QUOTE(Arven @ 2008 10 30, 20:33)
1) kaciukas kastruojamas iki 3 menesiu, nes paprastai tokio amziaus jis keliauja pas seimininkus. Lytiniams hormonams budingas anabolinis poveiki, t.y. jie skatina baltymu sinteze, t.y. augima, raumenu vystymasi, kaulu matricos vystymasi. Be to jie taip pat skatina kaulu mineralizacija. Taigi, anksti iskastravus, gyvunas bus mazesnis (zmonems tai buna apie 20cm mazesnis ugis, nei prognozuojamas pagal tevu ugi), jis tures mazesne raumenu mase ir silpnesnius kaulus ir dantis. Be to lytiniai hormonai skatina medziagu apykaita, gerina maisto medziagu pasisavinima, mazina lipidu kieki kraujyje ir kt. Ar hormoniai pokyciai sukels Jums matomus nemalonius pozymius? Tikriausiai ne, bet ar nuo to tampa geriau... atsakyti Jums.
Arven, as suzaveta, nuosirdziai tavo taktu ir mokejimu diskutuot. taip miela kad zmogus gali diskutuot o ne isteriniais pasisakymasi svaidytis
ka pakomentuosi:
Growth
Many veterinarians once held the belief that puppies and kittens neutered at early ages might be stunted in growth. Several research studies have now refuted these once-held beliefs. In a 15-month study conducted at the University of Florida, the effects of prepubertal gonadectomy on skeletal growth, weight gain, food intake, body fat, and secondary sex characteristics were investigated in 32 mixed-breed dogs [4]. Growth rates were unaffected (P>0.05) by gonadectomy, but the growth period in final radial/ulnar length was extended in all neutered male dogs (neutered at 7 weeks or 7 months) and in bitches neutered at 7 weeks of age. Thus, animals were not stunted in growth but were actually slightly (as determined by radiographs) taller. In a similar study at the same university [5], thirty-one cats were neutered at 7 weeks or 7 months or left intact. No differences (P>0.05) were detected between neutered cats, regardless of when they were neutered, for mature radius length or time of distal radial physeal closure.
( Prepuberal Gonadectomy - Early-Age Neutering of Dogs and Cats (Last Updated: 25-Apr-2000)
L. M. Howe1 and P. N. Olson2)
1College of Veterinaty Medicine, Texas A&M University, College Station, Texas, USA.
1Guide Dogs for the Blind, Inc., San Rafael California, USA.
Papildyta:cia va siek tiek bendros info:
L.M., M.R. Slater, H.W. Boothe, H.P. Hobson, T.W. Fossum, A.C. Spann, and W.S. Wilkie (2000). Long-term outcome of gonadectomy performed at an early age or traditional age in cats. Journal of the American Veterinary Medical Association 217(11): 1661-1665. ISSN: 0003-1488.
NAL Call Number: 41.8 Am3
Abstract: OBJECTIVE: To determine long-term results and complications of gonadectomy performed at an early age (prepubertal) or at the traditional age in cats. DESIGN: Cohort study. ANIMALS: 263 cats from animal shelters. PROCEDURE: Cats that underwent gonadectomy were allotted to 2 groups on the basis of estimated age at surgery (traditional age, > or = 24 weeks old; prepubertal, < 24 weeks old). Adoptive owner information was obtained from shelter records, and telephone interviews were conducted with owners to determine physical or behavioral problems observed in the cats after adoption. Follow-up information was obtained from attending veterinarians for cats with complex problems or when owners were uncertain regarding the exact nature of their cat's problem. RESULTS: Compared with traditional-age gonadectomy, prepubertal gonadectomy did not result in an increased incidence of infectious disease, behavioral problems, or problems associated with any body system during a median follow-up period of 37 months. Additionally, the rate of retention in the original adoptive household was the same for cats that underwent prepubertal gonadectomy as those that underwent traditional-age gonadectomy. CONCLUSIONS AND CLINICAL RELEVANCE: Prepubertal gonadectomy may be performed safely in cats without concern for increased incidence of physical or behavioral problems for at least a 3-year period after gonadectomy.
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