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1.
Djuricic D Filipovic N Dobranic T Lipar M Prvanovic N Turk R Gracner D Stanin D Folnozic I Samardzija M 《Reproduction in domestic animals》2011,46(5):776-780
The aims of this study were to compare insulin-like growth factor-I (IGF-I) and progesterone concentrations as indicators of cycle activity in the blood of Boer goats during puerperium out-of-season in mild climate conditions and to investigate the influence of parity and litter size on the concentration of IGF-I and progesterone in serum during the study period. Twenty Boer (8 primiparous and 12 pluriparous) goats were examined in this study. Blood samples were taken every 4 days starting on the 3rd day and up to the 40th day of puerperium. IGF-I and progesterone (P4) blood levels were determined using radio immune assay (RIA). Results indicated cyclic ovarian activity outside the breeding season in 18 of 20 Boer goats. IGF-I levels in blood sera followed oestrus and cyclic ovarian activity. IGF-I concentrations correlated significantly with P4 concentrations. The IGF-I peak preceded the P4 peak by approximately 8 days in cycling goats. IGF-I and P4 blood levels were not influenced by parity or litter size. Changes in blood serum P4 and IGF-I concentrations levels during puerperal period can assist in the evaluation of reproductive status of goats. 相似文献
2.
Balaro Mario Felipe A. de Mello Samuel Guaraná Valverde da Silva Santos Alex Cavalcanti Luiza Mattos Almosny Nádia Regina Pereira Fonseca Jeferson F. Brandão Felipe Z. 《Tropical animal health and production》2019,51(2):345-353
Tropical Animal Health and Production - This study aimed to verify the reproductive seasonality in Saanen goats from distinct parity orders (nulliparous, primiparous, and pluriparous) throughout an... 相似文献
3.
试验选择16只3月龄断奶波隆杂交F1代公羔,采用4×4拉丁方设计,以NRC（1981）营养需要推荐量为参考设计了低能低氮、高能低氮、低能高氮和高能高氮（NRC）4种能氮比日粮,分别为日粮1、2、3和4。探讨不同日粮能氮水平对波尔×隆林杂交羔羊血液生化指标的影响。结果表明,相对于日粮1组,日粮2、3、4组血浆尿素氮差异不显著,但日粮3组与日粮2、4组组间差异显著（P<0.05）;血清白蛋白显著降低,且日粮1组与日粮2、4组差异显著（P<0.05）;血清甘油三酯显著升高,且日粮1组与日粮4组差异显著（P<0.05）;血液胰岛素水平显著升高,且日粮1组与日粮2、4组差异显著（P<0.05）,日粮2、3组组间差异显著（P<0.05）;血清总胆固醇呈下降趋势,且日粮1组与日粮3、4组差异显著（P<0.05）;对其它血液指标无显著影响。 相似文献
4.
为了筛选与崇明白山羊杂交的优势组合,选用波尔山羊♂、萨能山羊♂、崇明白山羊♂各两头分别与20头崇明白山羊♀进行交配,研究不同组合对繁殖性能和血清乳酸脱氢酶(LDH)活性的影响。试验结果表明:①就繁殖性能而言,波尔山羊、萨能山羊与崇明白山羊杂交后,体现出一定的杂交优势。其中,波尔山羊的杂交效果比萨能山羊的杂交效果明显,每头母羊胎产羔2头,活羔1.71头,产羔率为200%,羔羊的断奶成活率平均为100%,产活羔数、产羔率、羔羊成活率、断奶活羔数均为三组中最高,是生产中较为理想的杂交父本。②三种成年公羊血清LDH活性由小到大的顺序是波尔、萨能、崇明,以崇明白山羊的活力为最高;在后代羔羊中,波尔与崇明杂交一代公羊的LDH活性高于萨能杂交一代公羊,也高于崇明羊自交后代,可辅助判断出波尔与崇明羊的杂交优势高于萨能羊,可能是较优杂交组合。 相似文献
5.
Ababneh MM Degefa T 《Journal of veterinary medicine. A, Physiology, pathology, clinical medicine》2005,52(5):244-248
Twenty-six postpartum Balady goats (primiparous, n=13; pluriparous, n=13) were used in this study. One animal of each group was slaughtered on postpartum days 1, 2, 4, 7, 10, 13, 19 and 25; in addition, three control nulliparous goats were slaughtered, and the genital tracts collected. Progress of uterine involution was monitored by repeated ultrasonographic measurements in live animals (primiparous n=6; pluriparous n=6) and measurement of the outer circumference of the uterine horns of slaughtered animals (primiparous n=8; pluriparous n=8). A consistent and progressive decrease in ultrasonographic and outer circumference measurements was found, although faster during the first 7 days postpartum than between days 7 and 19 postpartum. Uterine involution, assessed by the upper limit of the measurements in the nulliparous goats, followed a quadratic pattern and was completed by day 19 postpartum. Ultrasonographically, two elliptical-circular echogenic areas separated by an anechoic line of the stratum vascularis were depicted. Regressing caruncles and fluid in uterine lumen were recognized during the first week postpartum. Further analysis revealed a highly positive correlation between the outer circumference and ultrasonographic measurements. In conclusion, uterine involution in Balady goats was completed by day 19 postpartum and was unrelated to parity. The close association between ultrasound findings and macroscopic involution indicated that ultrasonography can dependably be used to monitor uterine involution under field conditions and can be a suitable alternative to animal slaughter for the study of uterine involution. 相似文献
6.
为了探讨两种同期发清处理方法和不同年龄阶段对非繁殖季节奶山羊同期发情效果的影响,选用12∽15月龄初产奶山羊和4∽5胎经产奶山羊分为两组,采用孕激素耳栓埋植和阴道栓塞两种处理,并辅以肌注PMSG及PG-CL、E2,每组试验重复2次.结果显示：孕激素耳栓埋植法和阴道栓塞法两种同期发情处理方法处理初产组奶山羊总发情率分别达到87.5％和100.0％,经产组分别达到77.8％和83.3％,均无显著差异（P＞0.05）.但两种方法0∽24 h内的同期发情率初产组阴道栓法平均为94.1％,耳栓法平均为37.5％,差异显著（P＜0.05）,经产组阴道栓法平均为61.1％,耳栓法平均为44.4％,差异亦显著（P＜0.05）;无论初产、经产组奶山羊阴道栓法处理0∽24 h内的同期发情率（分别为94.1％、61.1％）显著高于24∽36 h发情率（分别为5.9％、22.2％）（P＜0.05）.用阴道栓同一种方法处理初产和经产奶山羊,初产组24 h的同期发情率（86.7％）显著高于经产组（60.0％）（P＜0.05）.阴道栓法处理同期发情效果优于耳栓法,初产奶山羊的同期发情效果优于经产奶山羊. 相似文献
7.
Twenty-six Balady goats categorized according to parity into primiparous and pluriparous goats were used to investigate bacterial flora of the genital tract and hormonal profiles during the postpartum (PP) period. Escherichia coli and Staphylococcus aureus were isolated in pure or mixed culture from the uterus. Arcanobacterium pyogenes was isolated from swabs obtained from the vagina and cervix of one primiparous goat. Uteri and cervices but not vaginas were free of bacterial contamination by day 10 PP except for one pluriparous goat with scanty E. coli contamination on day 25 PP. Fluctuating oestradiol 17beta (E2) levels demonstrated resumption of follicular activity as early as day 13 PP in both parity groups. Progesterone (P4) levels remained low at basal levels throughout the study period. Higher concentrations of 15-keto-13,14-dihydroprostaglandin F2alpha (PGFM) were observed during the first week PP compared with the rest of the PP period. PGFM concentrations dropped to low basal level by day 10 PP and remained constantly low throughout the study period. P4, E2 and PGFM profiles were not different between the different parity groups. In conclusion, intrauterine infection is not common in goats with normal kidding. E. coli was the most common intrauterine bacterial isolate. E2 and P4 profiles were consistent with resumption of follicular growth but not ovulation. High PGFM concentrations coincided with the fast regression phase of uterine involution. Hormonal profile and bacterial contamination and clearance were similar to those reported in other related species and not related to parity. 相似文献
8.
Raquel Olivas-Salazar Alfredo Estrada-Angulo Miguel Mellado Armando Jacinto Aguilar-Caballero Beatriz Isabel Castro-Pérez Eduardo Gutiérrez-Blanco Fernando Ruiz-Zárate 《Tropical animal health and production》2018,50(4):807-813
The objective of this study was to determine the prevalence of gastrointestinal nematode (GIN) infection in goat flocks on semi-arid rangelands of northeastern Mexico (25° N, 350–400 mm annual precipitation). The study included 668 pluriparous goats from 18 herds in five municipalities of Coahuila and Nuevo Leon, Mexico. Five genetic groups were considered (predominance of Boer, Nubian, Alpine, Saanen, and Toggenburg). Fecal samples were taken from the rectum of each animal to determine the number of eggs per gram (EPG) of GIN. The prevalence of flocks with GIN infections was 88.9%. Similar results were observed for the number of goats infected in the flocks. The Alpine breed presented the highest prevalence and highest EPG loads of GIN, whereas Boer and Nubian were the genetic groups with the lowest (P?<?0.05) EPG. There was a negative effect of GIN infection on the live weight of goats (P?<?0.05). The GIN genera found were Trichostrongylus spp. and Haemonchus spp. It was concluded that in the goat flocks of the semi-arid zones of Mexico was found a high prevalence of infections with gastrointestinal nematodes. The municipality and the breed of the animals were factors that showed influence on this prevalence and the level of infection of the goats. 相似文献
9.
Thoresen SI Havre GN Morberg H Mowinckel P 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1992,21(3):88-94
The stability and storage characteristics of 24 blood constituents from dogs including nine enzymes (ALP, ALT, amylase, AST, CK, GGT, GLDH, LDH, lipase), 15 metabolites and minerals (albumin, bile acids, bilirubin, calcium, cholesterol, creatinine, fructosamine, glucose, magnesium, phosphate, potassium, protein, sodium, triglycerides, urea) were studied. Conditions studied included storing of nonanticoagulated and heparinized whole blood for 3 days (Part A), and storing of serum and heparinized plasma for 3 days (Part B). The storage temperature for both studies was +4 degrees C from day 0 to day 1, and +20 degrees C, from day 1 to day 2 and 3. Eight of 24 analytes showed no significant differences (p > 0.05) for three days in whole blood. However, the stability of all 24 analytes greatly improved by storing serum or heparinized plasma compared to nonanticoagulated or heparinized whole blood. In stored serum or heparinized plasma, 20 of 24 analytes showed no significant differences (p < 0.05) for 3 days. Nine of 24 analytes showed significant differences (p < 0.05) between serum and heparinized plasma, where CK, LDH, GGT, and potassium showed differences of possible clinical importance. This study strongly supports the practice of separating serum/plasma from clot/cells as promptly as possible to achieve improved stability for most analytes under test. 相似文献
10.
McEwen MM Gleed RD Ludders JW Stokol T Del Piero F Erb HN 《Journal of the American Veterinary Medical Association》2000,217(11):1697-1700
OBJECTIVE: To determine hepatic effects of halothane and isoflurane anesthesia in young healthy goats. DESIGN: Randomized prospective clinical trial. ANIMALS: 24 healthy 9-month-old female goats. PROCEDURE: Goats were sedated with xylazine hydrochloride and ketamine hydrochloride and anesthetized with halothane (n = 12) or isoflurane (12) while undergoing tendon surgery. End-tidal halothane and isoflurane concentrations were maintained at 0.9 and 1.2 times the minimal alveolar concentrations, respectively, and ventilation was controlled. Venous blood samples were collected approximately 15 minutes after xylazine was administered and 24 and 48 hours after anesthesia, and serum aspartate aminotransferase (AST), sorbitol dehydrogenase (SDH), alkaline phosphatase (ALP), and gamma-glutamyltransferase (GGT) activities and bilirubin concentration were measured. Goats were euthanatized 25 or 62 days after anesthesia, and postmortem liver specimens were submitted for histologic examination. RESULTS: All goats recovered from anesthesia and survived until euthanasia. Serum SDH, GGT, and ALP activities and bilirubin concentration did not increase after anesthesia, but serum AST activity was significantly increased. However, serum hepatic enzyme activities were within reference limits at all times in all except 1 goat in which serum AST activity was high 24 and 48 hours after anesthesia. This goat had been anesthetized with halothane and had the longest duration of anesthesia. No clinically important abnormalities were seen on histologic examination of liver specimens. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggest that use of halothane or isoflurane for anesthesia in young healthy goats is unlikely to cause hepatic injury. 相似文献
11.
SUMMARY Effects of storage at room temperature (23–25°C) and refrigeration (4–5°C) on various biochemical constituents of camel serum were investigated. Albumin, globulin, calcium, phosphorus, cholesterol, aspartate aminotransferase (AST), alkaline phosphatase (AP) and gamma glutamyltransferase (GGT) did not change over 9 days when stored at 4–5°C. At 4–5°C, creatinine, iron and glucose in camel sera remained stable for 6 days; total protein for 7 days; and blood urea nitrogen for 8 days. Decreased activities in creatine kinase (CK), lactate dehydrogenase (LDH) and alanine aminotransferase (ALT) were apparent after 1, 6 and 7 days, respectively. At room temperature, total protein, albumin, globulin, calcium and phosphorus were stable throughout the 9 days. Changes in glucose and iron occurred after 3 days. Stability at room temperature for LDH was 1 day; AST, 3 days; GGT and ALT, 6 days; and AP, 8 days. CK activity had already declined by 4 hours and by 9 days, only 34% activity remained. 相似文献
12.
植物乳杆菌对肉鸡生长性能和血清生化指标的影响 总被引：1，自引：0，他引：1
本试验旨在研究植物乳杆菌对肉鸡生长性能和血清生化指标的影响,以探讨植物乳杆菌作为生长促进剂及疾病治疗剂的可能性及其适宜的添加剂量.采用2×3复因子试验设计,即大肠杆菌O78攻毒与未攻毒2个处理和植物乳杆菌3个添加水平(0、0.8‰、1.6‰),选用180只AA肉鸡,随机分为6组,每组3个重复,每个重复10只.试验期42 d,分为前期(1~21 d)和后期(22~42 d).结果表明,攻毒后1~42日龄肉鸡平均日增重(ADG)显著降低(P <0.05),料重比(F/G)显著升高(P <0.05),同时21日龄肉鸡血清AST、ALT、ALP和BUN水平显著升高(P <0.05),TP、GLB水平显著降低(P <0.05),42日龄肉鸡血清ALB、AST、ALT和ALP水平显著升高(P <0.05);日粮中添加植物乳杆菌能提高1~42日龄肉鸡ADG,降低ADFI、F/G,同时可显著提高21日龄攻毒肉鸡血清TP、ALB、GLU水平及42日龄攻毒肉鸡血清TP、GLB水平(P <0.05),显著降低21日龄攻毒肉鸡血清ALP、BUN水平及42日龄攻毒肉鸡血清ALT、ALP、BUN水平(P <0.05);攻毒因素与植物乳杆菌水平因素二者的互作效应对后期(22~42 d)肉鸡F/G有显著影响(P <0.05),对21日龄肉鸡血清ALB、GLU、ALP及42日龄肉鸡血清ALT、ALP有极显著影响(P <0.01).综上所述,植物乳杆菌能提高肉鸡的生长性能,改善血液生化指标,且添加1.6‰植物乳杆菌的总体效果均优于0.8‰的添加量,可以考虑将其作为一种新型的替代抗生素的微生态制剂. 相似文献
13.
This study was carried out to determine the level of certain biochemical variables reflecting the energy metabolic statuses during the first week of lactation in goats. A total of 120 Anglo-Nubian, Angora, Baladi, and Damascus does (30 does per breed) were used throughout 5 consecutive parities (30 does per parity) to investigate the effect of breed, parity, day of lactation, and their interaction on serum metabolites including total protein, albumin, globulin, glucose, total lipids, cholesterol, and transaminases. Blood samples were collected every other day during the first week of lactation. Baladi does had the greatest (P < 0.001) values in all measured biochemical variables followed by Anglo-Nubian [in total protein, globulin, and aminotransferase (AST)] and Damascus (in globulin and AST) and then Angora, which had the lowest (P < 0.001) values for all variables. Fifth parity exhibited the greatest (P < 0.001) values in all serum metabolites compared with other parities except for alanine transaminase (ALT) enzyme activity in which the greatest (P = 0.046) values were observed in the first and fourth parties. Serum concentrations of the measured variables increased gradually throughout the first day after kidding until the seventh day for total protein (P < 0.001), albumin (P = 0.013), globulin (P = 0.017), and cholesterol (P = 0.028) whereas serum glucose concentration exhibited an opposite trend. Serum concentrations of total lipids and enzyme activities of AST and ALT were not affected by day (P > 0.05) after kidding. Baladi goats had the least (P < 0.001) serum insulin concentration, which was associated (P < 0.001) with greatest serum glucose concentration. Serum triiodothyronine (T(3)) was inversely correlated (P = 0.032) with milk yield whereas greatest (P = 0.003) T(3) concentrations were associated with least (P < 0.001) milk yield recorded in Angora goats. Animal physiological responses and their indices were not affected (P > 0.05) by breed whereas both rectal temperature and coefficient of heat tolerance were affected (P < 0.001) by parity in an opposite direction. Baladi goats expressed an aspect of adaptability where their rectal temperature decreased and coefficient of heat tolerance increased with increasing parity number. 相似文献
14.
Renan Braga Paiano Daniela Becker Birgel Jeannine Bonilla Eduardo Harry Birgel Junior 《Reproduction in domestic animals》2020,55(11):1599-1606
The aim of the present study was to evaluate the biochemical profile and reproductive performance in postpartum dairy cows with clinical metritis. The research was carried out using performed on 213 pluriparous lactating cows from two dairy herds in southeast Brazil. Dairy cows were assigned into a group of healthy cows (n = 147) and cows with metritis (n = 66). Blood samples to assess serum albumin, cholesterol, fibrinogen, calcium, gamma-glutammyltransferase (GGT), aspartate aminotransferase (AST) and β-hydroxybutyrate (BHBA) concentrations were performed on day 8 ± 2 postpartum. Metritic cows had lower (p < .05) serum albumin, cholesterol and calcium concentration, and higher (p < .05) GGT and AST activity, and BHBA and fibrinogen concentrations when compared to the healthy group. The calving-to-conception interval and services per pregnancy were higher in metritic cows (p < .01) than in healthy cows and the conception rate at first service was lower in metric group (p < .01). Variable importance in projection plots demonstrated that cholesterol was the main discriminator between metritic and healthy cows. Our results indicated alterations in the biochemical profile and impaired reproduction performance in metritic cows. 相似文献
15.
为了提高海南黑山羊的生长性能，本试验以不同比例柱花草和王草青贮饲料混合饲喂海南黑山羊，以筛选两种粗饲料的最适搭配比例。选用16只日龄、体重相近的海南黑山羊，随机分成4组，分别为对照组（CK组，粗饲料为王草）和3个试验组（S-KS2、S-KS3、S-KS4组，柱花草和王草青贮饲料分别以20∶80、30∶70、40∶60的干物质比例组合），饲喂60 d后测定山羊生长性能、血清总蛋白（TP）、白蛋白（ALB）、球蛋白（GLB）水平；谷丙转氨酶（ALT）、谷草转氨酶（AST）活性；尿素氮（BUN）、甘油三酯（TG）、葡萄糖（GLU）、总胆固醇（TC）含量及养分表观消化率。结果表明：S-KS2组平均日增重（ADG）和血液尿素氮含量显著低于S-KS3组（P<0.05），料重比（F/G）显著高于S-KS3组（P<0.05），但都与CK组差异不显著（P>0.05）；S-KS3组山羊平均日增重、平均日采食量（ADFI）显著高于CK组（P<0.05）；S-KS4组血清总蛋白和球蛋白含量显著高于CK组（P<0.05），但中性洗涤纤维（NDF）和酸性洗涤纤维（ADF）表观消化率显著低于S-KS2组和S-KS3组（P<0.05）。以上结果说明，在本试验条件下，柱花草和王草青贮饲料以一定比例混合饲喂并未对山羊造成不良影响，且在比例为30∶70时山羊的平均日增重和平均日采食量均得到提高，所以推荐柱花草和王草青贮饲料以30∶70的比例混合饲喂海南黑山羊。 相似文献
16.
纳米氧化锌对肉仔鸡血清生化指标的影响 总被引：1，自引：0，他引：1
本试验旨在研究纳米氧化锌对肉仔鸡生化指标的影响。选取1日龄艾维茵肉仔鸡,随机分为4个处理,处理1为对照组,在基础日粮中添加80mg/kg氧化锌,处理2、3、4组分别添加40、80、200mg/kg钠米氧化锌。分别于14和28日龄每个处理组随机取6只鸡测血清生化指标。试验结果表明:与对照组相比,各试验组28日龄血清锌含量都表现出提高的趋势,其中处理4达到显著水平(P<0.05);处理3和处理4显著提高28日龄血清谷草转氨酶(P<0.05)活性,处理2也表现出明显的提高趋势;在14日龄各试验组血清总蛋白含量均表现出提高的趋势,其中处理2达到显著水平(P<0.05),血清球蛋白和白蛋白也表现出提高的趋势。但在28日龄处理3却显著降低血清白蛋白含量(P<0.05),处理2和处理4也表现出降低的趋势;处理3和处理4显著提高了14日龄血清胆固醇含量(P<0.05),处理2也表现出提高趋势,但28日龄各处理却表现出降低的趋势,其中处理2达到显著水平(P<0.05)。因此,在本试验条件下,添加40mg/kg钠米氧化锌对肉仔鸡血清锌、GLU、AKP、AST和ALT活性未产生影响;添加200mg/kg钠米氧化锌可以提高肉仔鸡血清锌含量;添加80和200mg/kg钠米氧化锌影响肉仔鸡血清谷草转氨酶活性和胆固醇含量。 相似文献
17.
苜蓿青饲对波尔山羊生长性能及血液生理生化指标的影响 总被引：4，自引：1，他引：3
近年来,随着苜蓿(Medicago sativa L.)产业的发展,相关草产品在奶牛饲养中得到广泛应用并日益成熟,但在山羊饲养的消化生理、营养代谢及利用方面的研究却相对缺乏。为了解不同水平苜蓿鲜草饲粮对波尔山羊生长性能及血液生理生化指标的影响,于2005年7-9月,选用3月龄、初始体重17.77±1.05 kg、遗传背景基本一致的波尔山羊(Capra hircus L.)45只,随机分为5个处理组,各组饲粮中苜蓿鲜草替代水平分别为0%(对照组)、15%(试验1组)、30%(试验2组)、45%(试验3组)和60%(试验4组)(按干物质计)。结果表明:试验1、2、3组平均日增重和料重比都优于对照组,但差异不显著;试验2组血液总蛋白和球蛋白含量极显著(P<0.01)、白蛋白含量显著(P<0.05)高于对照组,而总胆固醇、高密度酯蛋白胆固醇含量显著低于对照组(P<0.05),尽管各组血糖、尿素氮、甘油三酯及低密度酯蛋白胆固醇含量差异不显著,但试验Ⅱ组甘油三酯和低密度酯蛋白胆固醇含量均最低。因此,30%替代水平为最佳,建议在生产中应用。 相似文献
18.
寄生虫病对山羊的健康影响较大,对内蒙古鄂托克旗7个苏木进行了粪便寄生虫卵检测,同时对患有腹泻的阿尔巴斯白绒山羊和健康阿尔巴斯白绒山羊进行血液生化指标检测和分析。结果显示,该地区阿尔巴斯白绒山羊所患寄生虫病主要是球虫病和线虫病。腹泻的阿尔巴斯白绒山羊血清中TG、ALT、AST、ALP显著(P<0.05)高于健康阿尔巴斯白绒山羊,TC和CK指标极显著(P<0.01)高于健康阿尔巴斯白绒山羊;而TP、ALB和GLU-God均低于健康阿尔巴斯白绒山羊(P<0.05)。 相似文献
19.
Pauli JV 《New Zealand veterinary journal》1983,31(9):150-151
Serum gamma glutamyl transferase (GGT) levels in blood samples taken from normal lambs which had suckled colostrum were found to be up to 140 times normal adult levels. These high serum levels declined rapidly reaching a stable level approximately 60% higher than normal adult values by 24 days of age. Newborn lambs which had not yet consumed colostrum had GGT levels which would be considered normal in adult sheep. The GGT concentration in ewes' colostrum was up to 470 times normal serum levels. There was a significant positive correlation between serum GGT and gamma globulin levels in blood samples taken from lambs within 24 hours of birth. Lambs' serum alkaline phosphatase (AP) and serum glutamate oxaloacetate transaminase (SGOT) levels also rose concurrently with the absorption of colostral gamma globulin, with the day 1 AP values being significantly correlated with the serum gamma globulin levels. Serum AP levels declined gradually but were still well above normal adult levels at 45 days of age while SGOT levels returned to normal adult levels by two to three days after birth. It is concluded therefore that, as previously shown in calves, lambs acquire high levels of serum GGT activity from their mothers' colostrum in proportion to the amount of gamma globulin absorbed and also show a concurrent rise in serum AP activity. However the rise in SGOT levels at this time has not been observed in calves. 相似文献
20.
Dhollander S Bos J Kora S Sanneh M Gaye M Leak S Berkvens D Geerts S 《Veterinary parasitology》2005,130(1-2):1-8
West African Dwarf goats (WADs) and their Saanen crosses were experimentally infected with Trypanosoma congolense. No significant differences were found between trypanosome parasitaemia and antibody response of the crossbred and WAD goats. Neither the WAD goats nor the Saanen crosses were able to control the drop in PCV following trypanosome infection. The level of anaemia caused by the trypanosome infection was similar in the two breeds during the trial. Based on these findings, no difference in tolerance or susceptibility to T. congolense could be demonstrated between the WAD goats and their Saanen crosses. Although the weight of all goats increased during the trial, the crosses gained significantly more weight than the WAD goats. The trypanosome infection reduced the growth rate of both breeds, but this reduction was not statistically significant. Crossbreeding trypanotolerant WADs with trypanosusceptible Saanen goats might, therefore, be an effective means of increasing productivity. 相似文献