Significant relationships between the serum leptin concentration and the conventional fat reserve indices in a wildlife species, Hokkaido sika deer (Cervus nippon yesoensis)

2004 ◽  
Vol 31 (1) ◽  
pp. 97 ◽  
Author(s):  
Masatsugu Suzuki ◽  
Mayumi Yokoyama ◽  
Manabu Onuma ◽  
Hiroshi Takahashi ◽  
Masami Yamanaka ◽  
...  
Keyword(s):  
Sika Deer ◽  
Cervus Nippon ◽  
Marrow Fat ◽  
Serum Leptin ◽  
Fat Reserves ◽  
Significant Relationships ◽  
Kidney Fat ◽  
Kidney Fat Index ◽  
Species Specific ◽  
Cervus Nippon Yesoensis

We assayed the serum leptin concentration and determined its correlation with the kidney fat mass (KFM), kidney fat index (KFI), and femur marrow fat (FMF) indices in 12 Hokkaido sika deer (Cervus nippon yesoensis Heude, 1884) collected in April, June, and October 2000. The KFM and KFI in April and June were both significantly lower than those in October. The leptin concentrations in April and June and in October were 1.222–1.521 ng mL–1 HE (Human Equivalent) units and 1.676–2.63 ng mL–1 HE, respectively, without overlapping. The relationships between the leptin concentration and the KFM, KFI, and FMF were all significant. Therefore, we conclude that the serum leptin concentration can be used as a new index for fat reserves in Hokkaido sika deer. However, reliable results could not be obtained from four samples collected in April and June when the deer were in a lower nutritional status. This may be due to the limited sensitivity of the antisera in the commercial multi-species leptin RIA kit used. For practical use in wildlife biology, species-specific leptin assays should be developed to eliminate this problem.

The relationship between fertility and fat reserves of Peary caribou

1982 ◽  
Vol 60 (4) ◽  
pp. 597-602 ◽  
Author(s):  
Donald C. Thomas
Keyword(s):  
Rangifer Tarandus ◽  
Close Association ◽  
Negative Energy ◽  
Pregnancy Rates ◽  
Marrow Fat ◽  
Fat Reserves ◽  
Kidney Fat ◽  
Kidney Fat Index ◽  
Harsh Climate ◽  
Energy Balances

There was a close association between pregnancy rates and levels of fat reserves and body weights in Peary caribou (Rangifer tarandus pearyi) collected in the late winters of 1974 through 1977 on several islands in the Canadian Arctic. Pregnancy rates were <8% in adult (>2 years) females weighing <53 kg in March and April, >75% in those weighing >57 kg, and 100% in those >67 kg in weight. Pregnancy rates increased progressively from 7 to 100% as the percentage marrow fat increased from 43 to 79% and the kidney-fat index increased from 24 to 41%. Only heavy (>46 kg) yearling (21 month) females with high fat reserves were pregnant. Reproduction virtually ceased from 1973–1974 to 1975–1976 in Peary caribou on the western Queen Elizabeth Islands because their physical condition was poor. Pregnancy rates were as high as 100% in females in a second population located on Somerset and Prince of Wales islands, and in 1974–1975 four of five yearling females were pregnant. The adjustment of fertility to energy reserves is viewed as an adaptation to conserve energy. It is well developed in Peary caribou whose environment is characterized by a highly variable and often harsh climate in which negative energy balances probably prevail for 8 to 10 months of the year.

Evaluation of several indices for assessment of coyote (Canis latrans) body composition

1995 ◽  
Vol 73 (9) ◽  
pp. 1620-1624 ◽  
Author(s):  
Jean Huot ◽  
Marie-Lazarine Poulle ◽  
Michel Crête
Keyword(s):  
Body Composition ◽  
Canis Latrans ◽  
The Body ◽  
Marrow Fat ◽  
Body Protein ◽  
Fat Reserves ◽  
Kidney Fat ◽  
Kidney Fat Index ◽  
Total Body

The body composition of 27 coyotes (Canis latrans) of different ages and both sexes was determined on the basis of chemical analyses of homogenized samples of viscera, carcass, and skin. Regression analyses were used to identify the best indices for estimating fat (lipid reserves), protein, and water body contents. A combined index based on the kidney fat index and the percentage of femur marrow fat was the best indicator of fat reserves. Body mass (whole or skinned carcass) and eviscerated carcass mass were the best predictors of total body protein and total body water contents. A combination of indices is proposed to provide postmortem or in vivo estimates of coyote body composition.

scholarly journals Sex Determination of Sika Deer (Cervus nippon yesoensis) Using Nested PCR from Feces Collected in the Field

2011 ◽  
Vol 73 (12) ◽  
pp. 1611-1616 ◽  
Author(s):  
Shoki YAMAZAKI ◽  
Yuta MOTOI ◽  
Kazuya NAGAI ◽  
Tsuyoshi ISHINAZAKA ◽  
Makoto ASANO ◽  
...  
Keyword(s):  
Sex Determination ◽  
Nested Pcr ◽  
Sika Deer ◽  
Cervus Nippon ◽  
Cervus Nippon Yesoensis

Seroprevalence of fasciolosis in Hokkaido sika deer (Cervus nippon yesoensis) from Hokkaido Prefecture, Japan revealed by ELISA using recombinant cathepsin L1

2021 ◽  
Vol 80 ◽  
pp. 102222
Author(s):  
Hironobu Sato ◽  
Hiroki Hiraya ◽  
Takutoshi Sugiyama ◽  
Shinya Fukumoto ◽  
Ryota Matsuyama ◽  
...  
Keyword(s):  
Sika Deer ◽  
Cervus Nippon ◽  
Cervus Nippon Yesoensis

scholarly journals Seasonal Changes in the Gonadotropic Cells in the Pituitary of Wild Sika Deer (Cervus nippon yesoensis).

1994 ◽  
Vol 40 (2) ◽  
pp. 159-165 ◽  
Author(s):  
Akiko YAMAJI ◽  
Yasuo KISO ◽  
Masatsugu SUZUKI ◽  
Mayumi YOKOYAMA ◽  
Fumihiko SASAKI
Keyword(s):  
Seasonal Changes ◽  
Sika Deer ◽  
Cervus Nippon ◽  
Gonadotropic Cells ◽  
Cervus Nippon Yesoensis

Immunohistochemical Localization of Steroidogenic Enzymes in the Testis of Hokkaido Sika Deer (Cervus nippon yesoensis)

2004 ◽  
Vol 66 (11) ◽  
pp. 1463-1466 ◽  
Author(s):  
Daisuke HAYAKAWA ◽  
Motoki SASAKI ◽  
Chihiro AKABANE ◽  
Nobuo KITAMURA ◽  
Toshio TSUBOTA ◽  
...  
Keyword(s):  
Sika Deer ◽  
Cervus Nippon ◽  
Immunohistochemical Localization ◽  
Steroidogenic Enzymes ◽  
Cervus Nippon Yesoensis

Body size, sexual dimorphism, and seasonal mass fluctuations in a larger sika deer subspecies, the Hokkaido sika deer (Cervus nippon yesoensis Heude, 1884)

2001 ◽  
Vol 79 (1) ◽  
pp. 154-159 ◽  
Author(s):  
Masatsugu Suzuki ◽  
Manabu Onuma ◽  
Mayumi Yokoyama ◽  
Koich Kaji ◽  
Masami Yamanaka ◽  
...  
Keyword(s):  
Sexual Dimorphism ◽  
Body Mass ◽  
Body Length ◽  
Sika Deer ◽  
Cervus Nippon ◽  
Total Body Mass ◽  
Foot Length ◽  
Hind Foot ◽  
Total Body ◽  
Cervus Nippon Yesoensis

Measurements of shoulder height, body length, hind-foot length, and total body mass were collected from 309 Hokkaido sika deer (Cervus nippon yesoensis Heude, 1884) (115 males and 194 females) and analyzed statistically for sexual dimorphism and seasonal body mass fluctuations. The von Bertalanffy equation was fitted to the growth curves that resulted. Asymptotic shoulder height, body length, and hind-foot length were 106.2, 112.6, and 52.9 cm in males and 94.8, 103.9, and 49.4 cm in females, respectively. Total body mass showed distinct seasonal fluctuations, ranging between 102.8 and 151.0 kg in adult males and 68.0 and 99.8 kg in adult females. Male/female ratios in shoulder height, body length, hind-foot length, and total mass were 1.12, 1.08, 1.07, and 1.51, respectively. These results indicate that the Hokkaido sika deer is one of the largest subspecies, at least in skeleton size. A larger body and longer hind foot would seem to be evolutionary adaptations to Hokkaido's cold, snowy environment.

Expression of prolactin receptor (PRL-R) mRNA in the caudal gland of Hokkaido sika deer (Cervus nippon yesoensis Heude, 1884)

2001 ◽  
Vol 79 (3) ◽  
pp. 416-419 ◽  
Author(s):  
Masatsugu Suzuki ◽  
Yuri Kamewaka ◽  
Masami Yamanaka ◽  
Toshihiko Iwanaga ◽  
Noriyuki Ohtaishi
Keyword(s):  
Sika Deer ◽  
Prolactin Receptor ◽  
Cervus Nippon ◽  
Caudal Gland ◽  
Cervus Nippon Yesoensis

Isolation of a Megatrypanum trypanosome from sika deer (Cervus nippon yesoensis) in Japan

2007 ◽  
Vol 149 (1-2) ◽  
pp. 56-64 ◽  
Author(s):  
Shinichi Hatama ◽  
Tomoyuki Shibahara ◽  
Masatsugu Suzuki ◽  
Koichi Kadota ◽  
Ikuo Uchida ◽  
...  
Keyword(s):  
Sika Deer ◽  
Cervus Nippon ◽  
Cervus Nippon Yesoensis
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