A note on the reproductive activity of Hampshire and Suffolk ewes outside the breeding season Academic Article

abstract

• SUMMARYThe present study investigated the intensity of the anoestrous period in 36 Hampshire and Suffolk ewes as influenced by the photoperiod and the presence of the ram. The study began on 4 April and terminated on 11 June. Ewes kept under natural light in the absence of the ram (Group I) exhibited a limited amount of ovarian activity as determined by cervical smear. Ewes kept under natural light, but in the presence of a ram (Group II) showed an increased amount of cycling (P < 005) when compared to that in Group I. Two ewes from Group II mated during the so-called anoestrous period and subse-quently lambed. Ten of 12 ewes, subjected to a decreased photoperiod (Group HI), increased ovarian activity within a few days of light reduction. Five ewes in this group lambed.

authors

• Bellinger, Larry

published proceedings

• Animal Science

author list (cited authors)

• Bellinger, L. L., & Mendel, V. E.

citation count

• 3

complete list of authors

• Bellinger, LL||Mendel, VE

publication date

• August 1974

publisher

• Cambridge University Press (CUP)  Publisher

published in

• n1357-7298ISSN  Journal

keywords

• Cancer
• OVARIAN CANCER
• Rare Diseases

Digital Object Identifier (DOI)

• 10.1017/s0003356100022662

start page

• 123

end page

• 126

volume

• 19

issue

• 1

URL

• http://dx.doi.org/10.1017/s0003356100022662