نتایج جستجو برای: arabic ewes

تعداد نتایج: 100938  

2015
A. H. Aktaş Ş. Dursun Ş. Doğan Z. Kiyma U. Demirci

The aim of this study was to evaluate the effects of premating ewe weight and age on ewe reproductive performance, lamb growth and survival in Central Anatolian Merino (CAM) sheep. The trial included 4935 ewes and 5548 lambs from 23 breeder flocks in Eskişehir Province. The live weights (LWs) and ages of the ewes were recorded 1 week before the mating season. The number of lambs born, fertility...

Journal: :The Journal of endocrinology 2004
C Viguié Y Chilliard V Gayrard N Picard-Hagen P Monget A Dutour P-L Toutain

This study aimed at investigating the possible linkage between natural scrapie and alterations of the somatotropic axis. Scrapie-affected ewes exhibited 2-fold higher mean GH concentrations during both autumn and spring. GH pulse frequencies were higher in scrapie-affected ewes than in control animals (mean+/-S.E.M. number of pulses/24 h: 10.4+/-0.9 and 7.6+/-0.9 for scrapie-affected and contro...

Journal: :Acta tropica 2004
C J Ng'ang'a W K Munyua N Maingi P W N Kanyari

An investigation on the occurrence of peri-parturient rise in trichostrongylid nematode egg output in breeding ewes was carried out on a Ranch in the semi-arid area of Kajiado District in Kenya during the period May 1999-April 2000. During the study, 20 ewes randomly selected from the breeding stock and 20 un-mated female yearlings were monitored for faecal strongyle egg output every 3 weeks. A...

Journal: :American journal of veterinary research 2004
Mark C Jenkins Wenbin Tuo J P Dubey

OBJECTIVE To evaluate the immunologic response of a killed tachyzoite vaccine against Neospora caninum and its effectiveness in preventing fetal loss associated with experimentally induced neosporosis in sheep. ANIMALS 30 Dorset ewes. PROCEDURE Ewes were randomly allocated to receive vaccination on days 1 and 60 of the study with a killed N caninum tachyzoite preparation in a commercially a...

Journal: :Journal of animal science 2010
T L Neville J S Caton C J Hammer J J Reed J S Luther J B Taylor D A Redmer L P Reynolds K A Vonnahme

Lambs born from feed-restricted or overfed ewes can be lighter at birth, whereas maternal Se supplementation can increase fetal size near term. We hypothesized that birth weight would be inversely related to feed efficiency and growth rates during postnatal development. To examine the effects of maternal dietary Se and nutrient restriction or excess on postnatal lamb growth, diet digestibility,...

Journal: :Journal of animal science 1993
N Y Iman A L Slyter

Production data from 681 yearling ewes were evaluated for the effect of ewe breed and management system on fertility, prolificacy, lamb birth weight, lamb survival, lamb weaning weight, ewe fleece weight, and total lamb weight weaned per ewe exposed. Two hundred seven straightbred Targhee (T) and 474 1/4 Finn-1/4 Dorset-1/2 Targhee (FDT) crossbred ewes managed in a range or farm flock system we...

Journal: :Journal of animal science 1984
D W Sanson D M Hallford G S Smith

Fine-wool ewes received for 2 yr a complete pelleted basal diet (11% protein) or the basal diet fortified with 3.5% cottonseed meal (CSM; 12% protein) or gamma-irradiated (1 megarad) dried solids (SS; 12% protein) from primary (undigested) sewage (Las Cruces, New Mexico, municipal sewage). Five ewes fed each diet were sampled to determine Ag, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, P, Pb and...

Journal: :Journal of animal science 1994
W S Ramsey P G Hatfield J D Wallace G M Southward

Targhee ewes with single or twin lambs were used in four trials during early lactation through weaning to evaluate ewe milk production (MP), kilograms of lamb weaned, and forage intake by ewes and lambs. During Trial 1, ewes with lambs were individually penned, fed .45 kg of barley-ewe-1.d-1 and allowed ad libitum access to chopped alfalfa hay. Trials 2, 3, and 4 were conducted on three differe...

Journal: :Circulation research 1977
W Berman P J Ravenscroft L B Sheiner M A Heymann K L Melmon A M Rudolph

Electrocardiogram (ECG) electrodes and carotid arterial and superior vena caval (SVC) catheters were placed in eight nonpregnant ewes and 11 fetuses (109-129 days gestation) to measure heart rate, arterial presssure, P-R interval, left ventricular pre-ejection period (PEP), and left ventricular ejection time (LVET), before and after digoxin infusion into the SVC. After the ewes were killed, the...

Journal: :Journal of animal science 1975
J E Pexton S P Ford L Wilson R L Butcher E K Inskeep

Levels of prostaglandins F (PGF) in uterine tissues and in uterine and peripheral plasma from ewes with and without IUD's were examined. Mature ewes were laparotomized on day 2 of the estrous cycle. Fifteen ewes with a corpus luteum on only one ovary were assigned at random to either a treated group (10 ewes) which received an intrauterine device (IUD) in each uterine horn or to a control group...

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