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Breeding method for improving reproductive performance of Angus bulls

A reproductive performance and bull technology, applied in the field of poultry and livestock breeding, can solve the problems of changing soil nutrient structure, nutrient imbalance, zinc waste, etc., and achieve the effect of promoting absorption and transformation, promoting absorption and digestion, and enhancing permeability

Inactive Publication Date: 2017-05-24
广西山水牛畜牧业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Nowadays, the zinc needed by bulls mainly comes from plant-based feed. Green feed has high zinc content, but it is easily affected by soil, conditioning period, fertilization, climate, etc.; See, most feeds cannot meet the zinc demand of bulls, so most farmers meet the zinc demand by adding zinc in the diet, but due to the correlation between trace elements, it will cause nutritional imbalance. Moreover, along with the problem of feed utilization rate, zinc will be wasted, and the soil nutrient structure will be changed when excreted in the form of feces. Although zinc is one of the essential elements for the growth and development of animals and plants, no matter whether it is excessive or too small, it will cause cause physiological disorder

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  • Breeding method for improving reproductive performance of Angus bulls
  • Breeding method for improving reproductive performance of Angus bulls

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Embodiment 1

[0024] This embodiment provides a feeding method for improving the reproductive performance of Angus bulls. Under normal feeding and management conditions, zinc supplementation is added for feeding, specifically: giving zinc-containing preparations to calves for 5-7 consecutive days after weaning 7 days, The daily dose (calculated as zinc) is 37.6mg / kg; the bulls are given zinc-containing preparations for 3-5 consecutive days 10 days before mating, and the daily dose (calculated as zinc) is 29mg / kg; the number of daily administrations: 3 times, Dosing can be done after an interval of 4-5 hours after each administration; administration method: aerosol administration and digestive tract gavage; after each administration is completed every day, massage the belly of the cow with an electric triangular massager, The massage time is 1.5h; after each drug administration procedure is completed, acupuncture is given to the bull once;

[0025] in,

[0026] The zinc-containing preparati...

Embodiment 2

[0029] This embodiment provides a feeding method for improving the reproductive performance of Angus bulls. Under normal feeding and management conditions, zinc supplementation is added for feeding, specifically: giving zinc-containing preparations to calves for 5-7 consecutive days after weaning 7 days, The daily dose (calculated as zinc) is 35 mg / kg; the bulls are given zinc-containing preparations for 3-5 consecutive days 10 days before mating, and the daily dose (calculated as zinc) is 25 mg / kg; the number of daily administration: 2 times, every Dosing can be done after an interval of 4-5 hours after the first dosing; dosing method: aerosol dosing and digestive tract gavage; after each dosing every day, use an electric triangular massager to massage the cow’s belly, massage The time is 1.3h; after each drug administration procedure is completed, acupuncture is performed on the bull once;

[0030] in,

[0031] The zinc-containing preparation used is an aqueous solution wit...

Embodiment 3

[0034] This embodiment provides a feeding method for improving the reproductive performance of Angus bulls. Under normal feeding and management conditions, zinc supplementation is added for feeding, specifically: giving zinc-containing preparations to calves for 5-7 consecutive days after weaning 7 days, The daily dose (calculated as zinc) is 40 mg / kg; the bulls are given zinc-containing preparations for 3-5 consecutive days 10 days before mating, and the daily dose (calculated as zinc) is 33 mg / kg; the number of daily administration: 2 times, every Dosing can be done after an interval of 4-5 hours after the first dosing; dosing method: aerosol dosing and digestive tract gavage; after each dosing every day, use an electric triangular massager to massage the cow’s belly, massage The time is 1 hour; after each dosing procedure is completed, the bull is given acupuncture once;

[0035] in,

[0036] The zinc-containing preparation used is an aqueous solution with a zinc content o...

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Abstract

The invention relates to the technical field of livestock breeding, in particular to a breeding method of improving reproductive performance of Angus bulls. The breeding method includes: on the basis of daily breeding management, feeding calves 7 days after weaning with a zinc-contained preparation, and well regulating secretion of gonad activity and sex hormone of the bulls. The zinc-contained preparation is fed after weaning and before mating, modes of massage, acupuncture and the like are adopted, and dosage, drug delivery way, number of times, preparation content and daily feed nutrients are controlled, so that zinc element is sufficiently absorbed by each part of bodies, absorption and digestion are promoted, and metabolism level of multiple hormones in the bodies of male breasts is regulated; meanwhile, absorption conversion of the bodies on the feed is promoted, content of adverse hormones in the bodies is reduced, sperm density and sperm activity are improved, rate of sperm deformation is reduced, and growing development of testis is promoted; liver steroid metabolism is further improved, and sex steroid receptor level is regulated.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a feeding method for improving the reproductive performance of Angus bulls. Background technique [0002] Zinc is one of the essential trace elements for animals. It has a wide range of physiological and biochemical functions in animals, so it is called "life element". As early as 1921, it was discovered that zinc is related to the reproductive function of male animals. Nowadays, a large number of studies have also proved that insufficient zinc content in feed will affect the growth and reproductive performance of bulls, mainly manifested in the cessation of development of sexual organs, atrophy of seminiferous epithelium, decline of semen bottles, decreased release of pituitary gonadotropes and sex hormones, and severe deficiency. Spermatogenesis is completely stopped; in addition, zinc is also related to the activities of insulin, glucagon, prostaglandins, etc. The de...

Claims

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Application Information

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IPC IPC(8): A01K67/02A23K20/163A23K20/105A23K20/20A23K50/10
CPCA01K67/02
Inventor 杨远澄周贵金谭春萍杨远广陆海龙欧庆卫李政
Owner 广西山水牛畜牧业有限责任公司
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