Gestation Period of the Collared Peccary

Sowls, Lyle K.

doi:10.2307/1377069

Cited by 11 publications

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“…Estes se acasalam durante todas as épocas do ano e normalmente nascem de 2 a 3 filhotes, em cada gestação. Tanto o cateto quanto o queixada atingem maturidade sexual com 10 meses de idade (Sowls 1984, Sowls 1961e Wislocki 1931. Hellgren et al (1989) citam que as concentrações séricas de testosterona e as mensurações testiculares de catetos machos adultos variam em uma baixa amplitude no modelo circanual, com médias máximas de concentração de testosterona no outono e inverno (1150-1400pg/ml), no entanto, as características do sêmen não apresentam essas variações.…”

Section: Introductionunclassified

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Aspectos macroscópicos e morfométricos dos testículos em catetos e queixadas

et al. 2004

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Macroscopic and morphometric features of testicles in collared peccary and white-lipped peccary. This work aims to describe the morphometrical aspects on the testicles of the collared peccary and white-lipped peccary. The material derived from the Devaneio Pro-Fauna Farm, Iguape, SP (Reg.1/3593/08480). From 33 white-lipped peccary and 20 collared peccary after the slaughter, the testicles were removed and morphometric information was taken like: length, width and thickness (with the help of a pachymeter). Testicles are oval shaped, located into the pelvic region, laying dorsocaudally and they have intermediary position. The mediastinun testis is in the center of the testis and ends on the capitata extremity. The adult white-lipped peccary has 30.92 ± 3.82 kg in average and 78.89 ± 4.77 cm of length and the young has 22.93 ± 2.07 kg and 71.57 ± 3.95 cm of length. Results obtained show that in the adult white-lipped peccary group, the right testicle measured, in average, length, width and thickness of 5.36 ± 0.64cm, 3.64 ± 0.64cm and 3.30 ± 0.52cm respectively while the left testicles measured, in average, 5.45 ± 0.77cm, 3.68 ± 0.59cm and 3.32 ± 0.54cm. In the young group the testis measured in average 3.20 ± 0.44cm, 2.12 ± 0.26cm and 2.11 ± 0.40cm, to right testis and 3.23 ± 0.47cm, 2.21 ± 0.39cm and 1.99 ± 0.36cm, to left testis, to length, width and thickness, respectively. As per the collared peccary, the right testicles measured, in average, 4.36 ± 0.38cm; 2.74 ± 0.27cm and 2.33 ± 0.46cm respectively for length, width and thickness, when for the left ones measures were 4.19 ± 0.36cm, 2.68 ± 0.31cm and 2.34 ± 0.28cm. The data does not have significative difference (p<0.05) between right and left testicular measurements using the Qui-square test.Key words: collared peccary, white-lipped peccary, testicles, genitals, Tayassu. ResumoAspectos macroscópicos e morfométricos dos testículos em catetos e queixadas. Este trabalho objetiva fornecer dados macroscópicos e morfométricos dos testículos dos catetos e queixadas. O material utilizado consistiu de catetos e queixadas oriundos da Fazenda Devaneio Pró-Fauna, Iguape, SP (Reg.1/3593/08480). Em 33 queixadas e 20 catetos, após o abate, os testículos foram colhidos e tomados dados morfométricos como: comprimento, largura e espessura (com o auxílio de um paquímetro). Os testículos são ovalados, localizados na região pélvica, inclinados dorso-caudalmente e possuem posição intermediária. O mediastino testicular esta no centro do testículo, ligeiramente desviado para a margem epididimária deste, e termina na extremidade capitata. Os queixadas adultos possuem em média 30,92 ± 3,82 kg de peso corporal e 78,89 ± 4,77 cm de comprimento corporal, enquanto os jovens apresentam 22,93 ± 2,07 kg e 71,57 ± 3,95 cm de comprimento. Os resultados demonstram que no grupo de queixadas adultos estudado o testículo direito teve comprimento, largura e espessura médios de 5,36 ± 0,64cm; 3,64 ± 0,64cm e 3,30 ± 0,52cm respectivamente, enquanto que o esquerdo teve 5,45 ± 0,77cm; 3,68 ± ...

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Section: Introductionunclassified

“…A criação desses animais em cativeiro possibilitou observações a respeito da época de nascimento, comprimento e freqüência do ciclo estral, período de gestação e idade de nascimento. Esses dados indicaram um alto potencial na capacidade reprodutiva das espécies (Sowls 1961).…”

Section: Introductionunclassified

Aspectos macroscópicos e morfométricos dos testículos em catetos e queixadas

et al. 2004

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“…On the maternal side, the connective tissue cells showed only weak reactions in all of the placentas studied (Figs. [2][3][4].…”

Section: Resultsmentioning

confidence: 99%

“…The peccaries are polytocous with a gestation periods of 144 to 148 days and normally with 2 offspring per parturition [2].…”

Section: Introductionmentioning

confidence: 99%

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VEGF system expression by immunohistochemistry and real-time RT-PCR study on collared peccary placenta

et al. 2014

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Selected aspects of collared peccary (Dicotyles tajacu) reproductive biology in a captive texas herd

1984

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Collared peccaries (Dicotyles tajacu) from 32 litters were born in captivity during the period from September, 1981 through July, 1983. Incidence of singleton, twin, and triplet litters was 28%, 66%, and 6%, respectively. Mean (k SE) weight of young from singleton, twin, and triplet litters was 751 (+ 35) gm, 698 (+ 17) gm, and 612 (+ 74) gm, respectively. Sex ratio among all litters was 56:44 (M:F). Neonatal mortality amounted to 9% of the young born. Mean duration of estrus was 2.60 days and mean length of gestation was 145.6 days. Evidence indicated that multiple copulations increased ovulation rate and the chance for conception.

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Gestation Period of the Collared Peccary

Cited by 11 publications

References 0 publications

Aspectos macroscópicos e morfométricos dos testículos em catetos e queixadas

Aspectos macroscópicos e morfométricos dos testículos em catetos e queixadas

VEGF system expression by immunohistochemistry and real-time RT-PCR study on collared peccary placenta

Selected aspects of collared peccary (Dicotyles tajacu) reproductive biology in a captive texas herd

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