Potentiation of Chlortetracycline in Laying Chickens

Robblee, A. R.; Clandinin, D. R.

doi:10.3382/ps.0430462

Poultry Science

1964

DOI: 10.3382/ps.0430462

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Potentiation of Chlortetracycline in Laying Chickens

A. R. Robblee

D. R. Clandinin

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Cited by 6 publications

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“…These methods involve the use of: (1) terephthalic acid (Price et al, 1959;Yates and Stephenson, 1959;Slinger et al, 1962;Harms et al, 1964); (2) low dietary calcium levels for a short period of time (Price et al, 1959;Patterson et al, 1960;Harms et al, 1964) such as calcium sulfate (Donovan et al, 1962;Robblee and Clandinin, 1964); and (4) sodium sulfate (Pensack, 1963;Nelson et al, 1964;Gale and Baughn, 1965). These methods involve the use of: (1) terephthalic acid (Price et al, 1959;Yates and Stephenson, 1959;Slinger et al, 1962;Harms et al, 1964); (2) low dietary calcium levels for a short period of time (Price et al, 1959;Patterson et al, 1960;Harms et al, 1964) such as calcium sulfate (Donovan et al, 1962;Robblee and Clandinin, 1964); and (4) sodium sulfate (Pensack, 1963;Nelson et al, 1964;Gale and Baughn, 1965).…”

mentioning

confidence: 99%

Comparison of EDTA, Terephthalic Acid, Sodium Sulfate and Acetyl-Salicylic Acid as Antibiotic Potentiating Agents in Broiler Chicks

1967

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mentioning

confidence: 99%

Comparison of EDTA, Terephthalic Acid, Sodium Sulfate and Acetyl-Salicylic Acid as Antibiotic Potentiating Agents in Broiler Chicks

1967

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Poultry Nutrition in 1964

Jensen

1965

World's Poultry Science Journal

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N REVIEWING poultry nutrition research published in 1964, one I cannot help but consider the question: Do we ever satisfactorily solve the problems in any area of nutrition? For example, calcium and phosphorus were recognized as critical nutrients in poultry rations from the very beginnings of organized poultry research. Yet, during 1964, over 10% of all papers reviewed dealt with some aspect of calcium or phosphorus nutrition.Undoubtebly, much of the work was prompted by the fact that we still have practical field problems with egg shell quality and occasional outbreaks of "cage fatigue" and rickets in commercial flocks.To indicate that general solution to problems in an area of poultry nutrition is eventually reached, very little research work in 1964 involved the B-complex vitamins. Obviously, sufficient information is now available on metabolism and requirement of these nutrients so that field or laboratory problems are not being encountered. Furthermore, the biochemical function of B-complex vitamins has been generally elucidated.In addition to work on calcium and phosphorus, many papers dealing with other minerals were published. In fact, more than 25% of all papers were on minerals. Protein, amino acids, and energy nutrition continued to receive attention. Research on cholesterol and other lipids in relation to poultry, appear to be receiving increased emphasis.

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Factors Influencing Egg Shell Quality—A Review

Wolford

Tanaka

1970

World's Poultry Science Journal

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Japan ACTORS influencing egg shell quality have been investigated by F numerous researchers. This article is presented in an attempt to share a comprehensive, but not all-inclusive, review of factors, except genetic, influencing egg shell quality. The review was done in conjunction with an investigation concerning a cracked egg problem in caged turkey breeder hens (1, 2).A review of the various techniques and devices which have been used to evaluate shell quality has not been included because of recent published reviews (3,4,). However, despite the conclusion (4) that the reported methods have not measured true shell strength, the published information on factors influencing egg shell quality is of significant value to the practical researcher because egg shell thickness (5-lo), egg shell weight (11) and egg specific gravity (12, 13) have been correlated with crack incidence. NUTRITIONCalcium & Phosphorus: Egg shell quality of chickens whether measured by specific gravity, shell thickness, shell smoothness, breaking strength, percentage of cracks or shell appearance has been reported to be influenced by dietary calcium (14-60). Low dietary calcium levels, less than 2-0 per cent, significantly decreased egg shell quality in chickens increased egg shell thickness and egg specific gravity; although no effect has been observed in chickens (61-70) and in turkeys (2, 71, 72).The dietary calcium source (15, 73-83) and method (62, 84) of feeding calcium to chickens has been investigated. Feeding oyster .Completed while on sabbatical leave at Gifu University. Kakamigahara, Gifu, Japan. 163improve egg shell quality. Although, zinc proteinate has been shown to increase the percentage of shell (128). Dietary manganese levels below 20 parts per million decreased chicken egg shell quality (21, 109, 129, 130); but levels in excess of 71 parts per million have not influenced chicken (109) or turkey (131) egg shell quality.Other chemical elements such as ammonium chloride (30,121, 132-134) and hydrochloric acid (1 34) have decreased the thickness and specific gravity of chicken eggs when incorporated into the diet at the 1.5 to 2.0 per cent level. Sodium bicarbonate, at the 1.0 per cent level, in the diet of chickens increased the egg specific gravity and egg shell thickness (135,136 ); although others have reported that 0.5 per cent (20, 137), 1.0 per cent (20,42, 132) and 2.0 per cent (132) was ineffective. A 0.25 per cent sodium bicarbonate level in the drinking water of laying chickens increased the shell thickness when fed a low sodium chloride diet; but no effect was observed when the diet contained 0.25 or 1.0 per cent sodium chloride (138). Protein & Energy:Neither the dietary protein level (58, 120, 139-146), 15 to 21 per cent, protein source (42, 120, 121, 147-150), fish, animal or vegetable products nor amino acid supplementation (65, 141, 151), methionine or lysine, has been reported to influence the egg shell quality of chickens.Energy source (31, 121, 122,(152)(153)(154), corn, barley, wheat, oats, animal fat or veg...

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Potentiation of Chlortetracycline in Laying Chickens

Cited by 6 publications

References 10 publications

Comparison of EDTA, Terephthalic Acid, Sodium Sulfate and Acetyl-Salicylic Acid as Antibiotic Potentiating Agents in Broiler Chicks

Comparison of EDTA, Terephthalic Acid, Sodium Sulfate and Acetyl-Salicylic Acid as Antibiotic Potentiating Agents in Broiler Chicks

Poultry Nutrition in 1964

Factors Influencing Egg Shell Quality—A Review

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