valentim, Martinez et al (2006) those who demonstrated that a higher percentage of ovulation in the right ovary, but differs, the results found by Neves, Marques Junior, Santana et al (2002) that found that a balanced percentage frequency of CL. There was no statistically significant difference (P> 0.05) by the same test, between the number of follicles in the ovaries left and right, corroborating the data from Monteiro et al (2008) who also found no difference in the number of follicles found in both ovaries.…”

Section: Resultssupporting

confidence: 88%

“…Through comparative morphological study of ovaries from cows and heifers of Nellore, Monteiro et al (2008) reported a rate of 85% of CL in the ovaries left 60% for cows and heifers, showing also the highest frequency of ovulation in these ovaries, there was, however, statistically significant difference for the frequency of mature follicles between right and left ovaries and between cows and heifers.…”

Section: Introductionmentioning

confidence: 98%

Morphologic aspects of the genital tract from Nellore cows undergoing gynecological screening to insertion in the fixed-time artificial insemination (TAI) program

Mello

Figueiredo

et al. 2014

J Morphol Sci

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Introduction: This study aimed to evaluate the morphology of the genital tract from 98 Nellore cows by rectal palpation and combine them with the functional aspects for inclusion in a fixed-time artificial insemination (TAI) program. Methods: Were evaluated the ovaries, cervix and vulva, as well as the body condition score (BCS scale 1-5). Results: In relation to the ovaries, there were palpable structures found in 51 (17 CL and 34 FL) in the rights ovarian and 37 palpable structures (06 CL and 31 FL) in the left ovary. Asymmetry was found in 17.3% and uterine cervicitis in 20.4% of examined females. Changes were noted in vulva in 51.0% (40 to 10 papules and hyperemia) and the average of BCS was 3.15. On the basis of morphological aspects founded, 29 females with an average of BCS 2.7 and 01 with metritis were excluded and 07 (BCS-3, 5) inseminated immediately after the exam, with 61 included in the TAI program. These data support the conclusion that of all ovulations occurred, characterized by the presence of CL, most occurred in the right ovary (73.9%). The prevalence rate (51%) of vulvar aspects found, indicate a need for research of reproductive diseases in their flock. Conclusion: The BCS may impacts on the cyclicity and in the pregnancy rate of females included in the program.

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Estudo anatômico comparativo do útero e tubas uterinas de vacas e novilhas da raça Nelore (Bos primigenius indicus)

Cited by 2 publications

References 0 publications

Influence of age and weight of Girolando heifers on uterine and ovarian development

Influence of age and weight of Girolando heifers on uterine and ovarian development

Morphologic aspects of the genital tract from Nellore cows undergoing gynecological screening to insertion in the fixed-time artificial insemination (TAI) program

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