The study was conducted to replace fish meal partially as protein source in the rations of growing pigs. In the first trial fish meal was partially replaced with skim milk powder, while liquid skim milk was used to partially replace…
Twelve Mutton-Walrich Merino cross wether lambs were randomly allotted to two groups of 6 at 8 weeks of age after they were weaned. The one group received a high energy diet just below ad libitum and the other 80% of…
Maize silage, stover and ripe maize plants were compared with one another in respect to dry matter yield and dry matter losses. These feeds were also used in metabolism and production studies. Whereas 8,63% of the original harvested dry matter…
Six different ratios of maize supplementation to maize silage were evaluated for slaughter lambs in 2 experiments. Maize silage, supplemented at l% of mean live body mass with maize, resulted in the highest growth rate in the first experiment, whereas…
Fifty pregnant S.A. Mutton merino ewes, the mating of which had been synchronized, were allotted to two planes of nutrition six weeks prior to lambing. The ewes bearing multiple lambs consumed significantly (P<0,01) less feed per kg birth mass of…
The effect of environmental factors on weaning traits of Afrikaner calves Data from 1142 Afrikaner calves from the herd of stud Afrikaner cattle at the Glen Agricultural Research Institute were used. The calves were the progeny of' 27 sires and…
The extensive production of beef according to the principles of controlled selective grazing and improved herd management on natural veld in the sour mixed bushveld, was investigated at the Soutpan experimental farm. Originally a start was made with Afrikaner type…
The average generation interval of 3,53 years in S.A. Mutton Merino stud flocks in l96l/62 is the result of an average ram-age of 3,57 years and an ewe-age of 3,49 years .In 1971/72 the average age of rams and ewes…
Nine Landrace x Large White baconer pigs were stunned in the usual way by means of an electric stunner (control, normal stunning) while 9 other pigs were stunned in an unconventional way by applying an electric current for 45 s…
Culled giraffes Giraffa camelopardalis giraffa were dissected into standard cuts as far as possible and their mass was determined. Carcass composition was studied by means of buttock dissections and meat quality by means of muscle fibre diameter measurements. Mean total…
The implications of the traditional breeding structure of Merino sheep are discussed. It is indicated that it is unacceptable that material from stud flocks have a greater genetic merit than animals from commercial flocks. A description of the scientific selection…
The object of this experiment was to find out whether ground supplements could be conveyed to the abomasa of sheep via the reticular grooves. If ruminal fermentation could be avoided in this way, suitable supplements would be more efficiently utilized…
The growth rate of medium-type pullets was manipulated by various quantitative and qualitative food restriction treatments in order to ascertain which of these methods produced the most satisfactory economic results. The results were based on food intake during the growing…
A total of 2 400 medium type pullets was used in an experiment to compare three methods of nutrient restriction from 2 to 20 weeks of age. The treatments consisted of the following: two quantitative food restriction treatments designed to…
In an experiment involving the feeding of different protein sources to one-week old chickens, no statistically significant differences occurred in the amino acid content of the chicken carcasses despite considerable differences in body mass changes as a result of the…
