What causes infertility in cattle?

What causes infertility in cattle?

Low fertility can be caused by a range of different conditions including poor expression and detection of heat, mistiming of insemination, poor egg and embryo quality, and an inad- equate uterine environment preventing the establishment of pregnancy.

What are the factors affecting breeding efficiency?

These include: libido, mating ability, serving capacity, and social dominance. These factors are only evaluated by watching the herd bull during the breeding season.

What is the disease that is the leading cause of infertility in cattle?

The most common reproductive diseases in cattle are brucellosis (Bang’s disease); leptospirosis; infectious bovine rhinotracheitis (IBR) and bovine virus diarrhea (BVD) complexes; vibriosis; and trichomoniasis.

What is the reproductive challenge in dairy cattle?

Reproductive Performance and Breeding. Getting dairy cows pregnant after calving is a major challenge for most dairy operations. Typically, dairy cows recover ovarian activity around 35 days after calving, and uterine involution is complete 50 days after calving, allowing for a new pregnancy.

What are the possible factors affecting fertility problems in dairy cattle?

High Incidence of Cows Requiring Three or More Services

• Excessive weight loss or poor body condition.
• Improper palpation technique during pregnancy exams.
• Heat stress.
• Inseminating cows too late in relation to ovulation.
• Deficient crude protein or excess degradable protein intake.
• Gross over-conditioning.

How do dairy cows increase fertility?

How to improve dairy cow fertility through nutrition

1. Improved milk yields, decreased fertility.
2. The danger of negative energy balance.
3. Make dietary changes gradually.
4. Feed your herd fertile.
5. One for all versus one for each.
6. Optimum BCS.
7. Beware excessive protein.
8. Fat is your friend. As long as you use it properly.

How do cows increase fertility?

Tips on feeding and cow comfort to improve fertility

1. Focus on intake from eight weeks before to three weeks after calving.
2. Turn her around quickly after calving.
3. Ensure cows are not overstocked.
4. Get cows lying down.
5. Minimise change.
6. Detect disease early and treat aggressively.

How do you improve reproductive efficiency?

“Reproductive efficiency improves when you have a bigger-picture focus, preparing animals year-round for breeding, calving, breeding back and repeating the cycle,” says Pohler. “Ultimately, you have to find technologies and management practices that work for you.”

How can bulls improve fertility?

Zinc supplementation has been shown to increase ejaculate volume, sperm concentration and motility in bulls. Furthermore, chelated/organic sources of zinc supplementation resulted in more improved fertility than did inorganic sources alone (Arthington et al., 2002).

What are the reproductive failures arising in dairy animals as they affect their lifetime performance?

Among the major reproductive problems that have direct impact on reproductive performance of dairy cows are abortion, dystocia, retained fetal membrane (RFM), pyometra, metritis, prolapse (uterine and vaginal), anoestrus and repeat breeding.

How can Bulls improve fertility?

How reproduction affects dairy production?

Milk producers can improve productivity and returns from dairying through selective breeding and control of reproduction. Reproductive efficiency (e.g., calving intervals, conception rates) can be improved by using genotypes that are suitable to the production environment, and appropriate husbandry practices.

Why is the fertility of dairy cows declining?

The fertility of dairy cows has declined worldwide and this change is surprising given the importance of good fertility to the dairy industry. The decline in fertility can be explained by management changes within the dairy industry and also negative genetic correlations between milk production and reproduction.

Does energy balance affect early postpartum follicular development in dairy cows?

Energy balance, metabolic hormones, and early postpartum follicular development in dairy cows fed prilled lipid. Journal of Dairy Science 81: 121 – 131. CrossRef Google Scholar PubMed Beam, S. W. and Butler, W. R. 1999. Energy balance effects on follicular development and first ovulation in post-partum cows.

How can we improve fertility in confinement-style dairy herds?

Controlled breeding programs improve reproductive efficiency in confinement-style dairy herds and can be combined with post-insemination treatments to enhance fertility. An additional immediate short-term solution involves changing the diet so that dietary ingredients invoke hormonal responses that benefit the reproduction of the cow.

What are the endocrine parameters used to measure fertility in dairy herds?

Defined endocrine parameters such as interval to post-partum commencement of luteal activity, inter-ovulatory interval and length of luteal and inter-luteal intervals were used with a number of traditional measures of reproductive performance to investigate the current status of fertility in a sample of United Kingdom dairy herds.