Use of nutritional restriction at mating to dampen reproductive performance of 'FecB'-carrier merino ewes

DH Wolfenden; Steve William Walkden-Brown

Use of nutritional restriction at mating to dampen reproductive performance of 'FecB'-carrier merino ewes

DH Wolfenden
, Steve William Walkden-Brown

Animal Science

Research output: Contribution to conference › Abstract › peer-review

Abstract

The nutritional milieu strongly influences ovulation rate in both carriers and non-carriers of the Booroola fecundity gene ('FecB') (Montgomery et al. 1983; Kleemann et al. 1991). On the property 'Allandale' both homozygous ('FecB^BB') and heterozygous ('FecB^B+') merino ewes have large litter sizes (LSs) (2.1 and 2.3 respectively) and excessive losses from ovulation to weaning (>64%) (Walkden-Brown et al. 2007). This study reports an attempt to inhibit the expression of 'FecB' by a period of nutritional restriction, resulting in weight loss at mating.

Original language	English
Pages	227-228
Publication status	Published - 2009
Event	Helen Newton Turner Memorial International Workshop - Pune, India Duration: 10 Nov 2008 → 12 Nov 2008

Conference

Conference	Helen Newton Turner Memorial International Workshop
City	Pune, India
Period	10/11/08 → 12/11/08

Keywords

Animal Breeding

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https://hdl.handle.net/1959.11/4053

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@conference{15c270f7a2cd4c4b985762f381c5733a,

title = "Use of nutritional restriction at mating to dampen reproductive performance of 'FecB'-carrier merino ewes",

abstract = "The nutritional milieu strongly influences ovulation rate in both carriers and non-carriers of the Booroola fecundity gene ('FecB') (Montgomery et al. 1983; Kleemann et al. 1991). On the property 'Allandale' both homozygous ('FecB\textasciicircum{}BB') and heterozygous ('FecB\textasciicircum{}B+') merino ewes have large litter sizes (LSs) (2.1 and 2.3 respectively) and excessive losses from ovulation to weaning (>64\%) (Walkden-Brown et al. 2007). This study reports an attempt to inhibit the expression of 'FecB' by a period of nutritional restriction, resulting in weight loss at mating.",

keywords = "Animal Breeding",

author = "DH Wolfenden and Walkden-Brown, \{Steve William\}",

year = "2009",

language = "English",

pages = "227--228",

note = "Helen Newton Turner Memorial International Workshop ; Conference date: 10-11-2008 Through 12-11-2008",

}

TY - CONF

T1 - Use of nutritional restriction at mating to dampen reproductive performance of 'FecB'-carrier merino ewes

AU - Wolfenden, DH

AU - Walkden-Brown, Steve William

PY - 2009

Y1 - 2009

N2 - The nutritional milieu strongly influences ovulation rate in both carriers and non-carriers of the Booroola fecundity gene ('FecB') (Montgomery et al. 1983; Kleemann et al. 1991). On the property 'Allandale' both homozygous ('FecB^BB') and heterozygous ('FecB^B+') merino ewes have large litter sizes (LSs) (2.1 and 2.3 respectively) and excessive losses from ovulation to weaning (>64%) (Walkden-Brown et al. 2007). This study reports an attempt to inhibit the expression of 'FecB' by a period of nutritional restriction, resulting in weight loss at mating.

AB - The nutritional milieu strongly influences ovulation rate in both carriers and non-carriers of the Booroola fecundity gene ('FecB') (Montgomery et al. 1983; Kleemann et al. 1991). On the property 'Allandale' both homozygous ('FecB^BB') and heterozygous ('FecB^B+') merino ewes have large litter sizes (LSs) (2.1 and 2.3 respectively) and excessive losses from ovulation to weaning (>64%) (Walkden-Brown et al. 2007). This study reports an attempt to inhibit the expression of 'FecB' by a period of nutritional restriction, resulting in weight loss at mating.

KW - Animal Breeding

UR - http://www.aciar.gov.au/publication/PR133

M3 - Abstract

SP - 227

EP - 228

T2 - Helen Newton Turner Memorial International Workshop

Y2 - 10 November 2008 through 12 November 2008

ER -

Use of nutritional restriction at mating to dampen reproductive performance of 'FecB'-carrier merino ewes

Abstract

Conference

Keywords

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