Reproductive Performance of Asian Catfish (Hemibagrus wyckii, Bleeker, 1858)-Preliminary Study

2017 ◽  
Vol 16 (7) ◽  
pp. 550-556 ◽  
Author(s):  
Netti Aryani ◽  
Indra Suharman ◽  
Ainul Mardiah ◽  
Hafrijal Syandri
Keyword(s):  
Reproductive Performance ◽  
Preliminary Study ◽  
Asian Catfish

A SURVEY OF DAIRY HERDS IN THE FRASER VALLEY OF BRITISH COLUMBIA TO DETERMINE POSSIBLE CAUSES OF UNSATISFACTORY REPRODUCTIVE PERFORMANCE

1977 ◽  
Vol 57 (3) ◽  
pp. 395-404 ◽  
Author(s):  
R. G. PETERSON ◽  
D. E. WALDERN
Keyword(s):  
British Columbia ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Soil Samples ◽  
Dairy Herds ◽  
Return Rates ◽  
Factors Associated ◽  
Preliminary Study ◽  
Fraser Valley ◽  
Feed Samples

In a preliminary study of reproductive performance of 261 dairy herds in the Lower Fraser Valley of British Columbia for the period 1966 through 1970, mean non-return rate was 4.7% less in 1970 than in the previous 4 yr. In February 1972, factors associated with the reproductive performance of 68 herds in the same region were studied in greater detail. Herd non-return rates for 1971 were estimated from artificial insemination (AI) unit records. Feed samples, soil samples, feed intakes, and herd production levels were obtained for each period. The results indicated that differences in mineral nutrition between herds were associated with reproductive performance. The Cu/Mo ratio in silage was the most important factor, with increases in Cu relative to Mo being associated with low herd non-return rates. Other minerals found to be important included the Cu/Mo ratio in hay and grain, Cu in hay, Mo and Se in grain, Ca and P in silage and the variability of soil Mg levels. The type of forage fed was also important, with herds receiving diverse rations having higher conception rates than those restricted to one type of silage and/or hay.

scholarly journals Reproductive performance of asian catfish (Hemibagrus wyckii Bagridae), a candidate species for aquaculture

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 683 ◽  
Author(s):  
Netti Aryani ◽  
Indra Suharman ◽  
Hafrijal Syandri
Keyword(s):  
Reproductive Performance ◽  
Fertilization Rate ◽  
Culture Conditions ◽  
Hatching Rate ◽  
Male Fish ◽  
Egg Weight ◽  
Study Results ◽  
Candidate Species ◽  
Asian Catfish ◽  
Egg Diameter

Background: Hemibagrus wyckii Bagridae is one of the most important economic fish species that lives in the rivers and reservoir in Riau Province, Indonesia. The present study aimed to determine the reproductive performance of H.wyckii under culture conditions. Methods: A total of 10 female and 10 male fish were selected, and weight, length, characteristics of egg and sperm, and hatchery performance were measured. Eggs were fertilized using the dry method. Egg weight and egg diameters were measured for 50 eggs per female. Egg size (50 eggs for each fish) was measured using an Olympus microscope (CX40). Then, saline solution was added over the eggs, followed by the addition of pooled sperm from 10 males. Results: Average relative fecundity, egg weight and egg diameter were 2060±512 eggs/kg fish, 29.86±1.21 mg and 2.67±0.26 mm, respectively. The fertilization rate and hatching rate were 60.91±4.68% and 42.91±2.92% respectively. Sperm characteristics such as volume per fish (mL), pH, concentration (per mL), motility (%) and duration of motility (second) were 0.82±0.20, 7.15±0.12, 3.68±0.15, 72.77±1.46 and 47.5±4.84, respectively. Conclusion: The study results and scientific observations regarding reproductive performance suggest that H. wyckii can be considered a new candidate species for aquaculture.

Maternal size on reproductive performance, egg and larval quality in the endangered Asian catfish, Clarias magur

2021 ◽  
Author(s):  
Shajahan Ferosekhan ◽  
Abhay Kumar Giri ◽  
Sangram Ketan Sahoo ◽  
Kalidoss Radhakrishnan ◽  
Bindu Raman Pillai ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Maternal Size ◽  
Larval Quality ◽  
Asian Catfish

scholarly journals A preliminary study on selected utility traits and mineral composition of meat in King pigeons managed under extensive system in Poland

2021 ◽  
Vol 20 (1) ◽  
pp. 47-54
Author(s):  
Danuta Majewska ◽  
◽  
Tomasz Pohorecki ◽  
Beata Matysiak ◽  
◽  
...  
Keyword(s):  
Growth Rate ◽  
Mineral Composition ◽  
Breeding Season ◽  
Reproductive Performance ◽  
Fertilization Rate ◽  
Hatching Rate ◽  
Highest Weight ◽  
Slaughter Performance ◽  
Private Breeder ◽  
Preliminary Study

The study was conducted on King pigeons managed by a private breeder in Poland. The studied population consisted of three years old parent pigeon pairs of the King breed and the their offspring obtained during the breeding season (March-November). The aims of the research involved an evaluation of the reproductive performance of King pigeons, analysis of growth rate, survival, slaughter performance and mineral composition of squab meat. In the analyzed breeding season, an average of 8.7 eggs was obtained per female. The fertilization rate and hatching rate of chicks from fertilized eggs were 80.0% and 75.8%, respectively. The highest weight gain in pigeons was observed between the date of hatching and 4 weeks of age. Pigeons slaughtered at 6 weeks of age were characterized by higher slaughter performance (66.1%) than 4 week-old pigeons (60.4%). Meat of this pigeon breed is a rich source of valuable minerals such as potassium (4060 mg per kg), magnesium (296 mg per kg), iron (52 mg per kg), zinc (9 mg per kg) and silicon (30 mg per kg).

scholarly journals The Use of Vagina–Cervix Length Measurement in Evaluation of Future Reproductive Performance of Sows: A Preliminary Study under Commercial Conditions

Animals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 158 ◽  
Author(s):  
Ryszard Tuz ◽  
Tomasz Schwarz ◽  
Martyna Małopolska ◽  
Jacek Nowicki
Keyword(s):  
Litter Size ◽  
Reproductive Performance ◽  
Distal Part ◽  
Reproductive Tract ◽  
Live Weight ◽  
Significant Difference ◽  
Breeding Herd ◽  
Preliminary Study ◽  
Anatomical Property ◽  
Total Life

The length of the distal part of the internal reproductive tract seems to be related to the length and capacity of uterine horns, which is the most important anatomical property influencing litter size in sows. The aim of this study was to evaluate variation in vagina–cervix length (VCL) in gilts and differences in reproductive performance of sows according to VCL. The study was performed in a commercial farm using 221 gilts introduced into the breeding herd. Females were divided into three groups: (S) short (26.0 ± 2.0 cm, n = 36), (M) medium (31.3 ± 1.46 cm; n = 121), and (L) long VCL (36.0 ± 1.4 cm; n = 42) (p < 0.01). Mean live weight of gilts did not differ significantly among groups. Mean first litter size significantly varied between groups S (10.47 ± 3.01) and L (11.98 ± 2.32) (p = 0.0075) and M (10.67 ± 2.98) and L (p = 0.0054), while there was no significant difference between group S and M. Significant advantage (p = 0.023) was noted in the number of litters obtained from sows in groups L (4.69 ± 3.14), M (3.67 ± 2.71), and S (3.36 ± 2.40), and thus in total life production of sows (p = 0.0054), i.e., the number of piglets born alive. To conclude, the differences in vagina–cervix length in gilts during the first service was associated with significant variability in litter size during the first reproductive cycle, giving an advantage to females with longer VCL. Gilts with longer VCL were culled later and gave significantly more litters. Consequently, their lifetime piglet production was greater than gilts with shorter VCL.

scholarly journals Reproductive performance of asian catfish ( Hemibagrus wyckii Bleeker, 1858), a candidate species for aquaculture

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 683 ◽  
Author(s):  
Netti Aryani ◽  
Indra Suharman ◽  
Hafrijal Syandri
Keyword(s):  
Reproductive Performance ◽  
Fertilization Rate ◽  
Culture Conditions ◽  
Hatching Rate ◽  
Male Fish ◽  
Egg Weight ◽  
Study Results ◽  
Candidate Species ◽  
Asian Catfish ◽  
Egg Diameter

Background: Hemibagrus wyckii Bagridae is one of the important economic fish species that lives in the rivers and reservoir in Riau Province, Indonesia. The present study aimed to determine the reproductive performance of H.wyckii under culture conditions. Method s: A total of 10 female and 10 male fish were selected, and weight, length, characteristics of egg and sperm, and hatchery performance were measured. Eggs were fertilized using the dry method. Egg weight and egg diameters were measured for 50 eggs per female. Egg size (50 eggs for each fish) was measured using Labo microscope model  L-711 using software camera 3. Then, saline solution was added over the eggs, followed by the addition of pooled sperm from 10 males. Results: Average relative fecundity, egg weight and egg diameter were 2060±512 eggs/kg fish, 29.86±1.21 mg and 2.67±0.26 mm, respectively. The fertilization rate and hatching rate were 60.91±4.68% and 42.91±2.92% respectively. Sperm characteristics such as volume per fish (mL), pH, concentration (per mL), motility (%) and duration of motility (second) were 0.82±0.20, 7.15±0.12, 3.68±0.15, 72.77±1.46 and 47.5±4.84, respectively. Conclusion: The study results and scientific observations regarding reproductive performance suggest that H. wyckii can be considered a new candidate species for aquaculture.

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