Amitraz is a potent miticide for veterinary fields for the control of susceptible ticks, fleas and lice including organophosphorus and synthetic pyrethroid resistant strains on cattle and mange on pigs.
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Feeding a good male and female male and female goat milk goats has been excessively licked before mating, prolonged lactation, nutrient consumption is very large, and severely stray. According to experiments, the average milk production of each female dairy goat is about 15 times of its body weight during the lactation period, and an important 18% to 33%% reduction in the body during the milk production period. Because the rams do not have to breed for a long period of time, the rearing is extensive and the lyrical condition is not good. In general, a good lyrical dairy goat has early estrus, high ovulation rate, and high reproductive rate; while thin sheep have late estrus, low ovulation, and low reproductive rates. The ram with a good lyrical sensation has a strong libido, strong breeding ability, good sperm quality, high density, and strong vitality; Therefore, it is necessary to improve the nutritional conditions of males and females before mating and implement short-term excellent feeding. From 1 month to 2 months before the start of breeding, quality forages and feeds for male and female breeding goats should be started, and carefully fed, supplemented with protein-rich feeds for rams and lean ewes. Because the rams produce 1 ml of semen each time, they need about 70-80 grams of protein.
Green fodder is rich in Vitamins And Minerals, can increase the ram's sperm motility, promote estrus in goat milk, and have a large number of ovulation. Usually crude goat milk ratio of 1:8 to 1:10 is appropriate, in the short-term superior feeding to add some fine material. Each male and female feeds a daily supplement of 0.5 kg to 1 kg; forage feed, according to the dried state of the feed, is approximately 3% to 4% of the body weight. If feeding green feed and silage, dry forage grass is used. 4x to 5x calculation (0.5kg hay=2.5kg fresh grass).
Doing a good job of selecting breeding males and females with high reproductive performance and high performance is an important aspect of improving reproduction rate and production performance.
1. Improve the proportion of ewes in the age group. The proportion of fertile ewes in the flock is an important way to increase the reproduction rate. Generally lambs can be mated 15 to 18 months after birth, weighing 30 kg to 40 kg. But in fact, the young ewes of the year must be bred. In this way, the selection and retention of the ewe in the current year is particularly important. If this is neglected, then tying the young female sheep with light weight and poor health will not only affect the growth and development of the ewe, but also affect the growth of the ewe. The quality of a generation of sheep.
2. Choose to leave the offspring of multiple lambs. The lambing rate of ewes is affected by genetic factors, and the proportion of twin lambs produced by the twin lambs is relatively large. Therefore, the lambs whose lambs produce more lambs should be kept as sheep.
3. Elimination of poor quality sheep. The entire flock will retain 3 to 5 year olds and eliminate over 7 years old sheep. The ewes should not be pregnant in the first year of pregnancy to find out the reasons for the solution; if the second year of infertility should be eliminated. At the same time, the proportion of ewes who have died in the first year of birth will be large in the following year and should also be eliminated.
The timing of the mating rate is highly related to the timing of mating. If you can grasp the timing of mating, you can only breed once in one estrus period. Mother goats are estrus once every 20 days or so. The duration of each estrus is 20 hours to 28 hours, and the ovulation period is usually 30 hours to 40 hours after the estrus starts. After the mature egg is excreted, the survival time in the fallopian tube is 4 hours to 8 hours. The most active time for male rams to walk in the ewe’s reproductive tract is generally about 24 hours, which is the best time for sperm and egg combination. Therefore, it is necessary to breed within a few hours before ovulation, that is, the most suitable breeding time is in the middle of estrus. Practice has shown that the ewes are of different ages and their breeding time is different. The duration of estrus in elder ewes is short. After estrus, it is necessary to seize the time and breed. Youth ewes have a long estrus time, and breeding time can be slightly delayed. Middle-aged ewes have moderate estrus time and breeding time is between the two. As the saying goes: "The old match is early, the match is late, and the old man is not in the middle." In addition, multiple eligibility in the ewe's estrus can also improve the conception rate.
Several issues to pay attention to during mating
1. Feed good rams. In the early stage of short-term excellent feeding, the breeding ram has returned to the kind of body condition. However, when mating, the ram's mating task is very heavy, so we must strengthen the breeding of rams. To add more protein feed to the feed, as well as high-quality green hay and juicy feed, you can increase the amount of carrots fed, feeding 2 to 3 eggs a day. The ram that does not thrive on sexual desire can take traditional Chinese medicine for treatment, 15 grams of ground dragon, 15 grams of kinky buds, and once studied and mixed at the end of mixing, it can be fed once.
2. The rest of the rams after breeding. Each time the ram is mated, it must be rested. Usually at least 2 hours to 3 hours of rest, and then the second breeding, should not be continuous in the day of breeding. If there are not enough rams, they need to be served several times a day. They can be arranged twice in the morning and once in the afternoon or two times in the afternoon.
3. Promote artificial insemination. The amount of ejaculation of a ram is about 1 ml to 2 ml. If artificial insemination is used, it is diluted 2 to 3 times and used by 10 to 30 ewes.
4. Strengthen the management of male and female ewes. On the one hand, it is necessary to strengthen the movement of male and female rams, increase light, and keep the laps clean and hygienic. On the other hand, milk ewes are used to reduce the number of milkings per day or to milk the next day in order to stimulate estrus in ewes.
5. Embrace the ewe. In the 15th day before the ewe mating, the test sheep is started to be sent to the side of the ewe; the flock can be fed once a day or 2 times in the morning and in the evening, and the estrus can be found in time for breeding.
In addition, for repeated infertile ewes, progesterone can be injected to the ewes for 2 to 6 consecutive days, each time 10 ml to 12 ml, followed by injection of pregnant horse serum gonadotropin 800 to 100010 within 1 to 2 days. 6. Herbal herb motherwort can also be used 20 grams of water amount of Jianzhi, mixed with buckwheat noodles or bran 20 grams.
For external use only.
Cattle : 1000 ml. Intraz-125 EC per 500 litres of water.
: Cattle ticks (Boophilus microplus). Treat at intervals of 19-21 days.
: New Zealand Cattle ticks (Haemaphysalis longicornis).Treat at intervals of 7-21 days.
: Paralysis ticks (Ixodes holocyclus). Treat at intervals of 7-10 days.
Pigs : 1000 ml. Intraz-125 EC per 250 litres of water.
: Mange (Sarcoptes scabiei var suis.)
Critical Comments:
Cattle : Spray cattle with a minimum of 10 litres for hand sprays and 4 litres for recirculating spays.
Pigs : Remove feed and bedding from pens. Cover drinking bowls and clean out pen. Spray pigs with minimum of 2 ltr. spray wash, especially inside ears and legs, under jowls and areas covered by scabs. Replace discarded bedding with clean material. Repeat treatment after 7-10 days. Two treatments at 7-10 days are recommended for sows and gilts before entering farrowing pens, for piglets at weaning, and for pigs newly bought into the piggery. Boars should be treated every 3 months.
The estrus of dairy goats has seasonality and regularity, generally from September to October of that year to the early spring of the following year. To improve the breeding rate of dairy goats, the following points should be made.