Anti-heat stress feed additive for beef cattle in fattening period under southern damp and hot environment and application of anti-heat stress feed additive

Abstract

The invention relates to an anti-heat stress feed additive for beef cattle in a fattening period under a southern damp and hot environment. The anti-heat stress feed additive comprises 8-10% of special yeast for rumination, 35-45% of rumen bypass fat powder, 3-5% of rumen bypass gamma-aminobutyric acid, 4-6% of coating VC, 20-25% of magnesium oxide, 10-18% of potassium chloride and 2.5-4% of sodium saccharin. The feed additive is added according to 1.5% of the feed amount of the total mixed ration (TMR) of cattle every day. The additive is used for feeding the cattle in two times after being mixed and stirred uniformly with an original TMR for a cattle farm every day. A yeast product regulates cattle rumen fermentation and promotes the digestion of feed through yeast products; the gamma-aminobutyric acid, VC, magnesium oxide and potassium chloride all have the effects of regulating body temperature, resisting stress and increasing immunity; the fat powder can promote beef cattle to deposit quickly during the fattening period; and the joint supplement of potassium and magnesium has better anti-heat stress effect than a single addition of potassium chloride. The feed additive can significantly prevent the occurrence of heat stress in fattening beef cattle in the high temperature season in summer, increase the daily gain of cattle, the final weight and reduce the feed-to-weight ratio, and achieve good feeding effects.

Description

technical field

[0001] The invention belongs to the technical field of feed additives for livestock and poultry, and in particular relates to the research on a heat stress-resistant feed for beef cattle during the fattening period under the conditions of the southern hot and humid region, and also relates to the application of the feed additive. Background technique

[0002] With global warming, heat stress has become an important factor that endangers beef cattle production. Beef cattle have the biological characteristics of being resistant to cold and heat, and the suitable living temperature is 10-15°C. When the ambient temperature is high, various functions of beef cattle will produce heat stress reactions, and the production performance will be greatly affected. As usual, animal productivity will decrease, Reduced reproductive rate, reduced product quality, weakened immunity and other issues. This has become one of the main factors restricting the development of animal...

Examples

Embodiment 1

[0038] This example prepares beef cattle anti-heat stress feed additive 1 for comparison, which is prepared from the following raw materials in weight percentage: ruminant special yeast 17-19%; rumen-passed fat powder 81-83%.

[0039] The specific preparation and usage methods of this feed additive are as follows:

[0040] During preparation, the raw materials of additives are taken in proportion and mixed evenly.

[0041] On the premise that each raw material of the additive is uniformly mixed, the mixed additive raw material is mixed with Niuchangyuan TMR feed and stirred evenly. The specific additive dosage of the feed additive is added according to 1.5% of the total daily intake of TMR feed by cattle. The raw materials of the additives can be directly used in the original diet of the farm without changing the original feed raw materials.

Embodiment 2

[0043] This embodiment prepares beef cattle anti-heat stress feed additive 2 for comparison, which is formulated from the following raw materials in weight percentage:

[0044] Ruminant special yeast 25%, rumen-passed fat powder 10%, rumen-passed γ-aminobutyric acid 15%, coated V C 10%, magnesium oxide 30%, potassium chloride 8%, sodium saccharin 2%.

[0045] The specific preparation and usage methods of this feed additive are as follows:

[0046] During preparation, the raw materials of additives are taken in proportion and mixed evenly.

[0047] On the premise that each raw material of the additive is uniformly mixed, the mixed additive raw material is mixed with Niuchangyuan TMR feed and stirred evenly. The specific additive dosage of the feed additive is added according to 1.5% of the total daily intake of TMR feed by cattle. The raw materials of the additives can be directly used in the original diet of the farm without changing the original feed raw materials.

Embodiment 3

[0049] This embodiment prepares the anti-heat stress feed additive for beef cattle of the present invention, which is prepared from the following raw materials in weight percentage: 8% special ruminant yeast, 40% rumen-passed fat powder, 4% rumen-passed γ-aminobutyric acid, coated V C 5%, magnesium oxide 24%, potassium chloride 16%, sodium saccharin 3%.

[0050] The specific preparation and usage methods of this feed additive are as follows:

[0051] During preparation, the raw materials of additives are taken in proportion and mixed evenly.

[0052]On the premise that each raw material of the additive is uniformly mixed, the mixed additive raw material is mixed with Niuchangyuan TMR feed and stirred evenly. The specific additive dosage of the feed additive is added according to 1.5% of the total daily intake of TMR feed by cattle. The raw materials of the additives can be directly used in the original diet of the farm without changing the original feed raw materials.

technical field

[0001] The invention belongs to the technical field of feed additives for livestock and poultry, and in particular relates to the research on a heat stress-resistant feed for beef cattle during the fattening period under the conditions of the southern hot and humid region, and also relates to the application of the feed additive. Background technique

[0002] With global warming, heat stress has become an important factor that endangers beef cattle production. Beef cattle have the biological characteristics of being resistant to cold and heat, and the suitable living temperature is 10-15°C. When the ambient temperature is high, various functions of beef cattle will produce heat stress reactions, and the production performance will be greatly affected. As usual, animal productivity will decrease, Reduced reproductive rate, reduced product quality, weakened immunity and other issues. This has become one of the main factors restricting the development of animal...

Examples

Embodiment 1

[0038] This example prepares beef cattle anti-heat stress feed additive 1 for comparison, which is prepared from the following raw materials in weight percentage: ruminant special yeast 17-19%; rumen-passed fat powder 81-83%.

[0039] The specific preparation and usage methods of this feed additive are as follows:

[0040] During preparation, the raw materials of additives are taken in proportion and mixed evenly.

[0041] On the premise that each raw material of the additive is uniformly mixed, the mixed additive raw material is mixed with Niuchangyuan TMR feed and stirred evenly. The specific additive dosage of the feed additive is added according to 1.5% of the total daily intake of TMR feed by cattle. The raw materials of the additives can be directly used in the original diet of the farm without changing the original feed raw materials.

Embodiment 2

[0043] This embodiment prepares beef cattle anti-heat stress feed additive 2 for comparison, which is formulated from the following raw materials in weight percentage:

[0044] Ruminant special yeast 25%, rumen-passed fat powder 10%, rumen-passed γ-aminobutyric acid 15%, coated V C 10%, magnesium oxide 30%, potassium chloride 8%, sodium saccharin 2%.

[0045] The specific preparation and usage methods of this feed additive are as follows:

[0046] During preparation, the raw materials of additives are taken in proportion and mixed evenly.

[0047] On the premise that each raw material of the additive is uniformly mixed, the mixed additive raw material is mixed with Niuchangyuan TMR feed and stirred evenly. The specific additive dosage of the feed additive is added according to 1.5% of the total daily intake of TMR feed by cattle. The raw materials of the additives can be directly used in the original diet of the farm without changing the original feed raw materials.

Embodiment 3

[0049] This embodiment prepares the anti-heat stress feed additive for beef cattle of the present invention, which is prepared from the following raw materials in weight percentage: 8% special ruminant yeast, 40% rumen-passed fat powder, 4% rumen-passed γ-aminobutyric acid, coated V C 5%, magnesium oxide 24%, potassium chloride 16%, sodium saccharin 3%.

[0050] The specific preparation and usage methods of this feed additive are as follows:

[0051] During preparation, the raw materials of additives are taken in proportion and mixed evenly.

[0052]On the premise that each raw material of the additive is uniformly mixed, the mixed additive raw material is mixed with Niuchangyuan TMR feed and stirred evenly. The specific additive dosage of the feed additive is added according to 1.5% of the total daily intake of TMR feed by cattle. The raw materials of the additives can be directly used in the original diet of the farm without changing the original feed raw materials.

Images