Archive image from page 57 of Dentition as indicative of the. Dentition as indicative of the age of the animals of the farm dentitionasindic00browrich Year: 1895 54 Dentition as indicative of the Age birth, owing to the growth of the jaw. In Fig. 53 (p. 53) the state of the teeth at three months old is indicated. Excepting the natural growth of the jaws, in common with other parts, no changes occur which will assist the examiner in judging the age of the young pig until the age oi five months is reached. At this time there are evident signs of the cutting of the pre-molars ; and the fourth mo
Archive image from page 57 of Dentition as indicative of the. Dentition as indicative of the age of the animals of the farm dentitionasindic00browrich Year: 1895 54 Dentition as indicative of the Age birth, owing to the growth of the jaw. In Fig. 53 (p. 53) the state of the teeth at three months old is indicated. Excepting the natural growth of the jaws, in common with other parts, no changes occur which will assist the examiner in judging the age of the young pig until the age oi five months is reached. At this time there are evident signs of the cutting of the pre-molars ; and the fourth molar, which is the first per- manent tooth, is seen behind the temporary teeth. The illustration below (Fig. 54) shows the state of the molars at the age o six months. As a large number of pigs are entered at Agricultural Exhibitions at the age of between five and six months, it is necessary to devote particular attention to the signs which are exhibited by the teeth of the pig at this period ; and the in- sjoector is particularly required to remember that the animal Fig. 5-i.—Molars of Pig at six months. which he is inspecting may be actually over the stated age at the time of inspection, without, in consequence, being liable to disqualification. This condition of things constantly occurs at the Shows which are held after the date up to which the ages are calculated ; it is obviously necessary to add the days or weeks which have elapsed to the animal's certified age, at the time of making the examination : for example, in cases where ages are calculated to the 1st of June, while the Show takes place early in July, a pig which is certified to be five months three weeks and five days old in. the class for animals not exceeding six months, will be more than a month over the certified age when it is seen by the inspector. Again, it must be noted that the jDre-molars are not always developed, and in the same litter one or two pigs will be found occasionally in which this tooth
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Keywords: 1890, 1895, archive, book, bookauthor, bookdecade, bookpublisher, booksponsor, booksubject, bookyear, brown_george_thomas_sir_1827_, domestic_animals_age, drawing, historical, history, illustration, image, london_j_murray, msn, page, picture, print, reference, teeth, vintage, zimmermann_a_albrecht_b_1860
