To evaluate the effects of glutamine (Gln) supplementation on sow performance during late gestation and lactation and their offspring, eighty pregnant, multiparous sows of a commercial hybrid line were used in a completely randomized, 2 × 2 experimental design at…
This study was carried out to compare some production traits of Alpine × Hair-crossbred, Saanen × Hair-crossbred, and Hair goats in rural conditions. In the first year of the study, a total of 45 animals were used to determine the…
The influence of lucerne hay quality on the milk production potential and milk composition of Jersey cows was investigated. Three different grades of lucerne hay (Prime, Grade 1, Grade 2; selected according to the New Lucerne Quality Index) were included…
Describing lactation in mammals using a lactation curve aims to provide a concise summary of the pattern of milk yield and valuable information about the biological and economic efficiency of the animal or herd under consideration. A total of 106…
The recycling of urea to the rumen was studied in Merino ewes during different physiological states using radioactive tracers. The results showed that although the proportion of urea recycled differed, similar amounts were recycled in dry and pregnant sheep over…
Urea-supplemented wheat straw (UWS) was substituted stepwise by urea-ammoniated wheat straw (AWS) in diets fed to SA Mutton Merino ewes during late pregnancy and lactation. The experimental animals were fed ad libitum under zero grazing conditions over the last 8…
Concentrations of plasma copper and zinc as well as blood selenium were determined in single and twin lambs and their dams for a period of 120 days from the birth of the lambs, using Merino, Dohne Merino and SA Mutton…
Estimation of 300-day lactation yields of milk, fat, protein and lactose from combined morning and afternoon milk samples collected at five-weekly intervals is time-consuming, and proportional bulking of morning and evening samples is not always done correctly by farmers. This…
The aim of this experiment was to determine the effect of genetic selection for milk production on nutrient partitioning at a high vs. a low plane of nutrition. Twelve Indigenous goat does and eight Saanen x Indigenous crossbred does were…
The aim of this experiment was to characterize the milk yield of the Tswana goat of Botswana. Twenty-one Tswana goat does were allocated to one of three diets formulated to provide energy for maintenance and a milk yield of either…
The aim of this study was to determine whether blood metabolite concentrations in free-ranging indigenous goat are sensitive to expected variations in nutrient supply, and whether they could be used to evaluate different kidding season at two locations subject to…
