Feed formula for pigs during lactation

Sows need a lot of nutrients to satisfy lactation during lactation. During the peak period of lactation, the lactation ability of sows was higher than that of feed intake and less than that of nutrients excluded from milk, and the body condition of sows decreased rapidly. Feeding lactating sows with high quality and high nutrient concentration feed is the best way to solve this contradiction.

Feed formula 1: lactation feed formula 1 in Table 4-3 avoids the use of large solvent feed such as alfalfa, bran, etc. In the formula design of lactation feed, the nutrition unknown factor is not very important. This formula uses high energy feed corn, high protein content feed fish meal and soybean meal as far as possible, so that the volume of formula feed can be reduced as much as possible and the nutrient concentration should be increased as much as possible. The formula also uses synthetic amino acids to further strengthen the first limiting amino acids and improve the utilization efficiency of feed protein. In order to ensure the quality of lactation, the trace components in the formula keep the amount of pregnancy feed unchanged. The formula feed is used to feed about 10-15 high-yielding sows, which can achieve ideal lactation and lactation effect.

Feed formula 2: the design quality is medium. The main characteristics are that the digestible energy content of the formula is not high enough, the proportion of large volume feed bran and wheat bran is large, and the volume of compound feed is too large. To a certain extent, it affects the effective intake of enuresis in sows. Although the contents of other major nutrients in this formula were similar to those in lactation feed formula 1, the effective intake was not significantly affected. Therefore, the formula is suitable for sows with about 10 piglets. The use of high-yielding sows may lead to greater weight loss during lactation and affect the reproductive performance of the next reproductive cycle.

Feed formula 3: the energy level is lower than that of lactation feed formula 2, the notes between energy and other nutrients are not balanced, and the protein content in formula feed is excessive. However, the formula fully reflects the characteristics of plant by-product feed and a typical example of formula formula feed for lactating sows. The formula is used for 8-10 sows, which is well fed and managed, lactation and lactation are also good. If the sow is weaned early, it will not seriously affect the physical condition of the sow.

Section I. Feed matching of growing and finishing pigs

During the production time, some feed formulations with better feeding effect were summarized. its nutrient content per kilogram is basically close to the feeding standard of lean growing and fattening pigs. @ # 227 farms and pig farmers can be applied selectively according to the local area and their own feed sources.

I. an example of a formula for the stage of 10 to 20 kg

Formula 1, corn 48.6%, wheat bran 15%, rice bran 15%, bean cake 15%, yeast 5.0%, calcium carbonate 0.8%, additive 0.2%, salt 0.4%. The digestible energy of the second formula is 12.93% megajoule / kg, crude protein 16.1%, lysine 0.75%, methionine + cystine 0.59%, calcium 0.59%, phosphorus 0.56%.

Formula 2, corn 48%, broken rice 10% rice bran 10%, wheat bran 10%, bean cake 10%, fish meal 8%, Qingke 2.5%, calcium carbonate 0.5%, calcium phosphate 0.5%, salt 0.5%. This formula can digest 13.10 megajoules / kg, crude protein 16.1%, lysine 0.80%, methionine + cystine 0.48%, calcium 0.80%, phosphorus 0.67%.

Formula 3, corn 53%, wheat bran 20%, Panax notoginseng bran 6.5%, bean cake 19.0%, shell powder 1.2%, salt 0.3%. The digestible energy of this formula is 12.52 MJ / kg, crude protein 15.5%, lysine 0.76%.

II. Examples of formulations for the stage of 20-60 kg

Formula 1, corn 59.3%, wheat bran 20%, Panax notoginseng bran 6.8%, bean cake 12.4%, shell powder 1.2% salt 0.3%. This formula can digest 12.52 MJ / kg, crude protein 15.9%, lysine 0.85%, methionine + cystine 0.55%, calcium 0.63%, phosphorus 0.64%.

Formula 2, corn 45%, wheat bran 35%, soybeans 6.6%, rapeseed cake 8.0%, fish meal 4%, stone meal 1%. Salt 0.4%. This formula can digest 12.18 megajoules / kg, crude protein 15.9%, lysine 0.85%, methionine + cystine 0.55%, calcium 0.63%, phosphorus 0.64%.

Formula 3, corn 37%, barley 34.5%, wheat bran 9%, rapeseed cake 8%, cotton seed cake 10%, shell powder 1.0%, salt 0.5%. The digestible energy of this formula is 12.56 MJ / kg, crude protein 14.4%, calcium 0.52%, phosphorus 0.44%.

III. Examples of formulations for the 60-90 kg stage

Formula 1, corn 38.0%, barley 31.5% wheat bran 10.0%, cottonseed cake 5.0%, bean cake 3.0%, fish meal 3.5%, bone meal 1%, salt 0.5%. The digestible energy of this formula is 12.73 MJ / kg, crude protein 13.3%, calcium 0.51%, phosphorus 0.41%.

Formula 2, corn 62.4%, wheat bran 20%, notoginseng bran 7.2%, bean cake 9.1%. Shell powder 1%, salt 0.3%. The digestible energy of this formula is 12.56 MJ / kg, crude protein 12.2%, lysine 0.54%.

Formula 3, corn 60.6%, rice bran 18%, wheat bran 10%, bean cake 10%, calcium carbonate 0.8%, salt 0.4%, vitamin additive 0.2%. The digestible energy of this formula is 13.86 MJ / kg, crude protein 14.7%, lysine 0.53%, methionine + cystine 0.42%, calcium 0.67%, phosphorus 0.48%.