dja                   package:aod                   R Documentation

_M_o_r_t_a_l_i_t_y _o_f _D_j_a_l_l_o_n_k_e _L_a_m_b_s _i_n _S_e_n_e_g_a_l

_D_e_s_c_r_i_p_t_i_o_n:

     Field trial to assess the effect of ewes deworming (prevention of
     gastro-intestinal parasitism) on the mortality  of their offspring
     (age < 1 year). This data set is extracted from a large database
     on small ruminants production  and health in Senegal (Lancelot et
     al., 1998). Data were collected in a sample of herds in Kolda
     (Upper Casamance,  Senegal) during a multi-site survey (Faugre et
     al., 1992). See also the references below for a presentation of
     the  follow-up survey (Faugre and Faugre, 1986) and a
     description of the farming systems (Faugre et al., 1990).

_U_s_a_g_e:

     data(dja)

_F_o_r_m_a_t:

     A data frame with 21 observations on the following 4 variables.

     _g_r_o_u_p a factor with 2 levels: 'CTRL' and 'TREAT', indicating the
          treatment.

     _v_i_l_l_a_g_e a factor indicating the village of the herd.

     _h_e_r_d a factor indicating the herd.

     _n a numeric vector: the number of animals exposed to mortality.

     _t_r_i_s_k a numeric vector: the exposition time to mortality (in
          year).

     _y a numeric vector: the number of deaths.

_R_e_f_e_r_e_n_c_e_s:

     Faugre, O., Faugre, B., 1986. _Suivi de troupeaux et contrle
     des performances individuelles des petits  ruminants en milieu
     traditionnel africain. Aspects mthodologiques._ Rev. lev. Md.
     vt. Pays trop., 39 (1): 29-40.
      Faugre, O., Docks, A.-C., Perrot, C., Faugre, B., 1990.
     _L'levage traditionnel des petits ruminants  au Sngal. I.
     Pratiques de conduite et d'exploitation des animaux chez les
     leveurs de la rgion de Kolda._ Revue  lev. Md. vt. Pays trop.
     43: 249-259.
      Faugre, O., Tillard, E., Faugre, B., 1992. _Prophylaxie chez
     les petits ruminants au Sngal: rgionalisation  d'une politique
     nationale de protection sanitaire_. In: B. Rey, S. H. B. Lebbie,
     L. Reynolds (Ed.), First biennial  conference of the African Small
     Ruminant Research Network, ILCA, 1990, ILRAD, Nairobi, pp.
     307-314.
      Lancelot, R., Faye, B., Juans, X., Ndiaye, M., Prochon, L.,
     Tillard, E., 1998. _La base de donnes BAOBAB:  un outil pour
     modliser la production et la sant des petits ruminants dans les
     systmes d'levage traditionnels  au Sngal._ Revue lev. Md.
     vt. Pays trop., 51 (2): 135-146.

