The Best fattening period for three kinds of Meat domestic Animals of Pig, cattle and Sheep

Fattening pig

The law of growth and development of pigs is that the growth is slower in the early stage, the weight gain is faster in the middle stage, and the fat deposition is faster in the later stage.

Fattening pig

In general, 20kg / 30kg is the peak of bone growth, 60kg / 70kg is the peak of muscle growth, and 90kg / 100kg is the peak period of fat accumulation. The weight gain was closely related to the changes of breed and nutrition level. The peak period of muscle growth of breed pigs was about 50 kg (3 ~ 4 months old). With the increase of age, the intensity of fat growth increased significantly after 70 ~ 80 kg (4 ~ 5 months old). And gradually exceeded the muscle growth intensity, and began to deposit a lot of fat in the body. The slaughtering benefit is the best when the body weight reaches 90 kg. It is most suitable for local precocious varieties to enter the hurdle when their body weight is about 75 kg. At this time, the meat quality is good and the slaughtering rate is also high; the binary or three-way hybrid pigs with local pigs as female parents and foreign lean pigs as male parents have the best slaughtering rate at the age of 7 ~ 8 months (90,100kg).

Beef cattle

The daily gain of beef cattle increases faster at first and then slows down with age. Generally speaking, bulls grow faster than their castrates, and castrates grow faster than cows of the same breed. There are also differences in weight gain among different feeding methods: under the condition of house feeding, the weight gain of bulls is faster than that of castrates and heifers, and the meat quality is good and the feed consumption is less. In free-range breeding, the weight gain and feed reward of bulls were relatively decreased, while the weight gain of calves and eunuchs was faster, and the fat was more fleshy, but the feed consumption was more. Compared with bulk feeding, the daily weight gain increased by 19.6%, the feed consumption decreased by 26.3%, and the weight gain cost decreased by 19.6%. The fattening beef cattle were fattened for 80 ~ 150 days by adopting matching feeding techniques during the prosperous growth period of 10 ~ 18 months old. When the body weight reached 450 ~ 500 kg, the benefit was the best. The fattening of old cattle can only restore their fatness in a short time, it is impossible to gain weight, and the benefit is relatively poor. The results showed that the muscle growth of calves was the fastest in the first 6-8 months after birth, and then the muscle growth slowed down and the feed utilization rate decreased with the increase of body weight and age. In the second half of growth, for every 100 kg increase in body weight, 18% more feed was consumed. 42% for every 100 kg increase at the age of 2, and 60% more for every 100 kg increase at the age of 3. Therefore, the economic benefit of crossbred cattle is the best when they are 1.5 and 2 years old.

Mutton sheep

The production of mutton sheep is mainly grazing and can also be fed in houses. Sheep grow rapidly from birth to 12 weeks. According to the determination, in the rapid growth period, the daily gain of sheep can reach 170 grams, and the continuous growth period of 12-30 weeks is the daily gain of 135 grams, and the cumulative growth is still on the rise. Most sheep gain the fastest weight at the age of 7 ~ 9 months. The weight gain of sheep and meat goats in 9 months is about 40 kg and 35 kg respectively. Therefore, we should pay attention to the early growth of mutton sheep.