Cross-bred Cows Research Articles

Seasonal mastitis assessment in Holstein Friesian Crossbred cows using infrared thermography

Seasonal mastitis assessment in Holstein Friesian Crossbred cows using infrared thermography

Reproductive Performances of SIMGOUD Crossbreed Cows and The Effect of Concentrate Feed Supplementation on The Production and Chemical Composition of Milk

Reproductive Performances of SIMGOUD Crossbreed Cows and The Effect of Concentrate Feed Supplementation on The Production and Chemical Composition of Milk

Follicular persistence, oestradiol level and conception on the first and second day of oestrus and influence of thermal stress in cross-bred dairy cows manifesting prolonged oestrus

Increasing incidence of prolonged oestrus reported in cross-bred dairy cows bred through artificial insemination (AI), is attributed to various causative factors and underlying mechanisms. The present study was to assess the pattern of follicular growth, oestrogen secretion, and conception on the first and second day of oestrus and to understand the influence of thermal stress as a causative factor for oestrus prolongation. The year-round study involved 52 crossbred cows intensively managed under a hot humid climate, during their second and third months postpartum. Animals were examined for the status of ovarian follicles, oestrogen level, and conception to AI on Day 0 and Day 1 of oestrus confirmation and the findings were compared across seasons. While oestrus detection rate (ODR) and conception of AI were lowest during the summer season attributable to maximum TS, better ODR (P<0.05) and more prolonged oestrus (P<0.01) occurred during the seasons of favourable climate having least TS and better green fodder availability. Besides, the occurrence of larger follicles and almost similar oestradiol levels on Day 0 and Day 1 of oestrus, better conception rate for double AI (63.16 %) than total AI (48.48 %) indicated prolonged oestrus and involvement of delayed ovulation among the causation. Comparison of the seasonal pattern of follicular growth, oestrogen level, and conception to AI between Day 0 and Day 1 further clarifies the influence of TS and increased milk production as the potential contributors to the occurrence of prolonged oestrus in cross-bred cows under the hot humid tropical climate. Keywords: Crossbred cow, Oestrogen, Prolonged oestrus, Thermal stress

Standard plate count in raw of different pre-hand milking treatments by using aqueous solution of turmeric as udder wash in cross-bred cows

Standard plate count in raw of different pre-hand milking treatments by using aqueous solution of turmeric as udder wash in cross-bred cows

Productive and reproductive performance of cattle in the tropical part of India

The assessment of productive and reproductive traits helps in identifying animals with superior germplasm in comparison to their population mean which helps in selecting animals for breeding purposes. The early detection of low- performing animals based on the parameters considered for the evaluation of productive and reproductive traits in the study can help in culling animals at an early age, thus saving the cost of maintenance or losses for dairy farmers. Overall, it was observed that the productive and reproductive performance of cross-bred cows was better as compared to the buffaloes and non-descript cows. Therefore, the study advises taking the following steps; record keeping, regular testing for various diseases, balanced ration, maintenance of proper hygiene, availability of nearby veterinary services, and upgradation of non- descript animals to exploit maximum production potential at farmers’ level.

Impact of Estrus Response and Pregnancy Rate of Two Cows That are Injected with Prostaglandin F2α Hormone in the System Maintenance is Different to Livestock Farming

Livestock farming is an effort to breed livestock to obtain benefits or results in the form of products and income. The success of a livestock business depends on three elements commonly referred to as the production triangle, namely seeds, feed, and management. In addition, the techno-socioeconomic characteristics of livestock farmers greatly influence the development of livestock businesses and will later affect the income of livestock farmers. The aim of the research was to examine the injection of the prostaglandin F2α hormone on the estrus response and pregnancy in Ongole crossbreed and Simental crossbreed cows reared using intensive and semi-intensive rearing systems. The data obtained will be analyzed using analysis of variance (ANOVA) and if there is a real effect, continue with further testing with Duncan's Multiple Range Test. The results of research on the percentage of estrus after the first and second injection of the prostaglandin hormone can be seen in the table. The highest percentage of estrus was in the S1P2 treatment with a percentage value of 80% and the lowest percentage value was in the S2P1 and S2P2 treatments with a percentage value of 40%. The percentage of estrus after the second injection, the percentage value for all treatments increased and the percentage of estrus was highest in the S1P2 treatment with a value of 100%. The average value of onset of estrus after the second injection of the PGF2α hormone was lower than the first injection. The longest duration of estrus in the treatment after the first PGF2α hormone injection was in the S1P2 treatment with an average of 24.75 hours, while the longest duration of estrus in the treatment after the second PGF2α hormone injection was in the S2P1 treatment with an average of 25 hours. PO cattle and Simental crossbreeds injected with PGF2α gave no different estrous responses. Intensive and semi-intensive rearing systems provide no different estrous responses. Raising PO cows using a semi-intensive rearing system injected with PGF2α provides an estrous response and high pregnancy rates (60), to be one of techniques to breed cattle of PO cow and have good impact to the success of a livestock business

Analysis of Farmer's Perception and Constraints on Dairy Cooperatives in Amhara Region, Ethiopia

This study was done to examine the farmer’s perception and constraints on dairy cooperatives in Amhara region, Ethiopia. A sample of 266 smallholder dairy farmers was selected using a multi-stage sampling technique. Perception of farmers was analyzed using relative importance index, and constraints of dairy cooperative performance were analyzed using Henry Garrett's ranking technique. The result indicates that farmers have a positive perception of certain attributes of dairy cooperatives; such as increasing social networks, improving income, and serving as a saving source. This suggests that farmers believe these aspects of dairy cooperatives are beneficial. Conversely, farmers have concerns and dissatisfaction with the way the cooperative is running, the loyalty of members to the cooperative, member's treatment by cooperatives, and the decision-making process. The study also identified that lack of milk processing facilities, poor member awareness, and member involvement in the decision-making process are the foremost internal challenges of dairy cooperatives, while high cost of cross-breed cows, occurrence of animal disease, and low productivity of local breed cows are external constraints hindering dairy cooperative performance. Thus, to enhance farmers' perception and participation in cooperative activities, emphasis should be given to addressing concerns and improving the overall functioning of dairy cooperatives.

Effect of Dietary Supplementation of Wet Brewer’s Grains on Lactation Performance of Jersey Cross Breed Cows

Effect of Dietary Supplementation of Wet Brewer’s Grains on Lactation Performance of Jersey Cross Breed Cows

Physico-Chemical Characteristics of Cervical Mucus in Repeat Breeder Crossbred Cows Following Ceftiofur Therapy

The present study was carried out to investigate physio-biochemical attributes of cervical mucus following treatment of repeat breeder crossbred cows (HF×K) with ceftiofur crystalline free acid @ 6.6 mg/kg body weight administer separately in two groups of cows through intramuscular (Group-I) and subcutaneous route (Group-II). Each group included 15 repeat breeder cows whose selection was random and based on history of conception failure, gyneco-clinical observation of genitalia and number of artificial insemination per conception. The findings envisaged higher percentage of thick consistency (53.33%) and cloudy colored cervical mucus (93.33%) which returned to their normal characteristics of thin and clear type at post-treatment oestrus in both groups (60.00 and 80.00 %, Group-I; 66.67 and 93.33%, Group-II). The calcium and inorganic phosphorus contents of cervical mucus were significantly higher (p<0.05) at post-treatment oestrus in repeat breeders of Group-I and II whereas total cholesterol declined following treatment (24.05±1.85 and 23.45±1.91 mg/dl) then pre-treatment values (31.12±2.68 and 35.40±4.74 mg/dl) in two groups of repeaters but difference was significant only in Group-I. On the other hand, cervical mucus concentration of sodium, potassium and acid phosphates decreased while total lipids and alkaline phosphatase increased non-significantly at post-treatment oestrus in repeat breeder cows of both groups.
 It is concluded from the finding that ceftiofur therapy of repeat breeder cows was beneficial to restore normalcy of physio-biochemical properties of cervical mucus in both groups.

Decision Tree for 305-Day Milk Yield in Cross-bred Cattle

Cows' Lactation Milk Yield (LMY) is a crucial factor in animal breeding operations. Investigating the influence of potential environmental factors on lactation milk yield is of paramount importance and in order to identify the various factors influencing lactation milk yield, dairy cattle records were analysed using the regression tree approach. Age, Parity (P), Lactation Length (LL), and Calving Season (CS) were taken into account as explanatory variables while 305-day Milk Yield (MY) as a dependent variable. Decision tree study revealed that Lactation Length, followed by Parity, Age, and Calving Season, had the greatest impact on the 305-d milk output of cross-bred cows. The regression trees use the tree to represent the recursive part. Each terminal node or leaf of the tree represents a cell of the section and has just added a simple pattern applied to it in this cell. It was evident from nodes (branches) in regression tree, that cows with parities of 1 and 4 (node 11) produced less milk than cows with parities of 2, 3, 5, 6, 7 and 8 (node 10). More milk was produced by cows older than 4.3 years and whose calving seasons were spring and summer (node 40). With the use of the regression tree method, we were able to extract sub-homogenous groups based on the explanatory variables from records of cross-bred cattle and determine the combinations of environmental conditions that produced the maximum 305-d milk yield.

Studies on the efficacy of certain phyto therapeutic agents in treating repeat breeding syndrome in cross-bred cows

Studies on the efficacy of certain phyto therapeutic agents in treating repeat breeding syndrome in cross-bred cows

Milk Yield, Composition and Physicochemical Properties of Indigenous and F1 Crossbred (Bos indicus with Bos taurus) Cows in Azad Jammu and Kashmir

Milk Yield, Composition and Physicochemical Properties of Indigenous and F1 Crossbred (Bos indicus with Bos taurus) Cows in Azad Jammu and Kashmir

Understanding Livestock Systems and their Effect on Reproductive Performance of Achai and Jersey Crossbred Cows in Northern Hindukush Mountainous Ranges

Understanding Livestock Systems and their Effect on Reproductive Performance of Achai and Jersey Crossbred Cows in Northern Hindukush Mountainous Ranges

ECONOMIC USEFUL AND BIOLOGICAL SIGNS IN PUREBRED AND CROSS-BRED COWS OF THE UKRAINIAN BLACK-AND-WHITE DAIRY BREED UNDER THE EFFECTS OF HIGH TEMPERATURES AND TYPES OF FEEDING

The results of studies of economically useful and biological traits in purebred (Ukrainian Black-and-White dairy breed) and cross-breed (Ukrainian Black-and-White dairy breed x Swiss) cows are given, taking into account the effect of high temperatures and types of feeding. At the same time, it was established that purebred cows exceeded crossbred cows in terms of milk yield, but were inferior to the latter in terms of milk quality (fat content, protein content). In general, the advantage in milk fat and protein yield in favor of crossbred cows, in the section of three lactations, was from 3.0 to 9.5 kg and from 2.6 to 6.4 kg, respectively.
 Along with this, the dependence of heat resistance of cows on their genotype was established. Cross-breed cows were characterized by better adaptation properties to the effects of hot weather conditions, as they had more balanced indicators of heat resistance.
 Analysis of indicators of milk productivity of cows with different types of feeding showed that the use of the same type of feeding provides an increase in milk yield per 533 kg of milk, fat content by 0.14% and protein by 0.01% compared to traditional feeding technology.

Influence of Blood Glucose, Total Protein and Haemoglobin at The Time of Induced Estrus on Conception Rate on Anestrus Crossbred Cows

The present study was conducted to evaluate the influence of blood glucose, total protein and haemoglobin at the time of induced estrus on conception rate in 30 postpartum anestrus crossbred dairy cows. The cows were treated with progesterone intravaginal (CIDR) based estrus induction protocol with double fixed timed inseminations at 12 and 24 h after injection of last GnRH. estrus induction response was 100% with majority of the cows (80%) showed intermediate intensity of estrus. On the day of first AI, blood was collected from all the animals for the estimation of glucose, total protein and haemoglobin. The mean time to onset of estrus from the time of removal of CIDR was 44.85 ± 7.23 h. The overall conception rate in the present study was 30 % (9/30). In the present study, the mean values of glucose, total protein and haemoglobin at the time of estrus were 43.81 ± 1.14 mg/dl, 7.78 ± 0.24 g/dl and 8.68 ± 0.22 g/dl respectively. The mean glucose, total protein and haemoglobin levels in the anestrus cows which were included in the study are lower than the normal range. There is no significant different in the biochemical parameters among the cows showing weak, intermediate and intense intensity of estrus. Similarly, there is no significant difference in the biochemical parameters between the cows that conceived and cows not has not conceived. The findings in the present study clearly indicates that poor nutritional status may be the cause for the anestrus condition of the animal under field conditions.

Ovarian Follicular Development Study in Jersey Crossbred Cows Reared in India

Ovarian follicular wave pattern studies provide the basis for applying reproductive intervention for improving fertility and improving the success of embryo transfer programmes in cattle. Four apparently healthy non-pregnant, pluriparous crossbred Jersey cows reared in a local farm located at Tirupur were utilized for this study. The evaluation was performed more than one plane, and all the measurable follicles (>3mm) were counted and recorded every other day. Various follicular dynamics related parameters were studied such as day of wave emergence, dominant follicle, static phase of dominant follicle, regressing phase of dominant follicle, day of maximum diameter, maximum size, duration of growth, growth rate, duration of atresia, rate of atresia and duration of detection. The Ultrasonographic evaluation was performed every other day throughout an estrous cycle starting from observed estrus (Day 0) to the subsequent standing estrus. A total of 10 normal estrous cycles were monitored for follicular wave pattern, in which 8 out of 10 (80 per cent) were two wave and 2 out of 10 (20 per cent) were three wave estrous cycles. The mean length of 2-wave estrous cycle was 19.25±0.41 days and 3-wave estrous cycle was 21.50±0.50 days. It was concluded that Jersey crossbred cows frequently had 2 wave estrous cycle with pre-ovulatory follicle size 12.62±0.94mm with the growth rate of 1.13±0.12mm/day and the size of pre-ovulatory follicle in 3-wave estrous cycle was lower (10.75±1.25mm) than 2-wave estrous cycle.

Adoption of Cross Breed Cows Distributed by Adami Tullu Agricultural Research Center in East Shewa and West Arsi Zones, Oromia Region, Ethiopia

Adoption of Cross Breed Cows Distributed by Adami Tullu Agricultural Research Center in East Shewa and West Arsi Zones, Oromia Region, Ethiopia

Reproductive Performance of Crossbreed Cows on Lowland Terrain

This study aims to identify the differences in reproduction performance of Ongole cross (PO), Limousine cross (Limpo), and Simmental cross (Simpo) in Kerek district, Tuban regency. Primary data was taken by interviewing inseminators and farmers, while secondary data was taken from the Fisheries and Animal Husbandry Department of Tuban regency. The total sample was 360 cows consisting of 30 PO, Limpo, and Simpo cows aged 3, 4, 5, and 6 years respectively which were calculated based on the Roscoe formula. Data was analyzed using the Simple Linear Regression and ANOVA followed by Duncan's multiple range test at a significance level of 95%. The results showed that the services per conception (S/C), conception rate (CR), and calving rate (CvR) were not significantly different (p >0.05) between PO, Limpo and Simpo cows. Meanwhile, days open (DO) and fertility status (FS) of PO cows were higher (p <0.05) than Limpo and Simpo cows. There was no significant difference (p >0.05) in DO and FS between Limpo and Simpo cows. The linear equation with age as a predictor (X) of S/C, DO, and CI (Y) values were not significant (p >0.05) in PO, Limpo, and Simpo cows. It could be concluded that the reproductive performance of PO cows was better than Limpo and Simpo cows.

216 Alternative Trace Mineral Supplementation Strategies for Beef Cattle

Abstract This study evaluated an injectable trace mineral (ITM) source containing Cu, Mn, Se, and Zn (Multimin90) administered to gestating beef cows receiving a free-choice 2:1 mineral supplementation. Two hundred and eight multiparous and primiparous cross-bred cows (BW = 621 kg ± 96.6 kg; avg. 4 yr. old) were randomly allotted into one of two treatments and received either i) ITM + inorganic, granular 2:1 trace mineral free-choice; or ii) inorganic, granular 2:1 trace mineral free-choice alone (CON). A cross-over design was used for the study and cows in year 2 (n = 202) were allocated to the other treatment group. The ITM was administered at 4 weeks pre-calving and 4 weeks pre-breeding. Body weight and body condition score (BCS) were evaluated at injection times and pregnancy diagnosis using a weigh scale and a 5-point BCS scale (Lowman et al., 1976). Mineral status was determined from blood serum mineral concentration at 4 weeks pre-calving, 4 weeks pre-breeding, and at pregnancy diagnosis. Cows grazed grass-legume pastures in the summer and had access to dugout and well water sources. Cows were managed as two groups during spring and while on summer pasture during a 63-day breeding season until weaning. Serum blood mineral concentrations at 4 weeks pre-calving, 4 weeks pre-breeding, and pregnancy diagnosis did not differ (P > 0.05) between treatment groups. Copper conetrations at pregnancy diagnosis tended (P = 0.09) to be greater for the ITM cows compared with CON cows. At 4 weeks pre-calving and pregnancy diagnosis, Cu and Mn concentrations were numerically greater in the ITM group compared with the CON group. There were no significant results (P > 0.05) for cow BW, BCS, and days pregnant. Over 2-yr, pregnancy rates were 93.6% and 88.6% for the ITM and CON cows, respectively. Calves born to ITM and CON cows did not differ (P > 0.05) for birth weight, Julian birth date, age at weaning, average daily gain, or adjusted 205 d wean weight. However, CON calves tended (P = 0.07) to be heavier at weaning. Study findings suggest that administering an ITM source to beef cows does not improve cow and calf performance, which suggests that more research in this area is required. Additionally, pregnancy rates in beef cattle may be improved with the use of an injectable trace mineral.

DINAMIKA OVARIUM PADA SAPI PERANAKAN SIMMENTAL MENGALAMI ESTRUS BERKEPANJANGAN YANG DITERAPI DENGAN HUMAN CHORIONIC GONADOTROPHIN (hCG) SECARA INTRAVENA

This study was aimed to identify ovarian dynamics using ultrasonography (USG) in simmental crossbreedcows diagnosed prolonged oestrustreatment with human chorionic gonadotrophin (hCG). A total of four Simmental crossbreed cows diagnosed with prolonged oestrouswere used in this study. The first oestrous observations in all four cows were a control group, where as the next oestrous cycle observation to the same four cows treated with 1500 IU hCG in jugular vein refer to treated group. The observation of ovarian dynamics was started from the first oestrous day until ovulation occurs in the second oestrus cycle using ultrasonography (USG) with a linear rectal probe. At the same time, follicle and corpus luteum (CL) images were recorded every day. Data were analyzed using paired data comparison test (pair sample t-test). The observation results ovarian dynamics on prolonged oestruscows showed that the long of oestrous cycle was 22.5 ± 0.5 days, and there are three follicular wave patterns in oestrous cycle. The first wave of dominant follicle was firstly identified on day 3.3 ± 0.5, reached maximum diameter 12.0 ± 0.3 cm. The second and third dominant follicle appeared on day 10.8 ± 0.5 and 15.8 ± 0.5 cm reached maximum diameter 1.2 ± 0.3 cm dan 1.5 ± 0.3 cm.Therapy with hCG does not significantly affect the dominant follicle’s diameter during oestrous (p>0.05). The conclusion of this study showed that 1500 IU of hCG therapy does not affect the development of dominant follicle, however, it can shorten the duration of oestrous and ovulation time.