"Experientia docet" - Experience is the best teacher
Suitable feeding systems for fat lamb production
The development of efficient rations for fat lamb production was investigated using a variety of succulent feeds. Forty Dohne Merino were divided annually for three years immediately after parturition into four groups of ten. Group 1 received maize silage. Group…
Is there a lactation anoestrus in the sheep?
Twenty South African Mutton Merino ewes, whose breeding season begin in October/November, and twenty crossbred Mutton Merino x Border Leicester ewes, whose breeding season begin in February, lambed during the second half of October. Half of each group suckled single…
Synchronisation of oestrus in sheep early in the breeding season: The vaginal environment and fertility
Two hundred and eight Dormer ewes were included in an investigation into the effect on ewe fertility of dihydrostreptomycin antibiotic pessaries used with fluorogestone acetate-impregnated intravaginal (FGA) sponges for the synchronisation of oestrus and ovulation early in the breeding season…
Gross ovarian changes in the cycling and anoestrous Angora goat doe
Ovarian follicular activity increased sharply during the first 12 days of the luteal period, then ceased temporarily. Renewed follicle growth commenced towards pro-oestrus and terminated in ovulation. Although follicular activity decreased considerably during the period of anoestrus, relative large individual…
Verband tussen reproduksie, produksie en gedrag by Angorabokooie
Relation between reproduction, production and behaviour in Angora goat does: Simple and partial correlation coefficients were determined between certain reproductive, productive and behavioural properties of Angora goat does kept under penned conditions for a period of four years. Highly significant…
The effect of daylength on the reproductive tract of the Merino ram
Forty-eight 2½-year-old Merino rams were maintained in a specially insulated and ventilated enclosure at constant body weight on a constant nutritional level. Four were slaughtered each month and changes studied in the reproductive tract. Weight of epididymides, sperm motility and…
The effect of age on the composition of blood of beef and dairy cattle
The relationship between the blood constituents of beef and dairy cattle and their age was investigated. The experimental group comprised 12 Afrikaner cows and their calves and 12 Friesian cows and their calves. Blood samples were drawn every fortnight and…
Die voorkoms van bleek, sagte en waterige (BSW) spiere in spekvarkkarkasse by twee fabrieke in Suid-Afrika
The occurrence of pale soft and exudative (PSE) muscle in bacon carcasses at two factories in South Africa At two bacon factories (A and B) in South Africa it was found in a survey that 8,6%(n=580) and 5,0%(n=1019) of the…
Some effects of shooting on losses of meat and meat-quality in springbok and impala
The amount of tissue damaged by bullet wounds and thus unfit for human consumption averaged 13,9% of the total carcass weight. When carcasses were grouped according to the locality hit by the bullet, it was found that shots through the…
Carcass composition of mature male blesbok and kudu
Data on the carcass composition of mature male blesbok and kudu shot on two Northern Transvaal nature reserves are presented. The mean live weights of the 22 blesbok and 18 kudu examined were 73,4 kg and 236,3 kg, cold carcass…
