Now showing items 21-30 of 68
The interactions between maturity type and pre-feedlot plane of nutrition on the growth and performance of steers.
The growth of tissues (bone, muscle and fat), along their natural growth curve, is controlled by a complex array of interactions. Growth gradients exist between the tissues and the body as a whole, bone being earlier ...
Meeting nutritional requirements of mature broiler breeder hens.
The overall objectives of this study were to compare the response of broiler breeder hens to dietary lysine at peak rate of lay and late in the laying cycle when rate of lay has declined, to compare the coefficients of ...
Biological and economic response of laying hens to dietary lysine and energy contents during peak and late production periods.
The effect of dietary energy and amino acid contents during the peak of production of laying hens has been well investigated, but little is known about the late production period. In most of the previous studies the focus ...
The digestibility, intake and faecal marker patterns of Hereford and Friesland bulls consuming kikuyu (Pennisetum clandestinum) using N- alkanes.
Kikuyu is an important summer pasture species in South Africa for animal production, and is seemly suitable for growing out dairy replacement heifers. Previous research by Horne (1996) and Fushai (1997) showed that Friesland ...
The effect of feed type and diet quality on kinetics of digestion : the degradation properties of certain protein supplements, and the effect of concentrate supplementation and basal roughage quality on eating behaviour and particle passage from the rumen of sheep.
The unique anatomical structure of the ruminant animals' digestive tract allows them to convert forages containing high levels of fibre into the valuable products of meat, milk and wool. At the same time, an interdependent ...
Matching the nutritional requirements to performance in broiler breeder hens.
Quantitative food restriction during the rearing and laying period has become the standard management procedure in commercial broiler breeder operations to control the rapid growth rate of broiler breeders. This raises ...
Farm environmental factors and cow physiological traits affecting the gender ratio of newborn dairy calves.
Farm environmental factors in the KwaZulu-Natal Midlands were investigated to determine whether any of them had an influence on the calf gender ratio in dairy herds in this area. Heat detection score (P<0.001), number ...
The effect of genotype, drying conditions and microbial enzyme supplementation of the nutritive value of hybrid and open pollinated maize grain for broiler feeding.
Three experiments were conducted to examine the effects of tannin inclusion in the diet; heat treatment of maize; and maize genotype and sex of broilers; on the nutritive value of maize-soyabean based diets, as affected ...
The biological and economic responses of growing pigs to nutrient density.
No abstract available.
Nutritional quality of protein-rich feed resources for scavenging chickens.
For sustainable intensification of village chickens, it is imperative to explore the potential of non-conventional animal protein (NCAP) feed resources. The broad objective of the study was to assess the nutritional quality ...