You are here: Home / Tags / Breeding / All Categories

Tags: Breeding

All Categories (1-20 of 431)

  1. 'Bling with bite' - the rise of status and weapon dogs

    Contributor(s):: Harding, S.

  2. 'Bloodhounds as Detectives': Dogs, slum stench and late-Victorian investigation

    Contributor(s):: Pemberton, Neil

  3. A breeding goal to improve the welfare of sheep

    Contributor(s):: Scobie, D. R., Bray, A. R., O'Connell, D.

    This paper examines the practical and welfare implications of breeding a polled sheep with a short tail, devoid of wool on the head, legs, belly and breech, which has been proposed as a breeding goal (Scobie et al., Proceedings of the New Zealand Society of Animimal Production 57 (1997) 84-87)....

  4. A case series of biting dogs: characteristics of the dogs, their behaviour, and their victims

    Contributor(s):: Guy, N. C., Luescher, U. A., Dohoo, S. E., Spangler, E., Miller, J. B., Dohoo, I. R., Bate, L. A.

    The characteristics of 227 biting dogs, their homes, and their victims were gathered in a detailed telephone survey of general veterinary clientele in the Canadian provinces of New Brunswick, Nova Scotia, and Prince Edward Island in 1996. All of the dogs had bitten either someone living in the...

  5. A model to predict the likelihood of cliff swallow nesting on highway structures in northern California

    Contributor(s):: Coates, R. W., Delwiche, M. J., Gorenzel, W. P., Salmon, T. P.

  6. A natural history study of Bufo a. americanus, the eastern American toad, and the phenology of spring breeders in southwest West Virginia

    Contributor(s):: Tomi Maria Bergstrom

    Natural history traits have not been thoroughly collected and analyzed on the ―common hoptoad, Bufo a. americanus (eastern American toad) in West Virginia. Updating natural history information is important to understand the present population status (Jackson, 2001). I chose to have two study...

  7. A note on a quantitative genetic approach for modelling of differentiation tasks

    Contributor(s):: Dietl, G., Nurnberg, G., Reinsch, N.

    Learning capacities and cognitive abilities of farm animals will become more important and they will have an impact on animal welfare and productivity. Scientific examinations of these aspects presuppose genetic models. This paper presents an approach for modelling differentiation tasks in animal...

  8. A note on genetic parameters for estrus symptoms in sows

    Contributor(s):: Gade, S., Bennewitz, J., Kirchner, K., Looft, H., Knap, P. W., Thaller, G., Kalm, E.

    Showing clear estrus symptoms contributes to the reproductive effectiveness of a sow. The aim of the study was to estimate genetic parameters and breeding values for estrus symptoms, a trait which included swelling and reddening of the vulva, interest in the boar and strength of the standing...

  9. A note on separation from one or more lamb(s) in Merino lines divergently selected for ewe multiple rearing ability

    Contributor(s):: Cloete, S. W. P., Scholtz, A. J., Hoope, J. M. T.

    During 1993-95, post parturient behaviour was studied in 370 Merino ewes, 2-6 years of age, from 2 lines divergently selected for multiple rearing ability kept at the Elsenburg Development Institute. Since 1986, high line ram and ewe replacements had been selected from dams that reared >1 lamb...

  10. A note on the effect of vasectomised rams and short-term exposures to entire rams prior to the breeding period on the reproductive performance of ewe lambs

    Contributor(s):: Kenyon, P. R., Morel, P. C. H., Morris, S. T., West, D. M.

    The aim of this study was to determine the effects of either a 17-day exposure to vasectomised rams or a short-term exposure to entire rams on ewe lamb reproductive performance. Seven hundred and twenty-one Romney ewe lambs, 7-9 months of age, were randomly assigned to one of four treatment...

  11. A plea to implement robustness into a breeding goal: poultry as an example

    Contributor(s):: Star, L., Ellen, E. D., Uitdehaag, K., Brom, F. W. A.

    The combination of breeding for increased production and the intensification of housing conditions have resulted in increased occurrence of behavioral, physiological, and immunological disorders. These disorders affect health and welfare of production animals negatively. For future livestock...

  12. A possible relationship between the flinch, step and kick response and milk yield in lactating cows

    Contributor(s):: Willis, G. L.

    The av. milk yield and incidence of flinching, kicking and stepping during teatcup placement and removal (FSK response) were both higher among 10 randomly selected Friesian X Jersey cows in periods of 5 and 4 days when they were milked by one herdsman than in 5 days when they were milked by...

  13. A project to clone companion animals

    Contributor(s):: Hawthorne, L.

    A 'special feature' article by the Project Coordinator of MIssyplicity, a Genetic Savings & Clone (GSC) project seeking to clone a specific mixed breed dog, named Missy, owned by an anonymous yet wealthy individual.

  14. A quantitative analysis of social behaviour of different crossbreds of dairy cattle kept in loose housing and its relationship to productivity

    Contributor(s):: Jezierski, T. A., Podluzny, M.

    The social behaviour of Polish Black-and-White dairy cattle (BW) was compared with that of the F1-crossbreds of BW with Jersey (BW x J), Ayrshire (BW x Ay), Holstein-Friesian (BW x HF) and Swedish Black-and-White (BW x SLB). The crossbreds BW x J proved to be most aggressive, excitable and...

  15. A quantitative study of pre-ovulatory behaviour in cattle (British Friesian heifers)

    Contributor(s):: Esslemont, R. J., Glencross, R. G., Bryant, M. J., Pope, G. S.

    24 British Friesian heifers with normal oestrous cycles were observed continuously for 24 days. The exhibition of 13 components of behaviour was recorded. The 11 most frequently seen components which involved the participation of 2 heifers were classified as aggressive (butting), investigatory...

  16. A Report on Animal Overpopulation: Breeding Surplus Dogs and Cats Causes Suffering

    Contributor(s):: The Humane Society Of The United States

    Overbreeding has created a surplus of nearly 50 million dogs and cats. These animals are unwanted and homeless. Some of them--the lucky ones--will get a quick, merciful death at humane society shelters. Most, however, haven't even the hope of being reached and protected from suffering in the...

  17. A review of historically significant publications from German speaking countries concerning the behaviour of domestic farm animals

    Contributor(s):: Sambraus, H. H.

    German language publications up to and including 1958 which concerned the behaviour of domestic farm animals are reviewed. The subjects covered include behaviour of cows on different grazing systems, and eating habits in cattle.

  18. A review of mulesing and other methods to control flystrike (cutaneous myiasis) in sheep

    Contributor(s):: Phillips, C. J. C.

    Flystrike (cutaneous myiasis) in sheep has the potential to have a major impact on the welfare of significant numbers of sheep worldwide, but particularly in Australia. The main control method used in Australia, the mulesing operation to remove folds of skin from the hindquarters of the sheep, is...

  19. A Solution for the Shortage of Detection Dogs: A Detector Dog Center of Excellence and a Cooperative Breeding Program

    Full-text: Available

    | Contributor(s):: Eldin A. Leighton, Elizabeth Hare, Scott Thomas, L. Paul Waggoner, Cynthia M Otto

    Currently, demand for US-bred and born detector dogs exceeds available supply, while reliance on foreign-bred sources introduces many unnecessary and unwanted risks. With proper management of a domestic supply line, U.S. breeders can improve both health and behavior by applying scientific...

  20. A survey assessment of the incidence of fur-chewing in commercial chinchilla ( Chinchilla lanigera ) farms

    | Contributor(s):: Ponzio, M. F., Busso, J. M., Ruiz, R. D., Cuneo, F. M. de

    Chinchilla lanigera intensive breeding programmes are affected by an abnormal repetitive behaviour called 'fur-chewing', yet the aetiology is still unknown and little scientific work has been published on this condition. Recent studies have supported the idea that fur-chewing is a stress-related...