Major carp is a group of fish species commonly cultured in Indian Subcontinent. Fish is the major source of protein, omega-3 fatty acids, vitamins and minerals. With the robust increase in human population, the demand of food is also increasing. To overcome the food, demand many food sectors are working in line to cope with the protein requirements management of brood stock and successful breeding is also very important. Estimation of degree-hours for the spawning response, hatching of brood stock and their fertilization rate, hatching rate of fish eggs is one of the major aspects of hatchery management. Degree-hours is a standard unit that is used to measure the heat requirement for spawning and hatching while data is scarce for many species. The current study was designed to investigate the degree-hours to spawning and hatching for major carps i.e., Rohu (Labeo rohita) and Mrigala (Cirrhinus mrigala) during May to August 2022 at Punjab Fish Seed Hatchery, Rawal Town Islamabad, Pakistan. Two triplets (one male and two females) of each species were selected for induced breeding. Ovaprim was administrated at the rate of 0.5ml/kg for female and 0.2ml/kg for male to stimulate ovulation and spermitation respectively. Both species showed ovulation rate (100%). Spawning was occurred after 9.35±0.4299 hours in Rohu and in Mrigala 10.18±0.4393 hours at average water temperature of 26.3±0.575. Degree-hours to spawning in Rohu and Mrigala were calculated as 248.6±9.35 and 264.6±5.625 respectively. Higher fertilization rate (87.23±2.029%) and hatching rate (84.88±1.7747%) were observed in Mrigala (Cirrhinus mrigala) as compared to Rohu (Labeo rohita) i.e. (85.75±1.856%) and (81.75±1.525%) respectively. Hatching activity proceeded rapidly in Rohu and completed in 741.025±14.532 degree-hours while, in Mrigala it occurred in 778.43±9.1972 degree-hours. This was a first documented report on effect of degree-hours on induced breeding of indigenous carps of Pakistan i.e., Rohu and Mrigala under controlled hatchery environment.

A breeding experiment was conducted on Hypophthalmichthys nobilis and Cyprinus carpio April to August 2022 at Tawakkal Fish Hatchery at Muzaffargarh, Punjab, Pakistan. A single dose of intramuscular injection of Ovaprim with 0.7 ml/kg for female and 0.2 ml/kg for male brooders of both species were administrated. After hormonal adminteration brooders were kept in the circular tank for spawning. The 100% ovulation rate was observed in both species. Spawning response was observed after the latency period of (8.80±0.1-10.84±0.02 hours) and (8.1±0.26-9.8±0.01 hours) in Hypophthalmichthys nobilis and Cyprinus carpio respectively at water temperature range from 22-28 °C. Fertilization rate (61-73%) was observed in Hypophthalmichthys nobilis while, in Cyprinus carpio it was (60-76%) at water temperature range 22-28 °C respectively.  Degree-hours to spawning were calculated in Hypophthalmichthys nobilis (238.2±1.46-246.4±1) while in Cyprinus carpio it was (215.6±1.3- 226.8±1.28) respectively. Hatching rate of Hypophthalmichthys nobilis was calculated as (52-70 %), while in Cyprinus carpio it was (56 -71 %) and degree-hours to hatching was calculated as (748-784) and (682-702) respectively at water temperature range 22-28 °C respectively. Overall, the rates of fertilization and hatching increases with the increase of water temperature up to limit. These findings can be used to calculate spawning probabilities to enable future spawning predictions for the Hypophthalmichthys nobilis and Cyprinus carpio.

Production and performance of small ruminants is affected by the fluctuation of the housing system. Therefore, the current study was conducted to investigate the behavior of Beetal goats on different types of floors including soil, sand, sawdust, and concrete. Twenty-eight (n=28) female Beetal goats having age of 3±0.5 years and weight 40±5kg were selected randomly and behavioral observations were recorded from 20 March to 3 May 2019 (spring season). All animals were individually weighed and randomly divided into 4 groups (G1, G2, G3, and G4) have seven animals each. Each group was restricted (remain on the one floor) for 10 days to each of the four treatments i.e., T1 (soil), T2 (sand), T3 (sawdust), and T4 (concrete). After the restriction phase, free access was given to all four groups for all the four treatments i.e., T1 (soil), T2 (sand), T3 (sawdust), and T4 (concrete) for 2 days, so that animal can spend time at any floor willingly and no of animals spending time between treatments was recorded. The data for the selected parameters (Lying time, lying bouts, standing time & other, Preference lying time, Preference Standing time & other, Defecation frequency, Urination frequency) were collected for one hour at 12:00, 16:00, 20:00, 24:00, 04:00, and 08:00 hours in the last two days of each treatment period. The method of behavioral observation was based on the method of “Time sampling and “Point sampling. The maximum average lying time observed on soil was 37.00min/hr, urination frequency was observed more on sand (1.10/hr) and defecation frequency was found more on soil (1.33/hr.) Average lying time during the free access period was also higher on soil 30.53min/hr as compared to other flooring types. Finally, it is found that lying time was higher on the soil floor, although the result was not significantly more urination frequency was noticed on the sand floor. Multiple floors in the far may provide the preferred area for goats lying and elimination and consequently help in managing the animal health security. The purpose of this study is to provide awareness about the effect of floor on the production and performance of Beetal goats.

Major carp i.e., Rohu (Labeo rohita) and Mrigala (Cirrhinus mrigala) are economically very important and commonly cultured in Indian subcontinent. In Pakistan aquatic organisms especially, freshwater species are facing many environmental problems such as variation in weather pattern. Temperature fluctuation is pervasive and most common environmental factor that is very distressing for major carps. The larvae of Labeo rohita and Cirrhinus mrigala were treated with different temperatures 10, 15, 20, 25, 30, 33 and 35 °C following 28 °C acclimation temperature. Thermal variation rate was recorded 2 °C/day. Death rate of both species larvae was observed. In temperature group 10 °C, 15% and 64% mortality of Labeo rohita was observed while, in Cirrhinus mrigala 16% and 66% mortality was recorded at 14 and 10 °C respectively. When larvae of both species were exposed to 10-20 °C, significantly (P < 0.05) maximum death rate was observed at this temperature as compared to other experimental groups. Cumulative death rate of Labeo rohita and Cirrhinus mrigala were recorded 84, 43, 22, 16, 1, 2, 3% and 86, 45, 23, 17, 1, 2, 4% in 10, 15, 20, 25, 30, 33, 35 °C temperature groups, respectively. All larvae of both species died within 2 days at temperature group 10 °C and continued to die at temperature groups 15 °C and 20 °C up to 11 days. Both species larval mortality persisted in temperature groups at 25 °C up to 18 days. Simple regression analysis was applied for thermal range (T < 28 °C and T > 28 °C), variation in death per fall and elevation of ∆T = 1 °C was measured in the log-linear regression model framework. When water temperature dropped from acclimation temperature 28 °C, the accumulative death of larvae for 1 °C decrease of temperature from acclimation one, significantly (P < 0.05) was calculated in both species. When water temperature elevated from 28 °C, less steep beta coefficient was observed in Labeo rohita and Cirrhinus mrigala. 1 °C elevation of water temperature from acclimation temperature 28 °C, the accumulative death in Labeo rohita and Cirrhinus mrigala were (P > 0.05) obtained