scholarly journals The Effects of Order of Lactation on Milk Components in Water Buffalo Raised in Sheep Breeding Research Institute

2021 ◽  
Author(s):  
İlkay ÇETİN ◽  
Semih SEVİM ◽  
Mehmet Akif YÜKSEL
Keyword(s):  
Water Buffalo ◽  
Sheep Breeding ◽  
Breeding Research ◽  
Milk Components ◽  
Research Institute

Effect of inbreeding and individual increase in inbreeding on growth in Nilagiri and Sandyno breeds of sheep

2016 ◽  
Vol 58 ◽  
pp. 63-71 ◽  
Author(s):  
R. Venkataramanan ◽  
A. Subramanian ◽  
S.N. Sivaselvam ◽  
T. Sivakumar ◽  
C. Sreekumar ◽  
...  
Keyword(s):  
Growth Traits ◽  
Inbreeding Coefficient ◽  
Pedigree Information ◽  
Research Station ◽  
Sheep Breeding ◽  
Inbreeding Coefficients ◽  
Equivalent Number ◽  
Breeding Research ◽  
Percent Increase ◽  
Two Populations

SummaryIndividual increase in inbreeding coefficients (ΔFi) has been recommended as an alternate measure of inbreeding. It can account for the differences in pedigree knowledge of individual animals and avoids overestimation due to increased number of known generations. The effect of inbreeding (F) and equivalent inbreeding (EF) calculated fromΔFi, on growth traits were studied in Nilagiri and Sandyno flocks of sheep. The study was based on data maintained at the Sheep Breeding Research Station, Sandynallah. The pedigree information and equivalent number of generations were less in Sandyno compared with Nilagiri sheep. The average F and EF for the Nilagiri population were 2.17 and 2.44, respectively and the corresponding values for Sandyno sheep were 0.83 and 0.84, respectively. The trend of inbreeding over years in both the populations indicated that EF was higher during earlier generations when pedigree information was shallow. Among the significant effects of inbreeding, the depression in growth per 1 percent increase in inbreeding ranged from 0.04 kg in weaning weight to 0.10 kg in yearling weight. In general, more traits were affected by inbreeding in Nilagiri sheep, in which greater regression of growth traits was noticed with F compared with EF. Higher values of EF than F in earlier generations in both the populations indicate that EF avoided the potential overestimation of inbreeding coefficient during recent generations. In the Sandyno population, the magnitude of depression noticed among growth traits with significant effects of inbreeding was higher. The differences in response to F and EF noticed in the two populations and possible causes for the trait wise differences in response to F and EF are appropriately discussed.

scholarly journals Penggunaan Tanah Liat Untuk Keberhasilan Pemijahan Ikan Patin Siam (Pangasianodon hypophthalmus) [The Use of Clay for Successful Spawning Patin Siam (Pangasianodon hypophthalmus)]

2018 ◽  
Vol 10 (2) ◽  
pp. 91
Author(s):  
Fariedah Fani ◽  
Audia Audia ◽  
Yuwanita Rani ◽  
Qurrota A’yunin ◽  
Tahapari Evi
Keyword(s):  
Freshwater Fish ◽  
Fertilization Rate ◽  
Seed Stock ◽  
Hatching Rate ◽  
High Demand ◽  
West Java ◽  
Pangasianodon Hypophthalmus ◽  
Fish Breeding ◽  
Breeding Research ◽  
Research Institute

AbstrakIkan patin siam (Pangasianodon hypophthalmus) merupakan komoditi ikan air tawar asal Thailand yang berkembang pesat di Indonesia. Permintaan ikan patin yang cukup tinggi menuntut ketersediaan benih yang terus berkelanjutan, sehingga perlu dilakukan upaya untuk meningkatkan stok benih di pasaran melalui pengembangan teknik pembenihan. Teknik pembenihan adalah suatu tahapan kegiatan dalam budidaya bertujuan  untuk menghasilkan  benih dan sangat menentukan tahap kegiatan selanjutnya, yaitu pembesaran atau pemeliharaan. Pemberian tanah liat diharapkan dapat meningkatkan keberhasilan pemijahan ikan patin siam karena tanah liat mampu mencegah telur ikan patin saing menempel. Percobaan ini menggunakan pemijahan buatan dengan penyuntikan hormon HCG dan ovaprim dan penggunaan tanah liat. Percobaan pembenihan ikan patin siam dilaksanakan pada bulan Juli sampai September 2016 di Balai Penelitian Pemuliaan Ikan (BPPI) Sukamandi, Subang, Jawa Barat. Di akhir percobaan ini diperoleh hasil laju fertilisasi 78,93% dan laju penetasan sebanyak 84%, sedangkan laju fertilisasi pada kontrol lebih rendah dibawah perlakuan yaitu 70,19% sedangkan untuk laju penetasan sebanyak 70,09% AbstractPatin Siam (Pangasianodon hypophthalmus) is a commodity of freshwater fish from Thailand originally which is growing rapidly in Indonesia. The high demand for the patin siam needs the availability of seeds to increase seed stock in the market through hatchery. The hatchery is an activity in cultivation that that aims to produce seeds. The provision of clay is expected to increase the success of spawning of Siamese catfish. This experiment uses artificial spawning with HCG and ovaprim hormone injections. Experiments of Siamese catfish hatchery were carried out from July to September 2016 at the Sukamandi Fish Breeding Research Institute (BPPI), Subang, West Java. At the end of this study resulted in 78,93% in Fertilization Rate and 84% in Hatching Rate while in control 70,19% in Fertilization Rate and 70,09% in Hatching Rate.

scholarly journals Survivability in Nilagiri and Nilagiri Synthetic Sheep: Genetic and Non-Genetic Effects

2017 ◽  
Vol 12 (4) ◽  
Author(s):  
Arth B. Chaudhari ◽  
R. Rajendran ◽  
R. Venkataramanan ◽  
S. N. Sivaselvam
Keyword(s):  
Birth Weight ◽  
Significant Influence ◽  
Tamil Nadu ◽  
Genetic Factors ◽  
Research Station ◽  
Sheep Breeding ◽  
Contemporary Group ◽  
Genetic Groups ◽  
Breeding Research ◽  
Birth Type

Data on 9333 records of Sheep Breeding Research Station, Sandynallah, The Nilagiris (Tamil Nadu) available for 25 years (1989 to 2015) were analyzed for pre- and post-weaning survivability (0- 3 months, 3-6 months, 6-9 months and 9-12 months of age). The effect of various genetic and non-genetic factors, viz., breed, contemporary group of birth, birth type, inbreeding, sex and birth weight on survivability were analyzed. The least squares means for survivability during 0-3, 3-6, 6-9 and 9-12 months were 92.8 ± 0.8, 95.3 ± 0.8, 98.6 ± 0.6 and 98.2 ± 0.7 % for Nilagiri sheep and 89.9 ± 1.0, 92.9 ± 1.0, 96.9 ± 0.7 and 97.0 ± 0.8 % for Nilagiri synthetic sheep, respectively. Breed and contemporary group of birth had significant (P less than 0.01) effects on pre-weaning survivability. Post-weaning survivability was significantly different in the two genetic groups. Contemporary groups and sex of lamb had a significant effect on all the survivability traits, except that for the period from 9-12 months. Birth weight of lambs had a significant influence on early survivability traits of preweaning and 3-6 months group.

The results of the study in the conditions of the Orel region of sour cherry varieties of breeding of the Tatar research institute of agriculture

2020 ◽  
Vol 62 ◽  
pp. 24-31
Author(s):  
A. A. Gulyaeva ◽  
E. V. Bezlepkina ◽  
T. N. Berlova ◽  
A. A. Galkova ◽  
I. N. Efremov
Keyword(s):  
Sour Cherry ◽  
Long Term Study ◽  
Russian Research Institute ◽  
Breeding Research ◽  
Economically Valuable Traits ◽  
High Degree ◽  
Positive Results ◽  
Russian Research ◽  
Research Institute

The article presents the results of a long-term study in the conditions of the Orel region of seven varieties of sour cherry, bred in diff erent years in the Tatar Research Institute of Agriculture: Naumovskaya, Zarya Tatarii, Pamyat Sakharova, Truzhenitsa Tatarii, Tveritinovskaya, Shakirovskaya and Sevastyanovskaya. The varieties were graft ed in stone fruit stands of the Russian Research Institute of Fruit Crops Breeding (RRIFCB, Orel) in 2009. The study was conducted in order to determine the suitability of growing of indicated varieties in the conditions of the Orel region and the possibility of its recommending as sources of economically valuable traits for breeding. The RRIFCB Businka variety was used as a control accession. The study was started in 2010 and lasted until 2018 inclusive. According to the results of research, it was found that all the studied varieties in general correspond to the natural conditions of the Oryol region and can be successfully cultivated in this region. Individual varieties were positively distinguished by a number of parameters. The varieties Pamyat Sakharova and Naumovskaya had the highest fl owering among all the studied accessions. The maximum general degree of fl owering and fruiting stood out for the Truzhenitsa Tatarii variety. Among the studied accessions, all showed a high degree of resistance to the main fungal diseases of this zone – coccomycosis and moniliosis – and did not show a lesion stronger than 2.0 points. Winter hardiness was also relatively high among all the studied accessions, but the varieties Tveritinovskaya, Pamyat Sakharova, and the control variety Businka showed themselves best on this trait. Varieties Sevastyanovskaya and Pamyat Sakharova showed the highest degree of general condition. The variety Pamyat Sakharova, which showed the most positive results in the majority of the studied parameters, can be recommended for cultivation in the production conditions of the Orel region and for further breeding research on sour cherry.

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