The Phosphorus Content of the Body in Relation to Age, Growth, and Food

Sherman, H. C.; Quinn, E. J.

doi:10.1016/s0021-9258(18)84701-9

Cited by 23 publications

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“…They recorded that after 15 days of age phosphorus concentrations averaged higher in the males than the females because of their greater average body weights. The concentrations in males and females were the same by day 21 and then females showed higher percentages of phosphorus than males of the same age from day 28 onwards (Sherman and Quinn, 1926). https://dx.doi.org/10.…”

Section: Discussionmentioning

confidence: 87%

“…Variability in trace element composition can be caused due to several possible reasons, including the influence of different dietary trace mineral levels, gender-specific metabolism, varying accuracy of analytical techniques, and contamination of the samples (Dierenfeld et al, 2002). An old study performed by Sherman and Quinn (1926) determined phosphorus content in rats and no other recent studies were found in this area. They recorded that after 15 days of age phosphorus concentrations averaged higher in the males than the females because of their greater average body weights.…”

Section: Discussionmentioning

confidence: 96%

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Nutritional Content of Adult Norway Rats for Small Carnivores’ Feeding

Delboy¹

2022

WVJ

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Rats are the natural diet of many free-ranging carnivores. They are also fed to small carnivore mammals, raptor birds, and reptiles in captivity as a sole or partial diet, however, little is known about the nutrients that a rat can provide as animal feed. This study aimed to determine the nutritional content of the whole captive-bred Norway rats. A total of 12 randomly selected weaned male and female Wistar Norway rats were fed ad libitum with a local dry dog food diet. The rats were weighed weekly until an average weight of 300 g was reached. Biochemical and mineral analyses were carried out for each rat. The results of the study showed significant differences between male and female rats in terms of growth rate, crude protein, total fat, and calcium concentrations. Males presented a faster growth rate and reached the desired weight in around half the time (6 weeks), compared to females (13 weeks). Moreover, males had a higher percentage of crude protein (23.57%) on a fed matter basis, calcium (2.61%), and phosphorus (0.98%). Females showed higher total fat (13.92%) and lower crude protein (19.49%), calcium (0.54%), and phosphorus (0.47%), compared to males. The results of this research may be used to determine whether a whole rat can provide all the necessary nutrients to carnivore animals commonly kept in captivity. Present findings indicated that rats could provide the necessary nutrients, however, if given as a sole diet, they could not be enough to supply the nutritional requirements of animals in the long term.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 96%

Nutritional Content of Adult Norway Rats for Small Carnivores’ Feeding

Delboy¹

2022

WVJ

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Iodine and Thyroid Hyperplasia

Turner¹

1934

Am J Dis Child

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A systematic study of the iodine content of human milk during the period of lactation may enlighten one's course in combating or preventing thyroidhyperplasia. The following report is a step in this direction. LITERATUREThe ideas expressed in the literature on thyroid disease are so varied and confusing that it is difficult to form a definite and concise conclusion regarding the functions and mechanism involved. Further, examination of the literature reveals little regarding the iodine content of mother's milk and its variations during the period of lactation. Most of the studies reported have been on colostrum.Maurer and Diez 1 (1926) saponified colostrum with 25 per cent potassium hydroxide. After evaporation and ashing they extracted with alcohol and determined the iodine content colorimetrically after the method of von Fellenberg.2 They found that colostrum has a high iodine value with decided quick falls. They claimed that its iodine value is higher than that of cow's milk, especially during the early colostral period. This confirmed the findings of von Fellenberg,2 who found a decrease of approximately 80 per cent on the fifth day of lactation. Findings for normal human colostrum in 2 cases were reported as shown in table 1.In a later report Maurer and Ducrue 3 (1928) found that 0.6 mg. of potassium iodide given each day did not change the quantity of milk secreted by mothers, but increased the iodine content far above the From the

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Das Stoffliche

Lang¹,

Ranke²

1950

Stoffwechsel Und Ernährung

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The Phosphorus Content of the Body in Relation to Age, Growth, and Food

Cited by 23 publications

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Nutritional Content of Adult Norway Rats for Small Carnivores’ Feeding

Nutritional Content of Adult Norway Rats for Small Carnivores’ Feeding

Iodine and Thyroid Hyperplasia

Das Stoffliche

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