Table 22 recommended chemical composition of feeds for intensively reared rabbits of different categories the recommended amounts of other essential amino acids have been estimated simply on the basis of regular satisfactory diets. The most common feed categories in intensive european rabbitries are for breeding females (lactating does, pregnant or not), young rabbits of weaning age (post-weaning or peri-weaning feeds, the latter also consumed by the mother) and rabbits for fattening. Amaranthus is routinely fed to rabbits at the bunda agricultural college in lilongwe, malawi. During this period the changes in feeding behaviour are remarkable the young rabbit goes from a single milk feed a day to a large number of alternating solid and liquid feeds distributed irregularly throughout the day 25 to 30 solid or liquid meals every 24 hours Anatomy and Physiology The Chemical Basis of Life cкачать бесплатно
In the latter case, the intake rate and hence the function of caecotrophy are governed by the light regime to which the animals are subjected. The next category is growing rabbits (far more research work has been done on this than any other category). In these trials, even where this acacia was used alone, the authors noted no incidence of diarrhoea or symptoms attributable to mimosine. Laboratory animals stopped growing when they were given 20 g of green potato peelings a day in addition to their normal feed ration. Local rabbits grew faster with this feed (104 g a week with land race) than with an imported balanced feed (83 g).
The toxicity thresholds of lysine and arginine are well above the recommended intake levels скачать Anatomy and Physiology The Chemical Basis of Life fb2 txt epub pdf бесплатно
Incorporating 25 percent water hyacinth meal in a balanced feed gives good results. On the same line, two values having the same index letter do not differ from one another at the threshold p 0. Its function is mainly to provide crude fibre and a small amount of energy. This legume can be an attractive source of protein and fibre for rabbits. Considering the fact that some parts of the intake may be recycled once, twice and even three or four times, and depending on the type of feed, the rabbits digestive process lasts from 18 to 30 hours in all, averaging 20 hours.
The aerial part of prickly pear cactus can be fed to rabbits. However, cottonseed cakes containing up to 700 ppm of free gossypol have been fed to growing rabbits with no problems Anatomy and Physiology The Chemical Basis of Life cкачать бесплатно без регистрации и смс
As an indication, the minimum and maximum thresholds are given in table 24 for various minerals, some vitamins and essential amino acids. Modern hybrid varieties conventionally grown for human food can also be used for feeding rabbits. Content is generally evaluated on the basis of crude fibre, although this analytical technique is far from perfect. Brewers draff and citrus pulp are possible feed sources where the processing plants are not too far from the rabbitry. Digestibility of the nutrients has not usually been determined for the rabbit specifically.
The consumption of solid and liquid intake fluctuates over a 24-hour period, as shown in figure 3. Where too much is supplied performance may drop, to the breeders surprise, and the risk is particularly high if he or she uses supplements that are added to the feed or drinking-water скачать Anatomy and Physiology The Chemical Basis of Life txt
The energy needed for organic synthesizing is usually supplied by carbohydrates and to a lesser extent by fats. The feeding habits of wild rabbits are even more nocturnal than those of domesticated rabbits. Table 19 impact of ambient temperature on intake and excretion ratios in adult rabbits feeding rabbits forage plus supplementary concentrate feed raises problems when the forage is not very palatable. In new caledonia, a local hyacinth called water lily is also a traditional feed. The hard pellets are expelled, but the soft pellets are recovered by the rabbit directly upon being expelled from the anus.
Banana peels can also be used to replace up to 35 percent of the concentrate for growing rabbits Anatomy and Physiology The Chemical Basis of Life бесплатно в epub
If this is accompanied by a higher digestible proteindigestible energy ratio, rabbits will suffer energy deficit and protein surplus at the same time, favouring the excessive production of proteolytic digestive flora which produces ammonia and leads to increased digestive problems (figure 5, curve a). By the end of the morning there are large numbers of these pellets inside the stomach, where they may comprise three quarters of the total contents. Amaranthus is routinely fed to rabbits at the bunda agricultural college in lilongwe, malawi. Trials in the united states used up to 40 percent poplar leaves in the diet. The dried stems of comprising 30 percent of the diet of growing rabbits, sun-dried water-lettuce meal was used in nigeria to produce growth rates equal to those of the control Anatomy and Physiology The Chemical Basis of Life без СМС в формате pdf
Taking as a reference animal an adult fed ad lib (140 to 150 g of dry matter per day, for example, for a 4 kg new zealand white) at four weeks a young rabbit eats a quarter of the amount an adult eats but its live weight is only 14 percent of the adults. However, fast-growing animals respond favourably to the addition of 1 to 2 ppm of vitamins b , and 30 to 60 ppm of nicotinic acid (vitamin pp) in the diet. In an early trial in mauritius, coarsely chopped sugar cane was successfully used to re place one half the balanced concentrate feed ration with no consequent drop in performance. As the contents enter the small intestine they are diluted by the flow of bile, the first intestinal secretions and finally the pancreatic juice скачать Anatomy and Physiology The Chemical Basis of Life в формате fb2 без регистрации
However, even at sodium contents exceeding 2 to 4 g (6 g of rashid salt), no mortality was reported from this eight-week trial, and the rabbits still grew at a rate of 23 gday77 percent compared with the control. One feeding rack is enough for six to ten rabbits, but at least two are needed as a safety measure in case the pellet flow should get blocked. Cortisone injections of animals without adrenals causes the resumption of normal behaviour. The plant grows so quickly, however, that the tendency is to use it as hay, unless planting can be staggered for a continuing crop. Its attraction is its high protein content (28 percent) and the fact that it can be grown during the dry season.
Some research indicates that rabbits need a certain minimum of fibre for regular digestion 9 to 10 percent of indigestible crude fibre