Sixteen native ram lambs weaned at 10 wk of age were divided into two groups. Eight animals were immunized against LHRH with a mixture of two fusion proteins: ovalbumin-LHRH-7 and thioredoxin-LHRH-7. The immunized lambs received a primary immunization plus two booster immunizations at 4 and 12 wks. Animals in the control group (n=8) were not treated. Scrotal measurements and blood samples were ...

The present study, performed in nonsedated, conscious lambs, consisted of two parts. In the first part, we 1) examined for the first time whether a respiratory response to pulmonary C-fiber stimulation could be elicited in nonsedated newborns and 2) determined whether this response could be abolished by capsaicin pretreatment. Then, by using capsaicin-desensitized lambs, we studied whether pulm...

We conducted experiments to determine whether lambs fed grain prefer foods and solutions containing sodium bicarbonate (NaHCO3) and lasalocid, compounds capable of attenuating acidosis. In Exp. 1, we determined whether lambs fed barley preferred flavored rabbit pellets (RP) containing NaHCO3 and lasalocid. Lambs in two groups (n = 10/group) were fed increasing amounts of barley on d 1 to 12 (30...

This study investigated the effects of feeding cotton gin trash (CGT) to Mecheri ram lambs, as an alternate diet, on growth performance, carcass characteristics, and meat quality. A performance trial was conducted with thirty-two weaned lambs average body weight 12.64 ± 0.74 kg, which were assigned four groups (n = eight animals in each group). The diet’s roughage part replaced by CGT at percen...

Inclusion of thiopeptin, a sulfur-containing peptide antibiotic, at 0, 2.75, 5.5, 8.25, 11 and 22 ppm in the feed was evaluated in 8-week growth trials with 252 lambs. An abrupt diet shift to micronized milo at the start of the trials was used to provide a lactic acidosis challenge. Five of 78 control lambs died within 48 hr after the challenge. In lambs fed diets containing thiopeptin at level...

In this study were used 40 newborn singleton Akkaraman and Merino lambs with 4 trial groups consisting of selected 10 homogeneous according to race gender. Trial was carried out 100 days, covering 5 feeding periods 21-day from the birth lambs. The fed lamb starter feed for first two months, then grower ad-libitum 250 g/day/head dry alfalfa hay. At end study; it determined that lowest total anti...

we conducted this study to determine the level of immunity after vaccination of lambs with whole bodyechinococcus granulosus. to do so, 200 mature e. granulosus parasites, which were kept in 10% formalinefor 8 months, were obtained from the department of parasitology, school of veterinary medicine, ferdowsiuniversity of mashhad. the soluble protein of the parasite was prepared. the sample was h...

To examine the effect of diet on luteinizing hormone (LH) secretion, basal and luteinizing hormone releasing hormone (LHRH)-induced LH release was compared in intact or castrated-estradiol-17 beta implanted Finn-Dorset lambs. Ten to 12 wk old ram (n = 20) and ewe lambs (n = 20) were maintained under a 8L:16D photoperiod and fed for high (HG, 163 to 168 g/d) or low (LG, 76 to 103 g/d) rates of g...

The aim of this study was to determine the effects pasture (cocksfoot cv. porto (CFP) and lucerne) supplementation grazing lambs with pellets or without plant oil infusion on performance carcass characteristics. Forty-eight White Suffolk x Corriedale first-cross weaners were randomly assigned one four treatments in a split-plot experimental design: (1) CFP lucerne pastures only (control); suppl...