Results 31 to 40 of about 8,324 (197)

Multiple Forms of Duck‐Egg‐White Lysozyme [PDF]

European Journal of Biochemistry, 1971
Lysozyme was purified from pooled samples of Peking, Kaki and “wild‐type” duck eggwhites by gel filtration and ion‐exchange chromatography on Amberlite CG‐50. Two different lysozymes were found, called in relation with previous studies, duck‐lysozyme II and ducklysozyme III. The enzymes were shown to be pure by several criteria.
J, Hermann, J, Jollès, P, Jollès
openaire   +2 more sources

The study of candidate genes in the improvement of egg production in ducks – a review

Poultry Science, 2022
: Duck is the second-largest poultry species aside from chicken. The rate of egg production is a major determinant of the economic income of poultry farmers. Among the reproductive organs, the ovary is a major part of the female reproductive system which
Semiu Folaniyi Bello, Adeniyi Charles Adeola, Qinghua Nie   +2 more
doaj   +1 more source

Multiple Lysozymes of Duck Egg White

Journal of Biological Chemistry, 1971
Abstract Lysozyme was purified from a pooled sample of Peking duck egg whites by ion exchange chromatography and gel filtration. Three different lysozymes were found, and each was shown to be pure by several criteria. The three enzymes were like chicken lysozyme in molecular size and specific activity, although they could be distinguished from it, as ...
E M, Prager, A C, Wilson
openaire   +2 more sources

Identification of candidate genes affecting egg weight trait of Putian Black duck based on whole genome resequencing

Animal Biotechnology
Egg weight is a primary economic trait in poultry breeding. Putian Black duck, an excellent local laying duck breed in Fujian Province, includes two different strains, black feather strain and white feather strain.
Yinhua Yang, Weilong Lin, Huihuang Li, Fan Yang, Xinguo Bao, Chengfu Pan, Lianjie Lai, Weimin Lin, Ruiyi Lin   +8 more
doaj   +1 more source

Reproduction Performance of the Second Generation of Reciprocal Cross of Tegal and Magelang Duck [PDF]

BIO Web of Conferences
This study aims to identify and compare the reproduction performance of the second generation (F2) of reciprocal crossbred between Tegal and Magelang duck. Crossing male (♂) Magelang duck and female (♀) Tegal duck produces Maggal duck while crossing male
Purwantini Dattadewi, Santosa R. Singgih Sugeng, Santosa Setya Agus, Susanto Agus, Chandrasari Dewi Puspita   +4 more
doaj   +1 more source

Breeding Ecology of the Critically Endangered Baer's Pochard (<i>Aythya baeri</i>): Nest Threats and Conservation Implications. [PDF]

Ecol Evol
This study identifies that the daily nest survival of Baer's Pochard was primarily influenced by three factors: it increased with greater distance from the shore and the height above water, and decreased with later laying dates. Both nest location and timing were identified as critical factors for reproductive success.
Ma F, Ye Y, Li L, Geng S, Li Z, Ren J, Ding C.   +6 more
europepmc   +2 more sources

Functional Properties of Salted Duck Egg Powder with Maltodextrin and Tricalcium Phosphate Incorporation as Anticaking Agents

Turkish Journal of Agriculture: Food Science and Technology, 2023
The protein content in egg contributes effectively to the fulfilment of nutrients in daily life at an affordable price and acceptable organoleptic properties.
Nur Aini Mahmudah, Anang Widigdyo, David Kurniawan, Nur Agustin Mardiana, Aditya Wirawantoro Putra, Adiguna Sasama Wahyu Utama, Hindra Kurniawan, Panji Purnomo, Fitri Komala Sari   +8 more
doaj   +1 more source

Understanding the spacing of placodes in the eye: A comparative study across age and species

The Anatomical Record, EarlyView.
Abstract The conjunctival placodes of the avian eye form in an intriguing and conserved sequence in a circular annulus around the cornea. These 13–16 placodes develop into papillae that are essential for inducing underlying intramembranous flat bones, known as scleral ossicles, which form an important part of the ocular skeleton.
Florence Joseph, Tamara A. Franz‐Odendaal   +1 more
wiley   +1 more source

Performative and economic analysis on local duck farming in Central Java - Indonesia

Journal of the Indonesian Tropical Animal Agriculture, 2020
Central Java is the region that produces the second largest duck egg production in Indonesia or reaches 13.55% of the total national duck egg production.
I. Ismoyowati, B. C. Pratama, M. N. Innayah   +2 more
doaj   +1 more source

Evaluasi Pakan Daun Ubi Jalar dan Daun Singkong pada Kualitas Telur Itik yang Disimpan pada Suhu 5°C

Jurnal Ilmu Pertanian Indonesia, 2022
Egg yolks contain omega-3 and omega-6 fatty acids that are easily oxidized during storage, so they must be protected. The objective of this study was to evaluate the effect of feeding containing sweet potato leaves meal (TDU) and cassava leaves meal ...
Tera Fit Rayani, Sumiati Sumiati, Arif Darmawan   +2 more
doaj   +1 more source