I found this on a search service I sometimes use:

Prelacteal feeds are negatively associated with breast-feeding outcomes in
Honduras.  Perez-Escamilla, Rafael; Segura-Millan, Sofia; Canahuati, Judy;
Allen, Hubert.  Dep. of Nutritional Sciences, Univ. of Connecticut, Storrs,
CT, 06269-4017, USA.  J. Nutr. (1996), 126(11), 2765-2773.  CODEN: JONUAI;
ISSN: 0022-3166.  Journal written in English.  CAN 126:7137

Abstract
The 1991/92 Epidemiol. and Family Health Survey (ENESF) from Honduras was
examd. for assocns. between prelacteal feeds and breast-feeding outcomes.
The ENESF is a self-weighted nationally representative survey that included
2380 women with children under the age of two.  Multivariate logistic
regression was used to examine the assocn. between prelacteal feeds and
breast-feeding practices among 0- to 6-mo-old infants (n = 714), and to
identify factors assocd. with milk-based prelacteal feeds.  Providing
milk-based prelacteal feeds was neg. assocd. with both exclusive (odds
ratio = 0.18) and any breast-feeding (0.21).  Prelacteal water was neg.
assocd. with exclusive breast-feeding (0.19).  Both water- and milk-based
prelacteal feeds were assocd. with a delayed milk arrival and a delay in
the time at which the child was offered the breast for the first time.  Our
findings suggest that prelacteal feeds have an adverse effect on
breast-feeing outcomes.

 Susan Horein, [log in to unmask]