
那么有人问了,Degu究竟有多大,这里放出一些网站的资料给大家看看
~PHYSICAL~
Fully adult (male and female) total length (including tail)- 250-310 mm52, *
Fully adult head and body length (male and female)- 150 mm*
Tail length- 65-130 mm52, *
Ear height- 24-32 mm52
Hind foot length- 35-38 mm52
Average weight when fully adult- 170-230 g23 , 29 , 32 , 108 , 109 , 143
Other species heavier52
Bridge's degu- 180-210 g143
Ideal weight range for fully adult captive bred degus- 220-250 g*
Fully adult- 54 weeks32 or approx. 1 year*
Differentiated caecum- 33.60 % specific104
Haustrated caecum- 79.65 % specific104
Glandular stomach- 36.25 % specific104
Relative medullary thickness- 6.152
Life expectancy in captivity- 7-9 years31 or 6-8 years*
~PHYSIOLOGICAL~
Body temperature- 36.0-37.9 ºC6 , 45, 52 , 109
Oestrus- ~ +4 ºC40
Thermal neutral zone- 24-32 ºC109
Energetic critical environment temperature- 24 ºC109
Normal blood glucose level- 3.89-5.39 mM24b
Unstressed urine concentration- 634 mOsmoles l-1 52
Mean summer urine osmolality- 3137 mOsmoles kg-1 140
Mean winter urine osmolality- 1123 mOsmoles kg-1 140
Basal metabolic rate- 0.839 ml O2 g-1hr-1 104
Heart rate- 274 beats min-1 158
Resting respiratory rate- 123 breaths min-1 158
Anaesthetised respiratory rate- 231 (+/-35) breaths min-1182
Hypoxia (10 % O2)- 179 (+/-17) breaths min-1182
Hypercapnia (10 % CO2)- 206 (+/-20) breaths min-1182
Anaesthetised tidal volume- 0.18 (+/-0.04) ml182
Hypoxia (10 % O2)- 0.17 (+/-0.04) ml182
Hypercapnia (10 % CO2)- 0.16 (+/-0.03) ml182
Anaesthetised minute volume- 40.6 (+/-11.7) ml min-1182
Hypoxia (10 % O2)- 32.3 (+/-10.2) ml min-1182
Hypercapnia (10 % CO2)- 34.6 (+/-8) ml min-1182
Average lowest cortisol level reached- 500 ng ml-1 37
Haematologic and serum values:
Erythrocytes- 8.50-9.10x106 microlitre-1 46
Leukocytes- 7.84-8.89x103 microlitre-1 46
Red blood cell volume- 48.8 %52
Packed cell volume (PCV)- 39.39-42.69 %46
Haemoglobin- 11.53-12.15 g dl-1 46
Haemoglobin weight- 256 g l-1 52
Neutrophil:lymphocyte ratio- 40:6046
Total protein- 5.44-5.90 g dl-1 46
~SEXUAL~
Rough age of puberty in females- 7 weeks31
Rough age of puberty in males- 12 weeks31
Maximum testes/vagina size- 16 weeks68
Average age of first conception (wild degus)- 6 months51
Average weight at first conception (wild degus)- 205 g52
Recommended minimum weight for first pregnancy (captive degus)- 220 g*
Sex ratio at birth- 100 females:110 males52
Average litter size- 5-7 pups104 , 23 , 171
Pup weight at birth- 8-16 g170 , 104
Percentage of maternal mass at birth- 5-6 %170
Rate of pup growth over first 14 days postpartum- 1-3 g day-1 170
Days of lactation- 35-40104 , 108
Average milk solids- 26.9 %108
Average milk lipids- 17.3 %108
Average milk protein- 4.4 %108
Average milk ash- 2.7 %108
Average milk carbohydrates (time dependent)- 3.1-1.0 %108
Average milk energy content- 4.0 kJ ml-1 108
Pup's first solid food (average)- 6.5 days104
Average weaning length- 28 days104
Recommended weaning age- 6 weeks170
Average cortisol level in lactating females- 1000 ng ml-1 37
Average testosterone level for adult reproductive males- 2.35 ng ml-1 107
Average highest testosterone level (male)- 0.16 ng ml-1 37
Caviomorph seminal vitamin C content- 2.5-12 mg dl-1 63
Spermatozoon gametic DNA content- 2.7 pg48
Spermatozoon mean head length- 6.0 μm48
Bridge's degu- 7.0 μm48
Moon-toothed degu- 7.7 μm48
Spermatozoon mean head width- 4.6 μm48
Bridge's degu- 4.4μm48
Moon-toothed degu- 4.6μm48
Spermatozoon mean tail length- 40.9 μm48
Bridge's degu- 39.1 μm48
Moon-toothed degu- 35.8 μm48
Nuclear Spermatazoal nucleoli location- Central87
~FUNCTIONAL / MISC.~
Wild nutritive class- 216 g CF kg DM-1 104
Methogenesis rate- 2.00 nmol g-1 hr-1 104
Visual field overlap (frontal binocular)- 50º 191
Moon-toothed degu- 100º 191
Number of cells in the retinal ganglion layer- 300000 191
Moon-toothed degu- 180000 191
Maximum speed for a 180 g degu- 4.9 m s-1 29
Maximum aerobic speed- 2.4 m s-1 29
Trot-gallop transition speed (180 g)- 1.05 m s-1 146
Age of circadian function development- 10-12 months80
Chromosome number (2n)- 5833 , 53 , 52
Bridge's degu (2n)- 5833
Moon-toothed degu (2n)- 7833
Genome size- 8.6 ρg53
NF value- 11652
Average chiasmata per bivalent- 1.652
Recombination index- 7352
Harmful malathion dosage- 436 mg kg-1 116
Lethal pentobarbital sodium dose- 60 mg kg-1 140