Effects of non-lactating period length on the subsequent calving ease and reproductive performance of Holstein, Brown Swiss and the crosses

El-Tarabany, Mahmoud S.

doi:10.1016/j.anireprosci.2015.04.008

Cited by 18 publications

(9 citation statements)

References 65 publications

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“…PHF×MO cows had the highest milk yield, reaching 27.97 kg, while PHF×NO cows had the lowest—18.93 kg. In Dezetter and others () study, HO × MO and HO × NO crossbred cows with 40% to 59% of HO genes had a 305‐d milk yield of respectively 859 and 1411 kg, which was lower than purebred HO cows. In a study using HO × Jersey (J) first‐cross cows, Coffey and others () found that the yield of milk solids in crossbreds exceeded their respective parental average performance.…”

Section: Resultsmentioning

confidence: 89%

“…The effects of heterosis are opposite to the effects of inbreeding depression, and it extends the lifespan and use of animals as well as improves their fertility and health (Weigel and Barlass ; Funk ; Heins and others ; Buckley and others ). For example, El‐Tarabany () found that HF × Brown Swiss (BS) hybrids were stronger, less susceptible to metabolic burden and more tolerant to changes in their daily ration compared to purebred HF. According to Dezetter and others (), the impact of heterosis is visible in improved efficiency, reproductive measures of cows and in the cytological quality of milk.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Dairy Cow Crossbreeding on Selected Performance Traits and Quality of Milk in First Generation Crossbreds

Puppel

Bogusz

Gołębiewski

et al. 2017

Journal of Food Science

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The main goal of crossbreeding Holstein-Friesian (HF) cows with bulls of other dairy or combined breeds is to improve their performance traits. Thus, the aim of this investigation was to compare the dairy performance traits of first generation crossbreds produced by crossbreeding Polish HF cows with bulls of other breeds (Norman, Norwegian Red, Danish Red, Brown Swiss, Montbeliarde, and Simmental). This was done by analyzing the fatty acid profile and technological quality of the milk from these first generation crossbreds. The investigation showed that crossbreeding greatly influenced the performance parameters and technological quality of the milk of the first generation crossbreds obtained from crossbreeding Polish HF cows with bulls of other dairy or combined breeds. The crossbreed cows characterized by the highest both quantity and quality of milk. Also, the best parameters of milk fat dispersion (that is, the highest values of these parameters) that are useful in the production of hard ripening cheeses and butter were found in the milk of crossbreed cows. Health beneficially, saturated fatty acids level in milk of crossbreeds was by 25.96% lower in crossbreds milk when compared to purebred cows. The most beneficial content of whey proteins was found in the milk of Polish HF and Norwegian Red crosses, where it was 19.04% higher than in pure breed Holsteins. F1 cows tend to express better functional traits than Holstein (PHF) cows. Effect of heterosis was larger and gave better results when there was a greater genetic distance between the animals used for crossbreeding. Keywords: cattle, heterosis, hybrids, milkPractical Application: The effects of heterosis are opposite to the effects of inbreeding depression, and it extends the lifespan and use of animals as well as improves their fertility and health. The main goal of crossbreeding Holstein-Friesian cows with bulls of other dairy or combined breeds is to improve their performance traits. F1 cows tend to express better functional traits than Holstein (PHF) cows. Effect of heterosis was larger and gave better results when there was a greater genetic distance between the animals used for crossbreeding.

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Section: Resultsmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Effect of Dairy Cow Crossbreeding on Selected Performance Traits and Quality of Milk in First Generation Crossbreds

Puppel

Bogusz

Gołębiewski

et al. 2017

Journal of Food Science

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“…Therefore, the consequence of the harmful effects of heat stress on fertility is more obvious in high-producing dairy cows (Al-Katanani et al, 1999). The increasing energy requirement in the postpartum period of the high producing dairy cow coincides with aspects of a progressively increasing milk yield, negative energy balance, loss of body condition and longer periods of post-partum infertility (Wiltbank et al, 2002;El-Tarabany, 2015). In addition, the period of post-partum infertility is also associated with a number of other factors such as maternal age, endometritis, mastitis, lameness and other managerial factors (Grohn and Rojala-Schultz, 2000).…”

Section: Discussionmentioning

confidence: 99%

Impact of thermal stress on the efficiency of ovulation synchronization protocols in Holstein cows

El‐Tarabany

El-Tarabany

2015

Animal Reproduction Science

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“…They lose weight during this period which can cause a reduction in body condition score (BCS) with a corresponding negative correlation with progesterone secretion and fetal survival (Grimard et al 2006). Purebred BS cows were persistent in amounts of milk produced and had a more consistent BCS and milk production than purebred HO cows (El-Tarabany 2015).…”

Section: Discussionmentioning

confidence: 99%

Impact of stillbirth and abortion on the subsequent fertility and productivity of Holstein, Brown Swiss and their crosses in subtropics

El-Tarabany

2015

Trop Anim Health Prod

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Stillbirth and abortion are serious problems in cattle breeding, from both economic and animal welfare standpoints. The aim of this study was to estimate the incidence and implications of stillbirth and abortion on the subsequent reproductive and production performance of the pure Holstein (HO), Brown Swiss (BS), and their F1 crosses (BF) in Egypt. The total number of records was 9275. The pure BS heifers had significantly (P < 0.05) lower incidence of stillbirth, abortion, and twinning (4.5, 2.3, and 1.5 %, respectively), compared with pure HO heifers (15.4, 5.3, and 4.8 %, respectively). Pure BS and BF cows coped with the harsh conditions of abnormal births, even though their subsequent reproductive indices were slightly reduced after stillbirths. In contrast, pure HO cows had significantly (P < 0.05) longer calving intervals and days open (475 and 198 days and 427 and 151 days, respectively) after stillbirths and abortions, compared with those that had normal births (381 and 149 days, respectively). Stillbirths decreased 305-day milk yield (305-MY, 14.5 %) and peak milk yield (Peak-MY, 29.1 %) in pure HO cows when compared with those calved normally. However, productive indices of pure BS and BF cows exposed to stillbirth or abortion were more tolerant. In conclusion, pure BS and BF cows can endure the difficult consequences of stillbirths or abortions under subtropical conditions. Nevertheless, fertility and milk yield had been deteriorated in pure HO.

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Effects of non-lactating period length on the subsequent calving ease and reproductive performance of Holstein, Brown Swiss and the crosses

Cited by 18 publications

References 65 publications

Effect of Dairy Cow Crossbreeding on Selected Performance Traits and Quality of Milk in First Generation Crossbreds

Effect of Dairy Cow Crossbreeding on Selected Performance Traits and Quality of Milk in First Generation Crossbreds

Impact of thermal stress on the efficiency of ovulation synchronization protocols in Holstein cows

Impact of stillbirth and abortion on the subsequent fertility and productivity of Holstein, Brown Swiss and their crosses in subtropics

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