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Topic: Booroola Merino

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	About wool furnishing fabrics
		Fine and superfine Merinos are found in the northern and southern tablelands of New South Wales, the western districts of Victoria and the midlands district of Tasmania.
		The Fonthill Merino was evolved by crossing American-bred Rambouillet Merino rams with a fine-wool Saxon strain of Merino.
		The Booroola Merino was originally developed on the Southern Tablelands of New South Wales and is the subject of a continuing developmental programme initiated by Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO).
	www.woolfurnishings.com /inforoom/sheep/sheep.html (592 words)

	Breeds of Livestock - Booroola Merino Sheep (Site not responding. Last check: 2007-10-31)
		The Booroola Merino was originally developed on the Southern Tablelands of NSW, and is the subject of a continuing development program initiated by the Commonwealth Scientific and Industrial Research Organization (CSIRO).
		The number of lambs born per ewe lambing averages 2.4 with a range from one to six.
		In crosses with other Merinos this difference is naturally reduced but half-Booroola ewes on average wean about 20 percent more lambs than comparable Merinos under the same conditions.
	www.ansi.okstate.edu /breeds/sheep/booroolamerino/index.htm (141 words)

	booroola.gene
		Booroola actually refers to a gene called the B gene (also called F for fecundity) and acts independent of the breed or type of sheep that it is contained in.
		In the Tamarack Booroola Dorset flock for instance, each new crop of ewe lambs are born to heterozygous Booroola dams (B+) and sired by purebred Dorset rams (non carriers or ++).
		The Booroola B gene can be transferred into another breed by breeding each generation of Booroola B gene carriers to purebred rams of the chosen breed.
	www.tamaracksheep.com /booroola.html (2186 words)

	REU Technical Series 50: Sheep and Goat Production in Central and Eastern European Countries p134
		The 75-80 percent of the 200 Prolific Merino nucleus flock at Debrecen is Fec
		In Eastern-European and Middle-Asian countries with mainly Merino or Merino related breeds, we think of a similar role for the Prolific Merino, the breeding of which was announced in 1982 and which was approved as a new breed by the Hungarian Agricultural and Breed Qualification Institution in 1992.
		The relatively lower progeny rates, compared to the Booroola Merino breed is due to the application of the frequent lambing technology and better lamb survival.
	www.fao.org /regional/europe/PUB/RTS50/134.htm (1127 words)

	Concentrations of Progesterone, Follistatin, and Follicle-Stimulating Hormone in Peripheral Plasma Across the Estrous ...
		Genetic segregation for fecundity in Booroola Merino sheep.
		Highly prolific Booroola sheep have a mutation in the intracellular kinase domain of bone morphogenetic protein IB receptor (ALK-6) that is expressed in both oocytes and granulosa cells.
		The Booroola (FecB) phenotype is associated with a mutation in the bone morphogenetic receptor type 1 B (BMPR1B) gene.
	www.biolreprod.org /cgi/content/full/69/3/1079 (3903 words)

	Effects of the FecB Gene in Half-sib Families of Rambouillet-cross Ewes - American Sheep Industry
		The Booroola Merino's higher reproductive rate has been shown to be due to a single gene (Piper and Bindon, 1996), known as FecB.
		Rambouillet - Booroola rams that had from 44% to 6% Booroola Merino ancestry were selected from a flock of sheep where the FecB gene is being introgressed into Rambouillet.
		While several studies have reported that Booroola x local breed crosses were lighter than local breed contemporaries (Davis et al., 1991), these estimates were generally a function of the difference between Booroola-Merino background genotype and the genotype of the local breed.
	www.sheepusa.org /index.phtml?page=site/news_details&nav_id=31bdfd39debca4b63143ee9aa3dc3f67&ps_session=63fab74170dd603ce995d60f179068df (4337 words)

	Sheep 101 - Sheep Breeds Be-Br
		The Booroola Merino was developed on the Southern Tablelands of New South Wales, Australia.
		The high prolifacy of the Booroola Merino is due to the action of a single gene.
		Booroola actually refers to a gene called the B gene (also called F for fecundity).
	www.sheep101.info /breedsB.html (1980 words)

	DNA Tests in Prolific Sheep from Eight Countries Provide New Evidence on Origin of the Booroola (FecB) Mutation -- ...
		are segregating in Booroola (FecB) [1, 2] and Inverdale (FecX
		for the Booroola and Inverdale mutations in prolific Javanese,
		) genotypes in Booroola, Garole, and Javanese sheep.
	www.biolreprod.org /cgi/content/full/66/6/1869 (4467 words)

	Reproductive Biology and Endocrinology \| Full text \| Regulation of ovulation rate in mammals: contribution of sheep ... (Site not responding. Last check: 2007-10-31)
		Booroola was the first major gene that has been reported to increase ovulation rate [13,14].
		Booroola mutation can be segregated on the basis of ovulation rate recording of 5 or more, 3 or 4 and 1 or 2, respectively [15,16].
		Since 1980, when Piper and Bindon [14] proposed that the exceptional fecundity of the Booroola Merino sheep may in part result from the action of a single major gene, the use of sheep with genetic mutation affecting ovulation rate has provided exceptional tools in the field of female reproductive biology.
	www.rbej.com /content/4/1/20 (6728 words)

	Meningar.com om merino. Sheep, Colorado, Wool mm.
		Merino handknits sweaters are designed by the award winning Mortonhouse Merino Sheep Farm using natural un-dyed colors in 2 to 3 ply yarn...
		Medium-Wool Merino This is the main representative of the Merino breed in Australia and is found in extremely high number throughout NSW, Queensland, Victoria and Western Australia...
		Booroola Merino The Booroola Merino was originally developed on the Southern Tablelands of NSW, and is the subject of a continuing development program initiated by the Commonwealth Scientific and Industrial Research Organization (CSIRO)...
	www.meningar.com /merino.html (1682 words)

	Sheep 101 - Sheep Breeds G-I
		The Merinofleischschaf (Merino mutton sheep) was prevalent in Saxony.
		There are three German Merino breeds: Merinolandschaf (Merino landsheep), Merinofleischschaf (Merino mutton sheep), and Merinolangwollschaf (Merino longwool sheep).
		The sheep were already native to the area and are believed to have had a substantial amount of Merino blood in them.
	www.sheep101.info /breedsG-I.html (2217 words)

	[No title] (Site not responding. Last check: 2007-10-31)
		In Booroola Merino x Romney ewes there was significant association between the HbB allele and the F gene carriers, as well as between the HbA allele and non-carriers.
		The Booroola Merino ewes showed the same trend though it was non-significant.
		While the HbB allele was associated with higher ovulation rate in Booroola Merino crosses, it was not an absolute marker for the F gene.
	nzsap.org.nz /proc/1986/ab86050.txt (238 words)

	Reproductive Physiology - The Merck Veterinary Manual
		Crossing British breed rams homozygous for the gene with Merino ewes produces heterozygous crossbred ewes that have high ovulation rates; in Australia and the USA, they are crossed with meat breeds to produce lambs for meat.
		The response to this “ram effect” depends on the depth of anestrus of the ewes (which is generally higher in British breeds), in the middle of the photoperiod anovulatory season, in nutritionally challenged ewes, in young ewes, and in the early postpartum period.
		Merino ewes respond readily throughout the photoperiod anovulatory season, while British breeds commonly respond only when the onset of the ovulatory season is close.
	www.merckvetmanual.com /mvm/htm/bc/181802.htm (1552 words)

	NZSAP 1980Proceedings: Abstract AB80035 (Site not responding. Last check: 2007-10-31)
		Data are reported from three comparisons of local breeds with their Booroola Merino crosses.
		Booroola Merino and local Merino ewes grew very similar wool.
		Booroola x Longwool crossbreeding resulted in additive changes in fibre diameter, bulk, staple length and yield.
	nzsap.org.nz /proc/1980/ab80035.html (123 words)

	ACIAR - Project Summary for: AH/2002/038 (Site not responding. Last check: 2007-10-31)
		A major finding of the earlier project was that the Australian Booroola fecundity (prolific) gene seems to have originated in the Garole sheep from the Sundabans in eastern India.
		However, the increase in litter size with one copy of the gene in this study is similar to that reported in the literature for the Booroola Merino.
		From the UNE Booroola flock, all 13 rams and 54 ewes tested were FecB BB confirming the homozygous nature of the flock.
	www.aciar.gov.au /web.nsf/projectprint/ACIA-6EWMY7?opendocument (2411 words)

	Merino Tips and information - @3How.info
		The merino is most numerous breed of sheep in the world.
		Merino wool roving fiber for felting and spinning.
		Merino.co.nz - Merino Breeding and farming in New Zealand...
	www.4words.info /c/Merino.shtml (243 words)

	[No title]
		The 75-80 percent of the 200 Prolific Merino nucleus flock at Debrecen is FecB homozygous carrier.
		Material and Methods The breeding of this breed had started from the Hungarian Merino: the crossings were made with Booroola Merino rams bought from New-Zealand which carry the prolific gene.
		The average lambing interval according to litter size for Prolific Merino ewes Litter sizen% xSEn xSEFP121935.0289.55.178467290.03.541224839.0290.34.8665.930.015312219.5306.16.9094365.7307.212.770540.7349.238.311164306.95.976610.1222.076.622All together630294.376.830PSYMBOL 60 \f "Times New Roman" \s 100.05 Conclusions It is possible to maintain homozygosity for the FecB gene and on the other hand to moderate the litter size by frequent lambing.
	www.fao.org /Regional/europe/PUB/RTS50/134.doc (1148 words)

	origin of tamarack prolific sheep (Site not responding. Last check: 2007-10-31)
		The Tamarack Prolific Sheep is a polled Dorset based breed that carries the major gene for prolificacy called the 'B' gene, also referred to as the Booroola gene.
		The B gene comes in pairs and has a major influence on the prolificacy (numbers of lambs born) for the sheep that carry this unique gene.
		Above is an example of the loin eye size from a Tamarack Ile de France ram X booroola dorset ewe.
	www.tamaracksheep.com /origin.html (296 words)

	Secretion of Inhibin A and Follicular Dynamics throughout the Estrous Cycle in the Sheep with and without the Booroola ...
		McNatty KP, Heath DA, Hudson NL, Ball K, Condell L 1992 Concentrations of immunoreactive inhibin in ovarian and peripheral venous plasma and follicular fluid of Booroola ewes that are homozygous carriers or non-carriers of the FecB gene.
		Merino ewes which were homozygous, heterozygous or non-carriers of a fecundity gene influencing their ovulation rate.
		Bindon BM 1984 Reproductive biology of the Booroola Merino sheep.
	endo.endojournals.org /cgi/content/full/138/12/5333 (6095 words)

	Cloning of the inhibin/activin beta B subunit gene from the Booroola merino sheep -- Rodgers 6 (1): 87 -- Journal of ...
		Cloning of the inhibin/activin beta B subunit gene from the Booroola merino sheep -- Rodgers 6 (1): 87 -- Journal of Molecular Endocrinology
		Cloning of the inhibin/activin beta B subunit gene from the Booroola merino sheep
		The gene encoding the inhibin/activin beta B subunit was isolated from a Booroola Merino ewe which had two copies of the unidentified fertility gene.
	jme.endocrinology-journals.org /cgi/content/abstract/6/1/87 (229 words)

	CSIRO PUBLISHING - Australian Journal of Experimental Agriculture (Site not responding. Last check: 2007-10-31)
		Performance of crossbred progeny of Trangie Fertility Merino and Booroola Merino rams and Poll Dorset ewes.
		Merino rams of the Trangie Fertility and Booroola strains were joined to Poll Dorset ewes in single sire mating groups over 3 years.
		Lamb birth weight averaged 4.1 kg, 80.8% of lambs survived to 3 days of age and growth rates to weaning (mean 93 days) averaged 289 g/day.
	www.publish.csiro.au /nid/72/paper/EA9951069.htm (245 words)

	Secretion of bioactive inhibin by the ovary of the Booroola Merino ewe with or without a copy of the fecundity (F) gene ...
		Secretion of bioactive inhibin by the ovary of the Booroola Merino ewe with or without a copy of the fecundity (F) gene -- Tsonis et al.
		In Booroola ewes with a F/- genotype, inhibin secretion then increased again, towards luteal rates, in the mid and late follicular phases.
		In Booroola ewes without a copy of the F gene (+/+) inhibin secretion remained low at all three sampling times in the follicular phase.
	joe.endocrinology-journals.org /cgi/content/abstract/119/1/R5 (314 words)

	Interior Textiles, Wool Breeds, The Australian Merino
		Fine and superfine Merinos are found in the northern and southern tablelands of
		The Fonthill Merino was evolved by crossing American-bred Rambouillet Merino
		The Booroola Merino was originally developed on the Southern Tablelands of
	www.mlm.com.au /work/woolmark/interior/breeds/sheep/merino.html (338 words)

	CSIRO PUBLISHING - Reproduction, Fertility and Development (Site not responding. Last check: 2007-10-31)
		Concentrations of FSH were measured in new-born lambs in Booroola Merino x Romney and Booroola Merino flocks where the Booroola F gene was segregating, and in progeny from sires of a prolific strain of Romney sheep.
		FSH concentrations increased with age and liveweight in Booroola Merino x Romney ewe lambs to reach peak concentrations at 4-6 weeks of age.
		Concentrations of FSH in the high-ovulation-rate progeny at 3 and 5 weeks of age did not differ from those in the low-ovulation-rate progeny, but were lower than those in the progeny of an FF Booroola Merino x Romney ram.
	www.publish.csiro.au /nid/44/paper/RD9890299.htm (338 words)

	1817.htm (Site not responding. Last check: 2007-10-31)
		Introgression of the Booroola gene reached the stage of the third backcross in the Awassi, Assaf and the Rambouillet crosses.
		In all cases the Booroola crosses were superior in prolificacy.
		It is expected that the beneficial economic contribution of the Booroola gene will increase along with the upgrading to the local breeds.
	www.bard-isus.com /FRAbst/1817.htm (143 words)

	Beef breeding technologies - 2. Screening populations for evidence of major genes (Site not responding. Last check: 2007-10-31)
		Within Australia, probably the best known of these single gene effects are the Booroola gene in Merino sheep, the muscular hypertrophy, or double-muscling gene in European breeds of cattle and the gene that causes porcine stress syndrome in pigs.
		In sheep, animals that are homozygous for the Booroola allele (i.e.
		The basis for the superior lambing performance of the Booroola strain is their very high ovulation rate (three times that of normal Merinos) and their extended breeding season relative to non-carrier animals.
	www2.dpi.qld.gov.au /beef/2239.html (2179 words)

	NZSAP 1992 Proceedings: Abstract AB92053 (Site not responding. Last check: 2007-10-31)
		Crossbreeding with Booroola Merino rams was initiated in 1986 in Israel to transfer the FecB allele to the Awassi (Aw) and the Assaf (As) dairy breeds to increase their prolificacy.
		The effect of the Booroola gene on lamb production in the Aw and the As crosses found to be similar to its effect in other Booroola crosses.
		Our results suggest that some major genes may be involved in controlling the differences between the Aw and the As and the Booroola in growth, milk production and birthcoat type.
	nzsap.org.nz /proc/1992/ab92053.html (188 words)

	Comparison of Booroola Merino and Finnsheep: effects on productivity of mates and performance of crossbred lambs -- ...
		Comparison of Booroola Merino and Finnsheep: effects on productivity of mates and performance of crossbred lambs -- Young and Dickerson 69 (5): 1899 -- Journal of Animal Science
		Comparison of Booroola Merino and Finnsheep: effects on productivity of mates and performance of crossbred lambs
		Booroola Merino (BM) and Finnsheep (FS) rams were mated to FS and crossbred
	jas.fass.org /cgi/content/abstract/69/5/1899 (354 words)

	A Cornucopia of Sheep Breeds
		These include Finn sheep, the Romanov, the Booroola Merino and the Barbados Blackbelly.
		The Booroola Merino is a specific strain of Merino in which prolificacy was found to be controlled by one gene -- the F (for fecundity) gene.
		Those which require a higher level of care (or labor) include the meat breeds, long wool breeds, prolific breeds and dairy sheep, though any flock of sheep can be selected and managed to minimize care (labor).
	www.sheepandgoat.com /articles/sheepbreeds.html (2376 words)

	[No title]
		The absence of the }{\fs22\cf1\lang2057\langfe1036\langnp2057 FecB}{ \fs22\cf1\lang2057\langfe1036\langnp2057 B}{\i0\fs22\cf1\lang2057\langfe1036\langnp2057 (Booroola) and }{\fs22\cf1\lang2057\langfe1036\langnp2057 FecX}{\fs22\cf1\lang2057\langfe1036\langnp2057 I}{\i0\fs22\cf1\lang2057\langfe1036\langnp2057 }{ \i0\fs22\cf1\lang2057\langfe1036\langnp2057 (Inverdale) mutations in all of the Lacaune heterozygous males was checked.
		\par Piper L.R., Bindon B.M. The Booroola Merino and the performance of Medium Non-Peppin crosses at Armidale.
		\par }{\i0\fs22\cf1\lang2057\langfe1036\langnp2057 Piper L.R., Bindon B.M. and Davis G.H. The single gene inhritance of the prolificacy of the Booroola Merino.
	groupe.toulouse.inra.fr /IWMGQSG/lecfrep.rtf (737 words)

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