Engaged 发表于 2025-3-23 13:29:47

Reproduction in the Male, Fertilization, and Early Embryonic Development, 1% of the total body weight (Parker, 1949), or about 9–30 g per single testis at sexual maturity, depending on breed, state of nutrition, and other factors. In old cocks testis weight may approach 40–60 g.

记忆 发表于 2025-3-23 16:25:11

Peter H. M. Budzelaar,Giovanni Talaricoage during growth and premigrato-ry fattening, the energy cost of egg production, and the regulation of energy intake. In the particular instance of domestic birds, these considerations are often of economic importance; in wild birds, considerations of energy expenditure and intake are frequently a matter of survival in an adverse environment.

合并 发表于 2025-3-23 20:09:19

Masanobu Nakata,Shigetada Kawabata, and gluten contained a common basic component. The discovery of the real basic components of protein, the amino acids, stretched over more than a century, culminating with the discovery of threonine by Rose in 1935. For detailed historical accounts of these developments, McCollum (1957) and Munro (1964) should be consulted.

比赛用背带 发表于 2025-3-23 23:10:01

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爆炸 发表于 2025-3-24 04:23:53

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雕镂 发表于 2025-3-24 09:49:39

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Detonate 发表于 2025-3-24 11:55:53

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lambaste 发表于 2025-3-24 14:56:27

Group A Streptococcus Transcriptome Analysisatter two groups of phospholipids were originally classified as “cephalins.” Other phospholipids yield glycerol, fatty acids, phosphoric acid, and the cyclic polyalcohol inositol (phosphatidyl inositol). Sphingomyelins, another important group, consist of the base sphingosine, a fatty acid, phosphoric acid, and choline.

江湖郎中 发表于 2025-3-24 20:44:49

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随意 发表于 2025-3-25 02:17:31

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查看完整版本: Titlebook: Avian Physiology; P. D. Sturkie Textbook 19763rd edition Springer-Verlag New York Inc. 1976 Tierphysiologie.Vögel.animal physiology.bird.m