The objective was to merge science and practice determine the feasibility of a mixed suckling milking system compared with traditional exclusive management on production performance dairy sheep their progeny in an outdoor pasture-based farming at commercial scale. At 14 d postpartum, twin- triplet-bearing mixed-age East Friesian ewes were randomly allocated either once-a-day milking,suckling ea...

A flock of 370 Dorset x Romney ewes with up to 96% autumn lambtng was developed without the aid of hormones. Data from flock and experimental records were used to compare the performance of autumnand spring-born lambs and their dams. Preliminary findings for three seasons show that ewes lambed in autumn had a greater spread of lambing, lower litter size and fewer perinatal lamb deaths. Growth o...

This experiment aims to study the effects of dietary fat level during suckling period on growth performance and meat characteristics in twin lambs. Thirty pairs male Hu lambs were divided into two groups, namely high (HF) normal (NF). Lambs HF group fed milk replacer starter containing 26.89% 5.07% fat, whereas those NF 15.15% 2.80% respectively, from eight 60 days age. From 120 age, all a feed...

Abstract This study aimed to detect the quantitative trait loci (QTL) which affecting growth traits in some parts of chromosomes 1 Sanjabi lambs. The population consisted six groups fathers had an average 39.17 Initially, were genotyped for eight microsatellite markers on chromosome 1, and offspring heterozygote genotyped. body’s weight at birth, 3, 6, 9, 12 months, corrected fixed effects year...

A group of 12 Merino lambs, 3,5 months of age, which were still suckling, were each dosed with 40 000 infective larvae of Trichostrongylus axei on Day 0. From Day +62-Day 64 each of these lambs and those of a 2nd group of 11 controls were dosed with 30 000 infective larvae of Haemonchus contortus, and all the lambs of both groups were killed on Day +90. Attempts to use T. axei to protect them a...

The first ovulation and first oestrus after parturition were recorded in four groups of Merino ewes which: (a) reared their lambs normally, (b) were allowed to suckle their lambs only during three 1-hr periods each day, (c) had their lambs removed on the day after birth, or (d) had their lambs removed on the day after birth and were injected intramuscularly with 5 i.u. oxytocin ten times each d...

The present study investigated the effect of maternal vitamin E and fatty acid supplementation on lamb antioxidant status. Forty-eight ewes were fed one of four concentrate diets supplemented with a basal (50 mg/kg) or supranutritional (500 mg/kg) level of vitamin E plus a source of either saturated fat (Megalac; Volac Ltd, Royston, Hertfordshire, UK) or long-chain PUFA (fish oil) from 6 weeks ...