Lambs ears

Cinnamic acid 4-hydroxyla a (EC 1.14.13.11) a mixed function monooxygenase, present in plants, which catalyses an early reaction in Flavonoid (see) biosynthesis, i.e. the insertion of an atom of oxygen into cinnamic acid to form 4-hydroxydnnamic acid (4-coumaric acid) with concomitant oxidation of one molecule of NADPH. The enzyme is a cytochrome P4S0 system associated with the microsom fraction, and is specific for the trans isomer of cinnamic acid. During the hydroxylation, hydrogen at position 4 (experimentally tritium in position 4) is retained, i.e. there is an NIH shift (see). In vitro, a thiol, e.g. 2-mercaptoethanol, is required for activity. (P.R.Rich C.J.Lamb Ear. J.Biochem. 72 (1977) 353-360)... 

Estradiol-17 is given to animals in form of a subcutaneous implant in the ear, alone or in combination with other hormonally active compounds such as progesterone or trenbolone acetate. Estradiol-17 is used in steers, to best advantage, but also exhibits some anabolic effects in heifers and veal calves. It works best in lambs in conjunction with androgens, but is not effective as an anabolic agent in pigs. It has been used in many forms in the past including the benzoate, dipropionate, hemisuccinate, heptanoate, propionate, undecanoate, and valerate esters. 

Feeding Trials. Trial 1. Six lots of nine lambs each were used to compare hemicellulose and cane molasses. Each treatment was replicated three times. The rations used contained 66% ground ear com, 16.6% mixed hay, 10.4% soybean oil meal, and 7% of either cane molasses or... 

Estradiol-ivp, a potent anabolic agent in ruminants, is administered as an ear implant. It is usually combined with testosterone or progesterone for the main purpose of decreased release rate of estradiol thereby prolonging the duration of the effectiveness of the implant. Estradiol-1 P in farm animals with low endogenous estrogen production such as veal calves, lambs, heifers, and steers increases growth by 5%-15% [12]. 

Waxes are esters formed from long-chain (16 or more carbon atoms) fatty acids and long-chain alcohols. The general formula of a wax is the same as that of a simple ester, RGOOR, with the qualification that R and R are limited to alkyl groups with a large number of carbon atoms. Natural waxes are usually mixtures of several esters. Wax coatings on leaves help to protect the leaves from disease and also help the plant to conserve water. The feathers of birds are also coated with wax. Our ears are protected by wax. Several natural waxes have been used in consumer products. These include carnauba wax (from a Brazilian pahn tree), which is used in floor waxes, automobile waxes, and shoe polishes, and lanolin (from lamb s wool), which is used in cosmetics and ointments. Lanolin also contains cholesterol. 

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