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The morphology and morphometry of the epididymis in the greater cane rat (Thryonomys swinderianus Temmincks)

100%

Adebayo A. O., Olurode S. A.

Folia Morphologica

2010

tom 69

nr 4

The structure and morphometry of the epididymis in the greater cane rat were studied in this work. In assessing the morphology and characterising the morphometric values, a total of 15 adult male greater cane rats, bred and raised in captivity, were used. All the animals had brownish perineal staining, which was taken as index of sexual maturity in male cane rats, and they were maintained on elephant grass stems with water given ad libitum. From this work, the epididymis of the greater cane rat was observed to have a mean weight of 0.0365 ± 0.091 g, forming about 0.016% of the total body weight and an average volume of 0.36 ± 0.08 mL. There was a positive correlation between the epididymal weights, testicular weight, and the body weight in this animal. However, the gross divisions of the epididymis into head, body, and tail were not conspicuous in the cane rat; instead it had two divisions — the cranial and the caudal divisions. In addition, based on the histological and histomorphometric analyses, five zones were observed in the epididymal epithelium of this animal. This preliminary information on the epididymis will serve as a basis for further research on the epididymis of the greater cane rat and will contribute to the knowledge of the its reproductive biology, which will subsequently aid in the captive rearing and domestication of this animal. (Folia Morphol 2010; 69, 4: 246–252)

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Amino acids composition of liver, heart and kidneys of Thryonomys swinderianus (Temminck 1827) compared

80%

Adeyeye E. I., Ayodele O., Orege J. I.

International Letters of Natural Sciences

2020

tom 79

Amino acids composition of Thryonomys swingerianus is reported. Whereas protein values (g100g⁻¹) had liver (74.1), kidney (91.5), heart (84.6); corresponding total amino acid values were 93.5, 83.2 and 80.6. True protein from the crude protein of the samples ran thus: liver>kidney>heart. Of the twenty parameters reported on, liver was best in 12/20 (60.0%), kidney and heart both shared the second position of 4/20(20%) each. Among the essential amino acids, leucine predominated in both liver (7.96g100g⁻¹ protein) and kidney (8.11g100g⁻¹ protein) but valine (6.21g100g⁻¹ protein) predominated in the heart. The P-PER values were; P-PER₁: 2.78 (liver), 2.91(kidney), 0.716 (heart) and P-PER₂: 2.71 (liver), 2.90 (kidney), 0.564 (heart). However, there was a reverse between liver and kidney in the EAAI values with liver (92.0) > kidney (90.2) > heart (87.6) with corresponding BV values of 88.5 > 86.6 > 83.7. In the amino acids scoring pattern, Ser was limiting in liver (0.533) and heart (0.394) but Thr (0.490) in kidney in whole hen’s egg score comparison; in FAO/WHO scoring standards, Thr was limiting in liver (0.988) and kidney (0.625) but Leu (0.459) in heart. In pre-school requirements, liver recorded no limiting amino acid whereas Thr was limiting in kidney (0.735) and Leu was limiting in the heart (0.486). T. swingerianus red viscera was compared with the red viscera of livestock animals (cattle, sheep and pork) as well as FAO/WHO/UNU standards for total essential amino acids. Our results when compared with the livestock red viscera (without Trp) and FAO/WHO/UNU (g100g⁻¹ protein), we have heart: grasscutter/cattle/sheep/pig: 45.3 /46.0/42.7/46.6; kidney: grasscutter/cattle/sheep/pig: 47.6/43.8/42.5/46.7; liver: grasscutter/cattle/ sheep/pig: 50.7/47.7/41.5/47.5 and grasscutter liver/kidney/heart/ FAO/WHO/UNU: 50.7/47.6/45.3/32.8 showing that all the red viscera values in T. swingerianus were better than the essential amino acids in the FAO/WHO/UNU standards and livestock red viscera. Statistical values showed that significant differences existed among the samples at r₌₀.₀₁.

Ograniczanie wyników

1 Folia Morphologica

1 International Letters of Natural Sciences

1 Adebayo A. O.

1 Adeyeye E. I.

1 Ayodele O.

1 Olurode S. A.

1 Orege J. I.

1 2020

1 2010

Wyniki wyszukiwania

The morphology and morphometry of the epididymis in the greater cane rat (Thryonomys swinderianus Temmincks)

Amino acids composition of liver, heart and kidneys of Thryonomys swinderianus (Temminck 1827) compared