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Effect of the length of the daily photoperiod on the weight of the thyroid, adrenals and liver in broilers


, : Effect of the length of the daily photoperiod on the weight of the thyroid, adrenals and liver in broilers. Polskie Archiwum Weterynaryjne 17(3): 503-513

From hatching, 149 Cornish X White Rock chicks were kept for 9 wk in rooms illuminated for 24 h (group A) or 10 h (group B) daily. The experiments were conducted both in summer and in winter. In summer, mean body weight of males at 9 mth was 1830 g in group A and 1825 g in group B; corresponding body weights for females were 1388 and 1436 g resp. In winter, mean body weight of males was 1877 g in group A and 1829 g in group B; corresponding body weights for females were 1515 and 1529 g resp.

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Šlapeta, J., 2014: Cryptosporidiosis and Cryptosporidium species in animals and humans: a thirty colour rainbow?. Parasites of the genus Cryptosporidium (Apicomplexa) cause cryptosporidiosis in humans and animals worldwide. The species names used for Cryptosporidium spp. are confusing for parasitologists and even more so for non-specialists. Here, 30 named sp...

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Aaron, G.; Yuste, R., 2006: Reverse optical probing (ROPING) of neocortical circuits. We describe an optical technique to detect circuits of synaptically connected neurons. By combining calcium imaging of the spontaneous activity of neuronal populations with intracellular recordings from a given neuron, we perform a type of reverse...

Inberg M.V.; Sutinen S.; Tala E., 1969: Leio myoma of the lung and intercostal space report of 4 cases. Scandinavian Journal of Thoracic & Cardiovascular Surgery 3(1): 52-58

Scott, D.J.; Tregear, G.W.; Bathgate, R.A.D., 2005: LGR7-truncate is a splice variant of the relaxin receptor LGR7 and is a relaxin antagonist in vitro. The relaxin receptor (LGR7) and the insulin-like peptide 3 (INSL3) receptor (LGR8) are unique LGR family members in possessing a single, functionally important amino terminal LDL-A module.1 Mouse and rat cDNA was screened for LGR7 and LGR7 splice...

Bou Saada, Y.; Zakharova, V.; Chernyak, B.; Dib, C.; Carnac, G.; Dokudovskaya, S.; Vassetzky, Y.S., 2017: Control of DNA integrity in skeletal muscle under physiological and pathological conditions. Skeletal muscle is a highly oxygen-consuming tissue that ensures body support and movement, as well as nutrient and temperature regulation. DNA damage induced by reactive oxygen species is present in muscles and tends to accumulate with age. Here,...

Ravikumar, V.; Andrade, M.; Mulvey, D.; Cole, D.L., 1998: Use of carbocation scavenger during oligonucleotide synthesis. Official Gazette of the United States Patent & Trademark Office Patents 1207(1): 486, Feb 3

Hirdes W.; Nunoo E.A., 1993: The Tarkwaian Au-conglomerates of Ghana; a unique Proterozoic mineral deposit as compared to some features of the Archaean Au-conglomerates of the Witwatersrand. Publication Occasionnelle - Centre International Pour la Formation et les Echanges Geologiques = Occasional Publication - International Center for Training and Exchanges in the Geosciences 23: 126-129