Regulation of Agricultural Chemicals, Growth Promotants, and Feed Additives

2019 ◽  
pp. 58-63
Author(s):  
O. D. Butler
Keyword(s):  
Feed Additives ◽  
Agricultural Chemicals ◽  
Growth Promotants

EFFECTS OF FEEDING AVOPARCIN IN COMBINATION WITH PROGESTERONE-ESTRADIOL IMPLANTS ON GROWING AND FINISHING STEERS

1983 ◽  
Vol 63 (4) ◽  
pp. 885-891 ◽  
Author(s):  
D. A. MURRAY ◽  
T. D. BURGESS ◽  
D. N. MOWAT
Keyword(s):  
Weight Gain ◽  
Key Words ◽  
Feed Efficiency ◽  
Feed Additives ◽  
Corn Silage ◽  
Carcass Weight ◽  
Key Words Growth ◽  
Finishing Steers ◽  
Performance Response ◽  
Growth Promotants

Two, experiments were conducted with growing and finishing steers to determine the performance response to feeding avoparcin with or without progesterone-estradiol (Synovex-S) implants. In exp. 1, 96 crossbred yearling steers were fed diets containing 40% hay crop silage (DM basis) for 168 days. Avoparcin increased (P < 0.05) weight gains (16%) and feed efficiency (16%). Initial Synovex-S implants increased (P < 0.05) weight gain (14%) and feed efficiency (11%). Reimplanting at 112 days tended to further improve (P > 0.05) rate of gain and feed efficiency over initial implanting. In exp. 2, 80 Hereford yearling steers were fed diets containing only 19% corn silage (DM basis) for 98 days. Avoparcin had no effect on weight gain but improved (P > 0.05) feed efficiency (11%). Synovex improved (P < 0.05) weight gain (17%) and feed efficiency (11%). In both experiments treatments produced no effects on carcass measurements except for an increase in warm carcass weight. Also, in both experiments the effects of avoparcin and Synovex on feed efficiency were fully additive. Key words: Growth promotants, implants, feed additives, steers

Antioxidative properties of pure compounds and phytogenic feed additives in a chemical (ORAC) and a cell-based assay (yeast)

Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
K Teichmann ◽  
D Wendner ◽  
D Bachinger ◽  
S Hessenberger ◽  
G Schatzmayr
Keyword(s):  
Feed Additives ◽  
Antioxidative Properties ◽  
Pure Compounds ◽  
A Cell

HISTOLOGICAL CHANGES IN THE INTESTINES OF POULTRY DURING FODDER INTOXICATION

2020 ◽  
Author(s):  
E.P. Dolgov ◽  
◽  
A.A. Abramov ◽  
E.V. Kuzminova ◽  
E.V. Rogaleva ◽  
...  
Keyword(s):  
Body Weight ◽  
Histological Examination ◽  
Aflatoxin B1 ◽  
Structural Changes ◽  
Clinical Manifestations ◽  
Feed Additives ◽  
The Body ◽  
Histological Changes ◽  
Beet Pulp

The article presents the data on the study of the influence of mycotoxins combination (T-2 toxin at the concentration of 0.095 mg/kg and aflatoxin B1 in the concentration of 0.019 mg/kg) on the body of quails and the results of pharmacocorrection of toxicosis with a complex consisting of beet pulp and lecithin. Structural changes in the intestines of quais at fodder mycotoxicosis are described. The use of antitoxic feed additives in poultry led to a weakening of the action of xenobiotics, which was confirmed by an increase in the safety of poultry and increase in body weight of quails, a decrease in the clinical manifestations of intoxication, as well as in positive changes in the structure of the intestine of the poultry during histological examination.

The effects and mechanisms of acids on the health of piglets and weaners – a review

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Piotr Nowak ◽  
Anita Zaworska-Zakrzewska ◽  
Andrzej Frankiewicz ◽  
Małgorzata Kasprowicz-Potocka
Keyword(s):  
Digestive System ◽  
Buffer Capacity ◽  
Growth Parameters ◽  
Feed Additives ◽  
Feed Additive ◽  
Growth Promoters ◽  
Qualitative And Quantitative ◽  
Inorganic Acids ◽  
Low Activity ◽  
The Eu

AbstractThe rearing of piglets is the most difficult period in the pigs’ production because of their poorly developed digestive system and the low activity of digestive enzymes. Problems in nutrition and stress cause some disorders in the functioning of the digestive system leading to diarrhea and the mortality of piglets. Starting in 2006 in the EU, a total ban on antibiotics in their use as growth promoters was introduced. Since then, new and safe feed additives have been sought in order to replace antibiotics. Organic and inorganic acids as well as their salts were recognized as effective and safe additives. Due to their properties, they can improve feed palatability and digestibility, reduce the buffer capacity of feed, impact the development and functioning of the pig’s digestive system and improve the health and growth parameters. However, the effectiveness of acids is related to their qualitative and quantitative share in the feed additive. In this review, some strategies for using organic acids, their mixtures and also some new multi-component products will be discussed.

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