This study was conducted to investigate the effects of rumen-protected γ-aminobutyric acid (GABA) on feed intake, growth performance and expression of related genes in growing lambs. A total of 24 lambs weaned at age of 50 days were divided into four block of six based on their BW, six lambs within a block were allocated to three pairs, which were then assigned randomly to three treatments with...

Two trials examined genetic and environmental influences on muscle fiber type proportions. Trial 1 compared Polypay and Coopworth x Polypay male lambs either left intact or castrated early, mid or late in growth. Trial 2 compared Hampshire-sired lambs (females, early castrate wethers and late castrate wethers) from Suffolk x Coopworth dams and whiteface x Coopworth dams. Half the lambs in each ...

A consensus of expert opinion was used to provide both face and consensual validity to a list of potential indicators of sheep welfare. This approach was used as a first step in the identification of valid welfare indicators for sheep. The consensus methodology of the National Institute of Health, using pre-meeting consultation and focus group discussions, was used to ascertain the consensus op...

A trial with 200 ewes and 127 lambs showed that vaccination of lambs with 2 doses of Oncosphere Secretory Antigen (OSA) 4 weeks apart, at either 4-8 and 8-12 weeks or at 12-16 and 16-20 weeks of age, was equally effective in protecting them against infestation with the larval stage of Taenia multiceps. In this trial, the lambs of ewes, vaccinated with OSA when they were 90 and again 120 days pr...

Cardiac defects associated with increased pulmonary blood flow result in pulmonary vascular dysfunction that may relate to a decrease in bioavailable nitric oxide (NO). An 8-mm graft (shunt) was placed between the aorta and pulmonary artery in 30 late gestation fetal lambs; 27 fetal lambs underwent a sham procedure. Hemodynamic responses to ACh (1 microg/kg) and inhaled NO (40 ppm) were assesse...

twenty-four 35-day-old lambs were distributed to a completely randomized design with 3 treatments to study the effects of number of feeding buckets per pen on performance, haematology and behaviour indicators. treatments consisted of 8 (t1), 4 (t2) or 2 (t3) feeding buckets/pen (8 lambs/pen). during the experiment, concentrate was fed at 08:30 in individual feeders. daily dry matter intake (dmi...

This study was carried out to investigate the effects of probiotics and Chinese medicine polysaccharides (CMP) on carcase characteristics, meat quality, muscle fibre type intramuscular fat deposition in lambs. Forty female lambs with 4-5 months old 21.69 ± 0.46 kg were randomly divided into four groups as follows: control, probiotics, CMP + groups. The results showed that supplemental increased...

Several local sheep breeds of the Alpine regions are in danger extinction as a result mountain farms being abandoned. Three fattening trials were carried out on 4 Veneto region (Foza, Lamon, Alpagota, and Brogna) total 115 ewes suckling lambs, weaned lambs heavy slaughtered at 1356 ± 267, 104 24, 219 26, 342 14 d age, respectively. The results confirmed that adoption mixed diets resulted good v...

The experiment was conducted in the animal field belonging to Department of Animal Production Techniques at Technical College / Al-Mussaib for a period more than eight months, starting on 08/08/2021 and ending 21/5/2022.The included purchase Alfalfa hay stalks, their treatment with urea beam plastic, molasses, composition, mixing pressing concentrated ration, preparation individual sheds from c...

The single largest influence on the survival of lambs in thefirst few days of life is their birthweight. Fetal growth and birthweight are regulated by genotype of the fetus, maternal genotype, maternal nutrition and the external environment. In this paper we report the extent to which the changes in maternal liveweight during pregnancy and lactation (liveweight profile) ofMerino ewes can be use...