Observations on New and Reused Litter for Growing Broilers

Jones, F. T.; Hagler, W. M.

doi:10.3382/ps.0620175

Cited by 14 publications

(9 citation statements)

References 12 publications

(31 reference statements)

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“…Incidence of gait scores 1 and 2 were higher in males reared on re-used litter than females (Figure 1). No difference in several performance traits (average bird weight, feed conversion, mortality or condemnations) were observed in previous experiments with re-used litter and alternative bedding materials (Jones and Hagler, 1983;Brake et al, 1993;Benabdeljelil and Ayachi, 1996); however, ammonia build up and eventual litter caking may reduce walking ability and lower welfare for the broilers.…”

Section: Resultsmentioning

confidence: 89%

Locomotor Problems in Broilers Reared on New and Re-Used Litter

Paz

Garcia

Bernardi

et al. 2013

Italian Journal of Animal Science

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Two field trials were conducted to assess locomotor problems in broilers. Males and females broilers were used from two commercial strains reared on two different litter materials, new and re-used. In the first experiment (E1) rice husks and wood shavings were used as new litter, and in the second experiment (E2) the same litter was re-used. A batch of one-day-old chicks (2968) was reared randomly distributed in experimental pens, in a 2¥2¥2 factorial scheme (two genetic strains, two sexes and two litter materials). The same fodder and water were available to all birds ad libitum. Broilers locomotion problems were evaluated using the characteristics of gait score, incidence of valgus and varus, foot-pad lesions, degeneration, femoral, tibial dyschondroplasia, spondylolisthesis and breast calluses. The number of birds with high gait score was less than 30% in the two experiments. Males presented higher gait score (GS) (28.46% GS 1 and 2 compared to females, 20.98%); greater incidence of angular deformities (26.62% with valgus compared to 14.71% of the female); and femoral degenerative joint lesions (70.83% in average, compared to 55.16% of the female), and the correlation between these traits varied from 0.18 to 0.87 (P<0.05). There was an increase of foot-pad lesions in re-used litter leading to poor welfare. The use of rice husks in deep litter for broiler production might be a viable alternative of wood shavings.

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Section: Resultsmentioning

confidence: 89%

Locomotor Problems in Broilers Reared on New and Re-Used Litter

Paz

Garcia

Bernardi

et al. 2013

Italian Journal of Animal Science

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“…A mudança do pH na cama à medida que ela é utilizada pode afetar a viabilidade do fungo, como ressaltado por Jones & Hagler (1982). Neste sentido, Groden & Lockwood (1991) observaram, especificamente para o fungo B. bassiana, que o efeito fungistático aumenta exponencialmente com a elevação do pH.…”

Section: Uel 50unclassified

Efeito da temperatura e cama do aviário na virulência de Beauveria bassiana (Bals.) Vuill. e Metarhizium anisopliae (Metsch.) para o controle do cascudinho (Alphitobius diaperinus) (Panzer) (Coleoptera: Tenebrionidae)

Alexandre¹,

Alves²,

Neves³

et al. 2006

Neotrop. Entomol.

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Bolsista de Produtividade em Pesquisa/CNPqNeotropical Entomology 35(1): 075-082 (2006) Effect of Temperature and Poultry Litter in Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch) Virulence against the Lesser Mealworm Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae)ABSTRACT -This study was carried out to evaluate the influence of temperature and poultry litter on germination vegetative growth virulence and conidial production of Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) isolates on larvae and adults of the lesser mealworm (Alphitobius diaperinus) (Panzer). The vegetative growth and conidial production were evaluated on culture media. Virulence was studied submerging larvae and adults in a conidial suspension (1 x 10 8 conidia/ml). All the experiments were carried out in growth chamber (26ºC and 32ºC and 14h photophase). Fungus-killed insects were daily collected and used for microscopic conidial counts. The poultry litter effect was evaluated by submerging the insects in a fungal suspension (10 8 conidia/ml) and then transferring them to cups containing poultry litter (new and used). B. bassiana isolates were more sensitive than M. anisopliae to high temperature because conidia viability, vegetative growth and virulence were negatively affected (P < 0,05). The conidial production was higher to B. bassiana in 26ºC (7 to 11 x 10 8 conidia/larval cadaver and 8 x 10 8 conidia/adult cadaver) (P < 0,05). Larval stage was about 10 times more sensitive to M. anisopliae at 26ºC than adults stage. Regarding B. bassiana, differences on sensitivity between larval stages and adults were not observed at this temperature. However, at 32ºC, larval stage was more sensitive for CB116 and UEL50 isolates. Mortality was higher when larvae and adults (15.7 and 66.7% respectively) were treated by B. bassiana and maintained on new poultry litter at 26ºC) (P < 0,05).KEY WORDS: Entomopathogenic fungus, microbial control, animal production RESUMO -O estudo avaliou a influência da temperatura e de cama nova e usada na germinação, crescimento vegetativo, virulência e produção de conídios de isolados de Beauveria bassiana (Bals.) Vuill. e Metarhizium anisopliae (Metsch.) sobre larvas e adultos do cascudinho Alphitobius diaperinus (Panzer). O crescimento vegetativo e a produção de conídios foram avaliados em meio de cultura. Para a avaliação da virulência os insetos foram tratados com suspensões contendo 1 x 10 8 conídios/ ml. Os experimentos foram realizados em câmara B.O.D. (26ºC e 32ºC e 14h de fotofase). Diariamente os insetos mortos foram coletados para quantificação da produção de conídios. Para avaliação das camas, após a inoculação, insetos foram transferidos para recipientes contendo cama de aviário (nova e usada). Os isolados de B. bassiana foram mais sensíveis à temperatura elevada em relação aos isolados de M. anisopliae no que se refere à viabilidade, crescimento vegetativo e virulência (P < 0,05). A conidiogênese também foi maior para B. bassiana a 26ºC (7 a 11 x 10...

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“…Ross ve Miyahara (197 i) ve McCartney (I 97 i) ise talaş altlık kullanarak yaptıkları çalışmalarda taze ve kuııanılmış altlıklarda yapılan üretimlerde canlı ağırlık, yemden yararlanma ve ölüm oranı yönünden önemli bir fark olmadığını bildirmişlerdir (ıo, ı2). Benzer şekilde Jones ve Hagler (1983) de yeni ve eski talaş altlıklarda yukardaki özeııikler için, kuııanılmış altlığa bağlı farklar bulamamışlardır (7). Her ne kadar Parkhurst ve ark.…”

Section: Bu Araştırmalardanunclassified

“…Altlığı tekrar kullanmanın üretimdeki olumlu etkileri benzer ça-lışmalarda da araştırılmış ve sonuçta özellikle canlı ağırlık yönünden taze ve kullanılmış altlıklarda elde edilen değerlerin ya birbirinden farksız (7,10,12), ya da kullanılmış altlıkla daha iyi (5, 8) düzeyde olduğu gözlenmiştir ki bu araştırma sonuçları ile literatür bildirişleri arasında sıkı bir benzerlik vardır.…”

Section: Bulgularunclassified

BROYLER YETİşTİRlcİU(;INDE ALTLIK TipiNİN VE ALTLlGIN TEKRAR KULLANILMASININ PERFORMANS ÜZERİNE ETKİsİ II. ALTLlGI TEKRAR KULLANMANıN BROYLER PERFORMANSINA ETKİsİ'

Poyraz¹,

Nazlıgül²,

Deliömeroğlu³

et al. 1990

Ankara Üniversitesi Veteriner Fakültesi Dergisi

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The effec! of !iller type and reusing !iııer on broiter performance II. The effect of reusing Hller on broiter performance Summary: Reused lifter was lIsed either as it ıvas or ajfer turning it lipside down.A total of 10125 f1ybro chicks were used in 5 production periods. The el/ects of the type of lifter treatment on hody weight, feed col1-version, mortality and production indices were determined.When the environnıenta! factors were optimised iıı the house, reusing of !itfer had positive ellects on productive peıformance. Cost ofproduction through saving ollabor and Iifter ıvas alsa reduced.Özet: Ayııı altlığı değiştirmeden tekrar kul/anabilme oImıak larm 111 araştırıldığı bu çalışmada altlığı alt-üst etme, yada hiçbir işlem yapmadan tekrar kullanma muameleleri karşılaştırılmıştır.Araştırmada toplam 10125 adet Hybro civciv kullanılarak ardarda 5 dönem üretim yapılmıştır.Uygulama boyunca incelenen altlık muamele tipleri ve aynı altlığı tekrar kullanma canlı ağırlık, yemden yararlanma, ölüm oranı ve ı Bu araştırma A.Ü. Araştırma Fonunca deSTf:klenmiştir.

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Observations on New and Reused Litter for Growing Broilers

Cited by 14 publications

References 12 publications

Locomotor Problems in Broilers Reared on New and Re-Used Litter

Locomotor Problems in Broilers Reared on New and Re-Used Litter

Efeito da temperatura e cama do aviário na virulência de Beauveria bassiana (Bals.) Vuill. e Metarhizium anisopliae (Metsch.) para o controle do cascudinho (Alphitobius diaperinus) (Panzer) (Coleoptera: Tenebrionidae)

BROYLER YETİşTİRlcİU(;INDE ALTLIK TipiNİN VE ALTLlGIN TEKRAR KULLANILMASININ PERFORMANS ÜZERİNE ETKİsİ II. ALTLlGI TEKRAR KULLANMANıN BROYLER PERFORMANSINA ETKİsİ'

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