نتایج جستجو برای: awassi ewe

تعداد نتایج: 2512  

2006
ISTVÁN KOMLÓSI

In order to determine the possible effects of udder traits on milk yield and milk composition a serial of experiments were carried out on five different sheep farms, between 1998-2000. Ten breeds and genotypes were included in these experiments: Merino, (Merino x Pleven Blackhead) F1, Pleven F1 x Black East Friesian, Lacaune, (Merino x Lacaune) F1, British Milksheep, (Merino x British Milksheep...

2013
János Oláh Szilvia Kusza Sándor Harangi János Posta András Kovács Anna Pécsi Csilla Budai András Jávor

In this study, the quantitative and qualitative traits of semen were studied in seven rams of different breeds (Prolific Merino, Cokanski Tsigai, Barbados Blackbelly, Bábolna Tetra, Awassi, Ile de France and Suffolk), bred in Hungary. The semen parameters (density, volume, pH, mass motility, % motility, thawing and heat resistance), freezability of semen and the factors influencing these parame...

Journal: :Small ruminant research : the journal of the International Goat Association 2000
Titi Tabbaa Amasheh1 Barakeh Daqamseh

An experiment was conducted to investigate the effect of different crude protein (CP) levels on the growth performance of Awassi lambs and Black goat kids. Forty lambs and 40 kids were randomly selected and allocated to separate pens of equal size for 75 days. Each group was fed one of four rations containing 12, 14, 16, or 18% CP. Final weights and gains for lambs were higher (P<0.001) than th...

2001
David L. Thomas Yves M. Berger Brett C. McKusick Randy G. Gottfredson

East Friesian-sired F1 ewe lambs (n = 27) and Lacaune-sired F1 ewe lambs (n = 31) born in 1999 were compared for lamb production, lactation performance, and udder morphology traits in a dairy sheep production environment in 2000. The ewe lambs were the progeny of seven East Friesian and five Lacaune sires. A contemporary group of high percentage East Friesian ewe lambs (> 3/4 East Friesian, n =...

2016
J. Alison Brown David P. Kirschten Gregory S. Lewis Bret Taylor

Ewe productivity is synonymous with annual litter-weight weaned (LWW) per ewe exposed to rams for breeding, and LWW is largely a function of number of lambs born (NLB) and weaned (NLW). Selecting for LWW should increase litter size and numbers of ewe-ram co-twins. Thus, we used historical records to determine whether sex of co-twin affected lifetime productivity of twinborn ewes. United States ...

In this study 71 head of conceiving ewe and their progeny (91 head) from the flock of Lori-Bakhtiari sheep (360 head), in Sholi Station were randomly selected to determine the relationship between the immunoglobulin (IgG) concentration in the ewe's serum and colostrum, and lamb's serum. Ewe blood sample, colostrum of ewe and blood of the lamb was taken 2 weeks before parturition, 1 to 8 hours a...

Journal: :Wahana peternakan 2023

The aims of this study were to identify the morphometric measurements and body weights Thin-tailed ewe, examine qualitative characteristics ewe close relationship between weight other measurements. This used 40 female Ewe aged under 1 year. method was purposive sampling. Parameters observed face length, ear chest circumference, width, depth, shoulder height, hip front leg hind tail length weigh...

2003
S.W.P. Cloete A. R. Gilmour J. B. van Wyk

Data were recorded for annual reproduction, wool traits and pre-joining live weight of between 992 (for staple strength) to approximately 1200 production records of Merino ewes over the period from 1997 to 2002. The resource population has been divergently selected from the same base since 1986, either for (H line) or against (L line) maternal multiple rearing ability. When expressed relative t...

Journal: :Journal of animal science 1973
D E West R Bogart N A Hartmann

O NE hundred seventy-nine ewe lambs from a three-breed polyallel cross involving the Willamette, Suffolk and Hampshire breeds were used to study the genetic aspects of fertility. Ewe birth weight, ewe weight at mating and fertility were analyzed in relation to heterosis, general combining ability, maternal effect, reciprocal differences, and the effects of a hormone treatment. Treatment consist...

ژورنال: علوم آب و خاک 2007
محمد علی طالبی, , محمد علی ادریس, , محمود وطن خواه, ,

In this study 5025 records from the Lori-Bakhtiari sheep stud were used to predict phenotypic, genetic and environmental change in ewe traits from 1989 to 2004. Best linear unbiased prediction (BLUP) of breeding values were estimated by Drivative Free Restricted Maximum Likelihood (DFREML) procedure using single and multi-trait animal model. Phenotypic, genetic and environmental trends were cal...

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